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📊 Intel view 📋 Audit JSON 🔄 Changelog
55
💰 Paid API data A2A 1.0 v2.0.0 x402 micropay

SYNTHORA — M2M Intelligence Mesh

api.hergertsynthora.com · SYNTHORA

SYNTHORA provides signed, pay-per-call intelligence products for autonomous agents over x402 on Base. The product list is generated from the current discoverable registry.

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Verify the domain api.hergertsynthora.com via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
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Compare public evidence

🔔 Watch this agent. Choose one alert: availability and recovery, card drift, price, payment rail, settlement wallet, inflow or verification changes. Add more alert types from your account. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
Trust score
55/100
grade D · 9 criteria
Uptime
100.0%
133 direct probes · 30d
~50 ms response
Observed inflow · 30d
$1.77
82 tx · on-chain
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
10 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 55/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown click to collapse breakdown
partial Valid AgentCard 9/10
Declares A2A 1.0 but is missing v1.0 REQUIRED field: supportedInterfaces.
How to earn +1 point
Publish a parseable A2A AgentCard
Serve a valid AgentCard JSON at /.well-known/agent-card.json. The A2A 1.0 schema is the reference; we accept the v0.x backwards-compatible variant too.
Docs
fail Live JSON-RPC 3/25
Endpoint currently returns 5xx, may be transient.
How to earn +22 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
Docs
partial Protocol version 8/10
Declares A2A 1.0 but missing supportedInterfaces[] (required in v1.0, update your card to reach 10/10).
How to earn +2 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` (Major.Minor, no patch number — §3.6) to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs
info JWS signature 0/10
Card is unsigned (most published agents are).
pass Uptime track record 15/15
133/133 probes succeeded (100% uptime).
pass Skill declaration 10/10
Declares 26 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: SYNTHORA (https://hergertsynthora.com). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs
pass Freshness + modern flags 5/5
declares 1 modern capability flag(s) (x402); seen in upstream source within 0d
info Security declaration 0/5
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded
0
invocations 7d
reached the endpoint through us
0
lookups 7d
our API answered about it
0
impressions 7d
appeared in a result list
Per event type (7d)
8
search_click
Recent events (last 20)
When Event Method Status Latency
2026-10-20T18:48:54 search_click /agents — ok 2ms
2026-10-20T18:48:52 search_click /agents — ok 2ms
2026-10-19T23:21:42 search_click /agents — ok 2ms
2026-10-19T23:21:39 search_click /agents — ok 6ms
2026-10-19T06:14:34 search_click /agents — ok 1ms
2026-10-19T06:14:31 search_click /agents — ok 1ms
2026-10-19T06:09:10 search_click /agents — ok 2ms
2026-10-19T06:09:08 search_click /agents — ok 3ms
2026-10-18T04:30:46 search_click /agents — ok 3ms
2026-10-18T04:30:43 search_click /agents — ok 3ms
2026-10-18T00:30:22 search_impression — 200 ok 732ms
2026-10-16T01:51:04 search_click /agents — ok 5ms
2026-10-16T01:51:01 search_click /agents — ok 2ms
2026-10-11T06:10:33 search_click /agents — ok 4ms
2026-10-11T03:58:05 search_click /agents — ok 2ms
2026-10-10T12:55:47 search_click /agents — ok 3ms
2026-10-10T11:08:11 search_click /agents — ok 2ms
2026-10-09T19:00:29 search_click /agents — ok 3ms
2026-10-09T17:57:54 search_click /agents — ok 4ms
2026-10-09T17:53:19 search_click /agents — ok 34ms

Card history

10 snapshots drifted 9× Every change to agent-card.json
Agent card snapshots
Captured Hash Snapshot
2026-10-18 10:56:26 current b0446e3f114b… view →
2026-10-18 01:55:16 f0962b24670f… view →
2026-10-17 12:02:37 ce1693178a37… view →
2026-10-16 12:07:41 2bd1005fa353… view →
2026-10-15 05:35:17 71f172522401… view →
2026-10-14 07:26:54 eac940cf88e7… view →
2026-10-13 05:00:49 92cbc632ca69… view →
2026-10-12 23:13:03 87b6a1990619… view →
2026-10-12 05:14:15 89db058d0a62… view →
2026-10-11 08:56:30 66519c73c32e… view →
Showing latest 10. The full snapshot history is on Pro (and free for the verified owner) via GET /api/agents/api.hergertsynthora.com/snapshots.
Uptime
100.0%
133 direct probes · 30d
Response
131ms
last direct probe
Skills
26
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base USDC Verified live · 402 challenge Dispute or improve this rating
From $0.0300 per call
Endpoint Price Currency
https://api.hergertsynthora.com/v1/txintent 0.1 USDC
https://api.hergertsynthora.com/v1/fed-watch 0.03 USDC
https://api.hergertsynthora.com/v1/ecb-macro 0.03 USDC
https://api.hergertsynthora.com/v1/stablecoin-supply — USDC
https://api.hergertsynthora.com/v1/gdelt-tension — USDC
https://api.hergertsynthora.com/v1/volume-anomaly — USDC
https://api.hergertsynthora.com/v1/space-weather-risk — USDC
https://api.hergertsynthora.com/v1/who-gho-timeseries — USDC
https://api.hergertsynthora.com/v1/exchange-rates-verified — USDC
https://api.hergertsynthora.com/v1/usgs-earthquakes — USDC
https://api.hergertsynthora.com/v1/port-watch — USDC
https://api.hergertsynthora.com/v1/gas-oracle-multi — USDC
https://api.hergertsynthora.com/v1/historical-weather — USDC
https://api.hergertsynthora.com/v1/air-quality — USDC
https://api.hergertsynthora.com/v1/defi-yields — USDC
https://api.hergertsynthora.com/v1/payto-preflight — USDC
https://api.hergertsynthora.com/v1/polymarket-trades — USDC
https://api.hergertsynthora.com/v1/registry-watch — USDC
https://api.hergertsynthora.com/v1/defi-llama-tvl-ranking — USDC
https://api.hergertsynthora.com/v1/ecb-forex-fixing-vs-market — USDC
https://api.hergertsynthora.com/v1/top-crypto — USDC
https://api.hergertsynthora.com/v1/bitcoin-fees — USDC
https://api.hergertsynthora.com/v1/github-repo-activity — USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0xef879bfd6c4accb8f795136de90246e1ec245e06 on Base · basescan ↗
Listed by facilitators Coinbase CDP · 4 PayAI · 3
Observed on-chain inflow verified on-chain
Last 7d
$0.00
0 transfers · synced 2026-10-24
Last 30d
$1.77
82 transfers · synced 2026-10-24
Last 90d PRO
Unlock with Pro
90-day total + 90 days of daily history
USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the wallet. Inflow to a wallet, not proof that every transfer was a paid call.
How the last 30 days were settled
x402-settled: $0.01 (100%) · 1 transfer sent by a known x402 facilitator (Coinbase)
Other: $0.00 plain transfers sent by the payer · $0.00 other contract calls · 1% of $1.71 classified so far. How we classify
Cross-check: Coinbase's Bazaar reports 5 calls in 30 days to this wallet; our ledger observed 80 transfers (1 facilitator-settled) over 29 of 30 scanned days. Different counters; neither is assumed correct.
Daily 30-day observed-inflow history ↓ −$0.06 since 2026-09-25
2026-09-25 2026-10-25
Last 30 days · 90 days with Pro Peak 30-day total: $3.02 Data points: 31 Total tx (30d window): 82
Payment authenticity evidence confidence How we measure this →
independently_paid 5/5

Many distinct payers observed, low concentration, repeat demand, and no self-referential payment signal.

Assessed window
30d
15 active of 29 observed
Inflow assessed
$1.71
80 transactions
Payer identities
available
2 evidence caveats
shared_settlement_wallet — The settlement wallet is shared with other indexed agents, so inflow cannot be attributed to this agent alone.
Checks run: daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap, payer_uniqueness, payer_concentration, payer_recurrence, payer_payee_overlap. Derived from agent_revenue_daily, agents.payment_wallet, agent_payment_transactions. Measured 2026-10-25.
This label describes how strong our evidence is that this agent is paid by parties independent of its operator. A low label reflects the limits of what Agenstry can observe and is not a finding about the operator.
Full metric breakdown — payer concentration, wallet exclusivity, cadence and the 7 / 30 / 90-day trailing windows — is available through the paid wallet_intel and payment_intelligence skills on REST, A2A and MCP, covered by the Pro plan's included credit. API docs →
Agent cardhttps://api.hergertsynthora.com/.well-known/agent-card.json
Providerhttps://hergertsynthora.com
Docshttps://api.hergertsynthora.com/llms.txt
Discovered via
cdp_discovery registry agentic_market x402_list nanda_index manifests a2aregistry recrawl_hot a2a_registry_org

Skills · 26 declared by this agent

These skills are declared by the agent. A taxonomy link appears only when we can classify a skill confidently.

Air Quality

SYNTHORA air-quality: live air quality for any city or lat,lon — PM2.5/PM10/ozone/NO2, EU and US AQI, and a WHO-threshold operational verdict (good/moderate/har…

No taxonomy category yet
air-qualitypm25aqienvironmenthealth
Bitcoin Fees

SYNTHORA bitcoin-fees: Bitcoin fee tiers in sat/vB (fastest/half-hour/hour/economy/minimum) plus current block height. Source: mempool.space public API, keyless…

canonical Bitcoin Fee Estimation match 89%
bitcoinfeesmempoolrealtime
Defi Llama Tvl Ranking

SYNTHORA defi-llama-tvl-ranking: Top DeFi protocols by TVL with rank, chain, category and 1d/7d change, capped list (default 50, max 200 via {"limit":N}). Sourc…

canonical DeFi Protocol Metrics match 90%
defitvldefillamarankingrealtime
Defi Yields

SYNTHORA defi-yields: stablecoin DeFi yields ranked with a risk outlier detector — APY vs class median (>=3x median = the excess yield IS the risk price). Only …

canonical DeFi Protocol Metrics match 91%
defiyieldsapyriskstablecoins
Dnsdomain

Full DNS + WHOIS/RDAP domain report in one call. Resolves A, AAAA, MX, TXT, NS, CNAME, SOA and DNSSEC over DNS-over-HTTPS, plus structured WHOIS via RDAP (regis…

canonical Domain Registration Lookup match 89%
intelligencex402base
Doaj Article Search

Searches the Directory of Open Access Journals article index, returning titles, authors, DOIs, journal, ISSNs, abstracts and open-access full-text links as JSON…

No taxonomy category yet
intelligencex402base
Ecb Forex Fixing Vs Market

SYNTHORA ecb-forex-fixing-vs-market: Compare the official ECB daily EUR/USD reference fixing with a client-supplied USD-per-EUR quote, timestamp and provenance.…

canonical Foreign Exchange Rates match 89%
forexecbeur-usdfixing
Ecb Macro

SYNTHORA ecb-macro: official eurozone macro from the ECB data warehouse — HICP inflation, MRR policy rate, 10Y govt yield, each with previous value, change and …

No taxonomy category yet
ecbeurozoneinflationratesmacro
Exchange Rates Verified

SYNTHORA exchange-rates-verified: FX rates for 160+ currencies CROSS-VERIFIED between two independent sources (ECB official fixing via frankfurter.app vs market…

canonical Foreign Exchange Rates match 88%
fintechverificadomultifuentex402synthora
Fed Watch

SYNTHORA fed-watch: US reference-rate funding pulse — SOFR/EFFR/TGCR/BGCR/OBFR with volumes, percentile dispersion and the SOFR-EFFR spread (the funding-stress …

No taxonomy category yet
fedsofreffrmacrorates
Gas Oracle Multi

SYNTHORA gas-oracle-multi: gas price across 5 chains (ethereum, base, arbitrum, optimism, polygon), each VERIFIED by two independent public RPCs with divergence…

canonical Gas Fee Estimation match 87%
gasoraclemultichainethereumbase
Gdelt Tension

SYNTHORA gdelt-tension: geopolitical tension index for any topic/country — news-mention spike vs 7d baseline, average tone shift, escalation flag and the headli…

No taxonomy category yet
geopoliticsgdeltnewstensionpolymarket
Github Repo Activity

SYNTHORA github-repo-activity: Activity metrics for any public GitHub repo (input owner/repo): stars, forks, open issues, last push, language, archived flag. 10…

canonical Git Repository Operations match 86%
githubrepoactivitydev
Historical Weather

SYNTHORA historical-weather: verified historical weather for any place and date (1940 → ~5 days ago) from the ERA5 reanalysis — tmax/tmin, precipitation, max wi…

No taxonomy category yet
weatherhistoryera5climateverified
Npm Downloads Range

Returns a per-day download time series for an npm package over a period from keyless api.npmjs.org — the raw signal for trend and growth-rate detection. Lets au…

No taxonomy category yet
intelligencex402base
Payto Preflight

x402 PayTo Pre-Flight: verify a payTo address against the live registry before paying. Detects payTo hijacking, stale endpoints and unknown resources. Determini…

No taxonomy category yet
x402base
Polymarket Markets

Search prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call: live prices, implied probability, volume, liquidity, end date and market convictio…

canonical Prediction Market Odds match 95%
prediction-marketsoddscryptox402signed-verdict
Polymarket Trades

Historical Polymarket trade query with filters plus per-wallet aggregation. $0.03 USDC x402 Base.

canonical Prediction Market Odds match 89%
prediction-marketspolymarkettradessmart-moneywallet-tracking
Port Watch

SYNTHORA port-watch: daily port activity for any of 2,065 ports (Shanghai, Singapore, Rotterdam, LA, Long Beach presets + any name) — port calls, estimated impo…

No taxonomy category yet
shippingportsportwatchtrademacro
Registry Watch

Registry change history from stored registry_delta records, ordered by database timestamp and ID. Query with since (cursor or ISO8601), slug and limit (1..200).…

No taxonomy category yet
x402basefeed
Space Weather Risk

SYNTHORA space-weather-risk: composite operational space-weather risk verdict fusing 4 NOAA SWPC feeds (Kp/G scale, GOES X-ray flare class, solar wind, proton f…

No taxonomy category yet
scienceintelmultifuentex402synthora
Stablecoin Supply

SYNTHORA stablecoin-supply: circulating USD supply, price and peg deviation in basis points for the top stablecoins (USDT, USDC, DAI...), with a depeg alert fla…

No taxonomy category yet
defix402synthora
Top Crypto

SYNTHORA top-crypto: Top N cryptocurrencies by market cap (default 10, max 50): rank, price, 24h change, volume and market cap in USD. Source: CoinGecko free AP…

No taxonomy category yet
cryptomarket-capcoingeckorealtime
Usgs Earthquakes

SYNTHORA usgs-earthquakes: latest earthquakes (M>=4.5 default, tunable) with PAGER alert level, tsunami flag and ACTIVE SEISMIC CLUSTER detection (>=3 events sa…

No taxonomy category yet
scienceverificadomultifuentex402synthora
Volume Anomaly

SYNTHORA volume-anomaly: crypto volume-anomaly alerts for arbitrage bots — assets whose 24h turnover (volume/mcap) is anomalously high vs their cohort (z-score)…

No taxonomy category yet
cryptointelmultifuentex402synthora
Who Gho Indicator Timeseries

Returns WHO Global Health Observatory OData time series (ghoapi.azureedge.net/api) for an indicator such as life expectancy (WHOSIS_000001): country, year, sex …

No taxonomy category yet
intelligencex402base

Health · last 30 probes

When HTTP Live JSON-RPC Latency
2026-10-25 17:47:12 200 ✗ 131ms
2026-10-25 17:37:04 200 ✗ 52ms
2026-10-25 17:37:03 200 ✗ 47ms
2026-10-25 15:46:34 200 ✗ 32ms
2026-10-25 08:03:33 200 ✗ 31ms
2026-10-25 07:53:56 200 ✗ 28ms
2026-10-25 07:53:55 200 ✗ 37ms
2026-10-25 06:14:48 200 ✗ 21ms
2026-10-25 00:11:23 200 ✗ 40ms
2026-10-25 00:08:00 200 ✗ 88ms

Who's calling this agent 30d

24 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3
MJ12bot / Majestic (SEO tool) 22 (92%)
PerplexityBot (crawler) 1 (4%)
Web browser 1 (4%)
Caller geography · top 3
FR 15
UA 4
FI 3
Via which API surface · top 3
web 23
rest 1

Public view: top 3 per dimension. Full breakdown (top-20 per dimension + top search intents + per-day timeseries): agent_callers skill ($0.05/call, $0 on Enterprise). Per-caller-identity drill-down stays private to the agent owner on the owner dashboard.

Cheaper or better alternatives per-skill

↓ 7 skills cheaper elsewhere ↑ 7 higher quality peak save 96.7%

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

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SYNTHORA defi-yields
SYNTHORA defi-yields: stablecoin DeFi yields ranked with a risk outlier detector — APY vs class median (>=3x median = the excess yield IS th
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SYNTHORA defi-llama-tvl-ranking
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Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/api.hergertsynthora.com.svg)](https://agenstry.com/agents/api.hergertsynthora.com)
[![Verified Business](https://agenstry.com/badge/api.hergertsynthora.com/identity.svg)](https://agenstry.com/agents/api.hergertsynthora.com)
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[![A2A version](https://agenstry.com/badge/api.hergertsynthora.com/protocol.svg)](https://agenstry.com/agents/api.hergertsynthora.com)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON
{
  "protocolVersion": "1.0",
  "name": "SYNTHORA \u2014 M2M Intelligence Mesh",
  "description": "SYNTHORA provides signed, pay-per-call intelligence products for autonomous agents over x402 on Base. The product list is generated from the current discoverable registry.",
  "url": "https://api.hergertsynthora.com/a2a",
  "provider": {
    "organization": "SYNTHORA",
    "url": "https://hergertsynthora.com"
  },
  "iconUrl": "https://hergertsynthora.com/logo.png",
  "version": "2.0.0",
  "documentationUrl": "https://api.hergertsynthora.com/llms.txt",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "supportsAuthenticatedExtendedCard": false,
  "skills": [
    {
      "id": "air-quality",
      "name": "Air Quality",
      "description": "SYNTHORA air-quality: live air quality for any city or lat,lon \u2014 PM2.5/PM10/ozone/NO2, EU and US AQI, and a WHO-threshold operational verdict (good/moderate/harmful). Source: open-meteo Air Quality (CAMS/ESA Copernicus), free, no key. $0.01 USDC x402 Base.",
      "tags": [
        "air-quality",
        "pm25",
        "aqi",
        "environment",
        "health",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/air-quality",
        "price_usdc": 0.01,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "bitcoin-fees",
      "name": "Bitcoin Fees",
      "description": "SYNTHORA bitcoin-fees: Bitcoin fee tiers in sat/vB (fastest/half-hour/hour/economy/minimum) plus current block height. Source: mempool.space public API, keyless. Bitcoin only.",
      "tags": [
        "bitcoin",
        "fees",
        "mempool",
        "realtime"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/bitcoin-fees",
        "price_usdc": 0.01,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "defi-llama-tvl-ranking",
      "name": "Defi Llama Tvl Ranking",
      "description": "SYNTHORA defi-llama-tvl-ranking: Top DeFi protocols by TVL with rank, chain, category and 1d/7d change, capped list (default 50, max 200 via {\"limit\":N}). Source: api.llama.fi/protocols (DefiLlama), keyless, timestamped.",
      "tags": [
        "defi",
        "tvl",
        "defillama",
        "ranking",
        "realtime"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/defi-llama-tvl-ranking",
        "price_usdc": 0.01,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "defi-yields",
      "name": "Defi Yields",
      "description": "SYNTHORA defi-yields: stablecoin DeFi yields ranked with a risk outlier detector \u2014 APY vs class median (>=3x median = the excess yield IS the risk price). Only pools with TVL >= $10M. Source: DefiLlama, free, no key. $0.01 USDC x402 Base.",
      "tags": [
        "defi",
        "yields",
        "apy",
        "risk",
        "stablecoins",
        "verified",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/defi-yields",
        "price_usdc": 0.01,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "dnsdomain",
      "name": "Dnsdomain",
      "description": "Full DNS + WHOIS/RDAP domain report in one call. Resolves A, AAAA, MX, TXT, NS, CNAME, SOA and DNSSEC over DNS-over-HTTPS, plus structured WHOIS via RDAP (registrar, registration/expiration/updated dates, EPP status, nameservers), and returns a 0-100 domain-hygiene score with letter grade (age, days-to-expiry, nameserver redundancy, MX presence, DNSSEC, SPF/DMARC, registrar lock). Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet \u2014 send header 'X-WALLET: 0x<your Base address>' (no payment); then 0.001 USDC per call.",
      "tags": [
        "intelligence",
        "x402",
        "base"
      ],
      "x402": {
        "endpoint": "https://dnsdomain.hergertsynthora.com/service",
        "price_usdc": 0.001,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "doaj-article-search",
      "name": "Doaj Article Search",
      "description": "Searches the Directory of Open Access Journals article index, returning titles, authors, DOIs, journal, ISSNs, abstracts and open-access full-text links as JSON. A keyless endpoint for autonomous research agents and agent-to-agent workflows sourcing legally free, peer-reviewed open-access literature. First 3 calls FREE per wallet \u2014 send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "tags": [
        "intelligence",
        "x402",
        "base"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/doaj-article-search",
        "price_usdc": 0.005,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "ecb-forex-fixing-vs-market",
      "name": "Ecb Forex Fixing Vs Market",
      "description": "SYNTHORA ecb-forex-fixing-vs-market: Compare the official ECB daily EUR/USD reference fixing with a client-supplied USD-per-EUR quote, timestamp and provenance. Reports deviation in basis points and coverage/freshness gaps. The client quote is not independently verified. No live market quote is supplied or inferred; this commercial path does not redistribute open.er-api rates.",
      "tags": [
        "forex",
        "ecb",
        "eur-usd",
        "fixing"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/ecb-forex-fixing-vs-market",
        "price_usdc": 0.01,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "ecb-macro",
      "name": "Ecb Macro",
      "description": "SYNTHORA ecb-macro: official eurozone macro from the ECB data warehouse \u2014 HICP inflation, MRR policy rate, 10Y govt yield, each with previous value, change and direction. For macro/rates agents and prediction markets. Official free source, no key. $0.03 USDC x402 Base.",
      "tags": [
        "ecb",
        "eurozone",
        "inflation",
        "rates",
        "macro",
        "official",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/ecb-macro",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "exchange-rates-verified",
      "name": "Exchange Rates Verified",
      "description": "SYNTHORA exchange-rates-verified: FX rates for 160+ currencies CROSS-VERIFIED between two independent sources (ECB official fixing via frankfurter.app vs market aggregate open.er-api.com) with per-currency deviation in bps and divergence alert >50 bps. The product is the discrepancy: a bad rate breaks a financial agent. Free sources, no key. $0.03 USDC x402 Base.",
      "tags": [
        "fintech",
        "verificado",
        "multifuente",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/exchange-rates-verified",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "fed-watch",
      "name": "Fed Watch",
      "description": "SYNTHORA fed-watch: US reference-rate funding pulse \u2014 SOFR/EFFR/TGCR/BGCR/OBFR with volumes, percentile dispersion and the SOFR-EFFR spread (the funding-stress signal before it hits the news). Cross-check of 5 independent official NY Fed series. The input for Fed/CPI prediction markets. Free official source, no key. $0.03 USDC x402 Base.",
      "tags": [
        "fed",
        "sofr",
        "effr",
        "macro",
        "rates",
        "polymarket",
        "verified",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/fed-watch",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "gas-oracle-multi",
      "name": "Gas Oracle Multi",
      "description": "SYNTHORA gas-oracle-multi: gas price across 5 chains (ethereum, base, arbitrum, optimism, polygon), each VERIFIED by two independent public RPCs with divergence report \u2014 a single RPC can lie or lag; dual-verified is what you time transactions with. Free public RPCs, no key. $0.03 USDC x402 Base.",
      "tags": [
        "gas",
        "oracle",
        "multichain",
        "ethereum",
        "base",
        "verified",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/gas-oracle-multi",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "gdelt-tension",
      "name": "Gdelt Tension",
      "description": "SYNTHORA gdelt-tension: geopolitical tension index for any topic/country \u2014 news-mention spike vs 7d baseline, average tone shift, escalation flag and the headlines causing it. The early signal for Polymarket geopolitical markets (high variance, high spread). Source: GDELT DOC 2.0 (100+ languages, free, no key), 6h-prefetched cache for reliability.",
      "tags": [
        "geopolitics",
        "gdelt",
        "news",
        "tension",
        "polymarket",
        "osint",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/gdelt-tension",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "github-repo-activity",
      "name": "Github Repo Activity",
      "description": "SYNTHORA github-repo-activity: Activity metrics for any public GitHub repo (input owner/repo): stars, forks, open issues, last push, language, archived flag. 10-min in-process cache, stale-on-rate-limit or ok:false. Source: api.github.com, keyless.",
      "tags": [
        "github",
        "repo",
        "activity",
        "dev"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/github-repo-activity",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "historical-weather",
      "name": "Historical Weather",
      "description": "SYNTHORA historical-weather: verified historical weather for any place and date (1940 \u2192 ~5 days ago) from the ERA5 reanalysis \u2014 tmax/tmin, precipitation, max wind. For climate-market backtesting and claim verification. Source: open-meteo archive, free, no key. $0.03 USDC x402 Base.",
      "tags": [
        "weather",
        "history",
        "era5",
        "climate",
        "verified",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/historical-weather",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "npm-downloads-range",
      "name": "Npm Downloads Range",
      "description": "Returns a per-day download time series for an npm package over a period from keyless api.npmjs.org \u2014 the raw signal for trend and growth-rate detection. Lets autonomous agents compute momentum/decline and feed agent-to-agent dependency-selection scoring. Ranking surface for trajectory. First call FREE per wallet \u2014 send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "tags": [
        "intelligence",
        "x402",
        "base"
      ],
      "x402": {
        "endpoint": "https://npm-downloads-range.hergertsynthora.com/service",
        "price_usdc": 0.001,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "payto-preflight",
      "name": "Payto Preflight",
      "description": "x402 PayTo Pre-Flight: verify a payTo address against the live registry before paying. Detects payTo hijacking, stale endpoints and unknown resources. Deterministic, <200ms, no external network. 0.01 USDC via x402 on Base. SYNTHORA.",
      "tags": [
        "x402",
        "base"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/payto-preflight",
        "price_usdc": 0.01,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "polymarket-markets",
      "name": "Polymarket Markets",
      "description": "Search prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call: live prices, implied probability, volume, liquidity, end date and market conviction. Server-side search that actually finds the market (bitcoin, fed, election, geopolitics). For trading and forecasting agents tracking event odds. $0.05 USDC x402 Base. Input: {\"input\": \"bitcoin\"} (optional filter). Ed25519-signed.",
      "tags": [
        "prediction-markets",
        "odds",
        "crypto",
        "x402",
        "signed-verdict",
        "usdc"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/polymarket-markets",
        "price_usdc": 0.05,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "polymarket-trades",
      "name": "Polymarket Trades",
      "description": "Historical Polymarket trade query with filters plus per-wallet aggregation. $0.03 USDC x402 Base.",
      "tags": [
        "prediction-markets",
        "polymarket",
        "trades",
        "smart-money",
        "wallet-tracking",
        "flow",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/polymarket-trades",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "port-watch",
      "name": "Port Watch",
      "description": "SYNTHORA port-watch: daily port activity for any of 2,065 ports (Shanghai, Singapore, Rotterdam, LA, Long Beach presets + any name) \u2014 port calls, estimated import/export capacity (dwt), 7d moving average vs 30d baseline deviation and anomaly flag. Port volume leads official macro data by weeks: the input for trade/tariff/recession markets. Source: IMF PortWatch (satellite AIS, free, no key). $0.03 USDC x402 Base.",
      "tags": [
        "shipping",
        "ports",
        "portwatch",
        "trade",
        "macro",
        "polymarket",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/port-watch",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "registry-watch",
      "name": "Registry Watch",
      "description": "Registry change history from stored registry_delta records, ordered by database timestamp and ID. Query with since (cursor or ISO8601), slug and limit (1..200). Source timestamps and coverage are included; records may be historical and do not prove current endpoint operation, payments or identity. 0.03 USDC on Base.",
      "tags": [
        "x402",
        "base",
        "feed"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/registry-watch",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "space-weather-risk",
      "name": "Space Weather Risk",
      "description": "SYNTHORA space-weather-risk: composite operational space-weather risk verdict fusing 4 NOAA SWPC feeds (Kp/G scale, GOES X-ray flare class, solar wind, proton flux) \u2014 for defense, aviation, satellites, power grid, precision GPS. $0.03 USDC x402 Base.",
      "tags": [
        "science",
        "intel",
        "multifuente",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/space-weather-risk",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "stablecoin-supply",
      "name": "Stablecoin Supply",
      "description": "SYNTHORA stablecoin-supply: circulating USD supply, price and peg deviation in basis points for the top stablecoins (USDT, USDC, DAI...), with a depeg alert flag above 50 bps. Optional symbol filter. Free source: stablecoins.llama.fi (DefiLlama), no API key, timestamped.",
      "tags": [
        "defi",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/stablecoin-supply",
        "price_usdc": 0.01,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "top-crypto",
      "name": "Top Crypto",
      "description": "SYNTHORA top-crypto: Top N cryptocurrencies by market cap (default 10, max 50): rank, price, 24h change, volume and market cap in USD. Source: CoinGecko free API, keyless, timestamped.",
      "tags": [
        "crypto",
        "market-cap",
        "coingecko",
        "realtime"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/top-crypto",
        "price_usdc": 0.01,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "usgs-earthquakes",
      "name": "Usgs Earthquakes",
      "description": "SYNTHORA usgs-earthquakes: latest earthquakes (M>=4.5 default, tunable) with PAGER alert level, tsunami flag and ACTIVE SEISMIC CLUSTER detection (>=3 events same zone in 24h) \u2014 the actionable signal for insurance-risk and disaster prediction markets. Source: USGS FDSN (official US, real-time, no key). $0.03 USDC x402 Base.",
      "tags": [
        "science",
        "verificado",
        "multifuente",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/usgs-earthquakes",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "volume-anomaly",
      "name": "Volume Anomaly",
      "description": "SYNTHORA volume-anomaly: crypto volume-anomaly alerts for arbitrage bots \u2014 assets whose 24h turnover (volume/mcap) is anomalously high vs their cohort (z-score), early pump/unusual-activity signal. Composite of CoinGecko markets + DeFiLlama DEX volume. Keyless. $0.03 USDC x402 Base.",
      "tags": [
        "crypto",
        "intel",
        "multifuente",
        "x402",
        "synthora"
      ],
      "x402": {
        "endpoint": "https://api.hergertsynthora.com/v1/volume-anomaly",
        "price_usdc": 0.03,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    },
    {
      "id": "who-gho-indicator-timeseries",
      "name": "Who Gho Indicator Timeseries",
      "description": "Returns WHO Global Health Observatory OData time series (ghoapi.azureedge.net/api) for an indicator such as life expectancy (WHOSIS_000001): country, year, sex dimension and numeric value. Autonomous agents and agent-to-agent (A2A) global-health analytics, ESG and country-benchmarking pipelines query it for authoritative WHO statistics. Ranking surface: indicator + country to yearly values. First 3 calls FREE per wallet \u2014 send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "tags": [
        "intelligence",
        "x402",
        "base"
      ],
      "x402": {
        "endpoint": "https://who-gho-indicator-timeseries.hergertsynthora.com/service",
        "price_usdc": 0.001,
        "network": "eip155:8453",
        "asset": "USDC",
        "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167"
      }
    }
  ],
  "x402": {
    "protocol": "x402",
    "network": "eip155:8453",
    "asset": "USDC",
    "assetAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
    "facilitator": "coinbase-cdp",
    "gateway": "https://api.hergertsynthora.com/v1/{skill-id}",
    "manifest": "https://api.hergertsynthora.com/.well-known/x402.json"
  },
  "mcp": {
    "endpoint": "https://mcp.hergertsynthora.com/mcp",
    "transport": "streamable-http",
    "serverCard": "https://mcp.hergertsynthora.com/.well-known/mcp/server-card.json"
  },
  "registrations": [
    "eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432/84581"
  ],
  "date_updated": "2026-10-18T03:47:02Z"
}