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📊 Intel view 📋 Audit JSON 🔄 Changelog
22
💰 Paid API data

usaref.dev

usaref.dev · usaref.dev

North and Central American government reference data as clean, cited JSON: central-bank policy rates, VAT and sales tax, corporate and personal income tax, minimum wages, CPI inflation, official FX fixes and public holidays across 10 countries. Every value returns with the official source URL it was verified against, the date it took effect and the date we last checked it, so an answer can be audited rather than trusted. Each series also declares how it was obtained — GET /catalog?confidence=primary returns only values with no recorded verification limitation. Out-of-scope questions are refused free, with an explanation, rather than guessed. Includes sub-national public-holiday calendars for 10 US states and all 13 Canadian provinces and territories, each cited to that jurisdiction's own s

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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
1 thing in this card we could not use
Everything else was indexed. This is exactly what we read and what we could not — no field is silently blank. Fix the card at https://usaref.dev/.well-known/agent-card.json and the next probe clears this panel.
Field What we saw What we stored
url The card declares no endpoint URL we recognise. A2A v1.0 puts it in supportedInterfaces[].url; v0.x used a top-level url. Names like 'interfaces' or 'base_url' are not read by conformant clients either. dropped — we read the card but cannot list this agent as callable
Trust score
22/100
grade F · 3 of 9 criteria apply
Uptime
not graded
catalogue listing · no agent card to probe
Observed inflow · 30d
$6.23
119 tx · on-chain
Invocations · 7d
0
1 listing impression — no calls
Listing drift · 7d
stable
0 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 22/100
Catalogue listing, not an A2A agent: a paid API listed by agentic.market. Scored on the 3 criteria that apply (9 of 40 points, scaled to 100); the A2A card criteria do not apply.
click to expand breakdown ▾ click to collapse breakdown ▴
n/a Agent card n/a
Not applicable: a paid API listed by agentic.market. The host serves no A2A agent card at /.well-known/agent-card.json, so the card criteria are not scored.
fail Live endpoint 0/25
No response from the host observed: listed by agentic.market only, not confirmed by our own probe.
n/a Protocol version n/a
Not applicable: no A2A agent card served.
n/a JWS signature n/a
Not applicable: no A2A agent card served.
n/a Uptime track record n/a
Not applicable: our 17 probes in 30 days looked for an A2A agent card, which this host does not serve. That says nothing about the API's availability, so it is not graded.
n/a Skill declaration n/a
Not applicable: no A2A agent card served.
partial Verified Identity 5/10
Provider declared: usaref.dev (https://usaref.dev). 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 4/5
seen in upstream source within 0d
n/a Security declaration n/a
Not applicable: no A2A agent card served.

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
1
impressions 7d
appeared in a result list
Per event type (7d)
1
search_impression
Recent events (last 20)
When Event Method Status Latency
2026-10-05T12:32:01 search_impression — 200 ok —
2026-09-30T06:43:55 search_impression — 200 ok —
2026-09-30T06:43:29 search_impression — 200 ok —
2026-09-26T00:17:06 search_impression — 200 ok —
2026-09-16T19:52:04 search_impression — 200 ok —
Uptime
not graded
catalogue listing · no agent card to probe
Response
781ms
last direct probe
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base per call USDC Facilitator feed Dispute or improve this rating
From $0.0010 per call
Endpoint Price Currency
https://usaref.dev/v1/:country/:series 0.005 USDC
https://usaref.dev/v1/:country/:series/history 0.001 USDC
https://usaref.dev/v1/all 0.02 USDC
https://usaref.dev/v1/answers/working-days 0.02 USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0x1f0409ccd20a2fb497d4decef4e17e9d0688fea6 on Base · basescan ↗
Listed by facilitators Coinbase CDP · 11
Observed on-chain inflow verified on-chain
Last 7d
$0.03
6 transfers · synced 2026-10-06
Last 30d
$6.23
119 transfers · synced 2026-10-06
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: $0.02 (100%) · 1 transfer sent by a known x402 facilitator (Coinbase)
Other: $0.00 plain transfers sent by the payer · $0.00 other contract calls · 0% of $6.23 classified so far. How we classify
Cross-check: Coinbase's Bazaar reports 102 calls in 30 days to this wallet across 76 listed resources; our ledger observed 119 transfers (1 facilitator-settled) over 28 of 30 scanned days. Different counters; neither is assumed correct.
Daily 30-day observed-inflow history new
2026-09-08 2026-10-08
Last 30 days · 90 days with Pro Peak 30-day total: $6.30 Data points: 28 Total tx (30d window): 119
Payment authenticity evidence confidence How we measure this →
single_payer_observed 2/5

Payer identities observed; a single payer accounts for effectively all observed volume.

Assessed window
30d
17 active of 28 observed
Inflow assessed
$6.23
119 transactions
Payer identities
available
3 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 2026-10-08.
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://usaref.dev/.well-known/agent-card.json
Providerhttps://usaref.dev
Docshttps://usaref.dev
Discovered via
agentic_market mcp_registry x402_list recrawl_hot recrawl_warm

Health · last 17 probes

When HTTP Live JSON-RPC Latency
2026-10-07 22:00:11 200 — 781ms
2026-10-07 14:55:33 200 — 738ms
2026-10-07 06:01:19 200 — 725ms
2026-10-06 18:53:48 200 — 4307ms
2026-10-05 15:05:36 200 — 740ms
2026-10-05 00:47:22 200 — 780ms
2026-10-04 18:07:07 200 — 730ms
2026-10-04 10:10:06 200 — 731ms
2026-10-04 04:53:05 200 — 763ms
2026-10-03 22:18:50 200 — 756ms

Who's calling this agent 30d

5 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3
Node fetch 2 (40%)
curl 2 (40%)
ChatGPT (browse) 1 (20%)
Caller geography · top 3
FR 3
US 1
GB 1
Via which API surface · top 3
rest 5

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.

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Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/usaref.dev.svg)](https://agenstry.com/agents/usaref.dev)
[![Verified Business](https://agenstry.com/badge/usaref.dev/identity.svg)](https://agenstry.com/agents/usaref.dev)
[![Uptime](https://agenstry.com/badge/usaref.dev/uptime.svg)](https://agenstry.com/agents/usaref.dev)
[![A2A version](https://agenstry.com/badge/usaref.dev/protocol.svg)](https://agenstry.com/agents/usaref.dev)

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 
{
  "_source": "agentic.market",
  "service": {
    "id": "usaref-dev",
    "name": "usaref.dev",
    "description": "",
    "domain": "usaref.dev",
    "provider": "usaref.dev",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://usaref.dev/v1/:country/:series",
        "description": "Government reference data series",
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "path",
            "name": "country",
            "type": "string",
            "description": "",
            "example": "ca",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "path",
            "name": "series",
            "type": "string",
            "description": "",
            "example": "policy-rate",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [
          "reference-data",
          "central-bank",
          "interest-rates",
          "vat",
          "tax"
        ],
        "quality": null
      },
      {
        "url": "https://usaref.dev/v1/:country/:series/history",
        "description": "Government reference data series",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "path",
            "name": "country",
            "type": "string",
            "description": "",
            "example": "us",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "path",
            "name": "series",
            "type": "string",
            "description": "",
            "example": "policy-rate",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [
          "reference-data",
          "central-bank",
          "interest-rates",
          "vat",
          "tax"
        ],
        "quality": null
      },
      {
        "url": "https://usaref.dev/v1/all",
        "description": "Snapshot of every series, all countries",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [],
        "serviceName": "",
        "tags": [
          "reference-data",
          "central-bank",
          "interest-rates",
          "vat",
          "tax"
        ],
        "quality": null
      },
      {
        "url": "https://usaref.dev/v1/answers/working-days",
        "description": "Working days in a date range: weekends + public holidays applied, next working day",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "country",
            "type": "string",
            "description": "",
            "example": "ca",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "from",
            "type": "string",
            "description": "",
            "example": "2026-08-01",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "to",
            "type": "string",
            "description": "",
            "example": "2026-08-31",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [
          "reference-data",
          "central-bank",
          "interest-rates",
          "vat",
          "tax"
        ],
        "quality": null
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.001",
      "maxAmount": "0.02",
      "avgCostPerTransaction": "0.0115",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "",
    "tags": [
      "reference-data",
      "central-bank",
      "interest-rates",
      "vat",
      "tax"
    ],
    "iconUrl": ""
  }
}