💰 Paid API

Chainsscope

chainsscope.duckdns.org · chainsscope.duckdns.org

Current network fee conditions -- gas price (ETH/Base/Arbitrum/Optimism/Polygon), sat/vB fee tiers (Bitcoin), or recent prioritization fees (Solana) -- useful for an agent about to construct a transaction itself.

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Verify the domain chainsscope.duckdns.org 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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🔔 Watch this agent. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch

Our probe of this card is currently failing — 404 not found

We tried /.well-known/agent-card.json and got a 404. Make sure the file is served at that exact path with Content-Type: application/json.

      
        Last attempt: 2026-08-19 08:18
      
        Last success: 2026-08-19
      
        Status: 404

Raw error

HTTP 404

Trust score

34/100

grade F · 9 criteria

Uptime

0.0%

29 direct probes · 30d

Observed inflow · 30d

Dispute or improve this rating

F

Conformance score: 34/100

F-grade: card is reachable but fails most operational signals.

click to expand breakdown ▾ click to collapse breakdown ▴

pass Valid AgentCard 10/10

Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).

partial Live JSON-RPC 15/25

Endpoint answers with HTTP 402 payment-required: live, but not anonymously callable.

            How to earn +10 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.

Docs →

fail Protocol version 0/10

No protocolVersion in card.

            How to earn +10 points
          

Declare protocolVersion

Add `"protocolVersion": "1.0"` 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).

fail Uptime track record 0/15

0/29 probes succeeded (0% uptime).

            How to earn +15 points
          

Stabilise uptime

We probe every agent on a tiered schedule. Sustained 99 %+ uptime over 20+ checks scores full points. Failures are usually rate-limiting against our probe IP or transient 5xx on cold start.

Docs →

fail Skill declaration 0/10

No skills declared in card. Hard to route to.

            How to earn +10 points
          

Declare your skills

Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.

Docs →

partial Verified Identity 5/10

Provider declared: chainsscope.duckdns.org (https://chainsscope.duckdns.org/). 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

info Security declaration 0/5

Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Uptime

0.0%

29 direct probes · 30d

Response

—

last direct probe

Skills

declared

Streaming

—

SSE-capable

Endpoints

Pricing x402 on Base per call USDC Facilitator feed Dispute or improve this rating

From $0.0020 per call

Endpoint	Price	Currency
`https://chainsscope.duckdns.org/tools/address-activity`	0.004	USDC
`https://chainsscope.duckdns.org/tools/contract-inspect`	0.003	USDC
`https://chainsscope.duckdns.org/tools/ens-resolve`	0.01	USDC
`https://chainsscope.duckdns.org/tools/fee-estimate`	0.01	USDC
`https://chainsscope.duckdns.org/tools/token-holdings`	0.003	USDC
`https://chainsscope.duckdns.org/tools/wallet-balance`	0.002	USDC
`https://chainsscope.duckdns.org/tools/wallet-balance/batch`	0.012	USDC
`https://chainsscope.duckdns.org/tools/wallet-scan`	0.04	USDC

Try it ↗ Opens the operator's playground / docs in a new tab.

Settlement wallet: 0x1f5f8474fa0dc1fde79187abd68ef8ea15adae34 · basescan ↗

Observed on-chain inflow verified on-chain

Last 7d

                  $0.14
                

7 calls

Last 30d

                  $0.14
                

7 calls

USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the payment wallet.

Daily 30-day observed-inflow history ~ flat (+0.0%)

2026-08-08 2026-08-19

Peak day: $0.14 Data points: 12 Total tx (30d window): 7

Payment authenticity evidence confidence How we measure this →

concentrated_payers 3/5

Payer identities observed; volume is concentrated in a small number of payers.

Assessed window

30d

2 active of 7 observed

Inflow assessed

$0.14

7 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 2026-08-19.

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 get_agent_full and payment_intelligence skills on REST, A2A and MCP. API docs →

Agent card	`https://chainsscope.duckdns.org/.well-known/agent-card.json`
Provider	https://chainsscope.duckdns.org/
Docs	https://chainsscope.duckdns.org

Discovered via

agentic_market mcp_registry cdp_discovery

Health · last 29 probes

When	HTTP	Live JSON-RPC	Latency
2026-08-19 08:18:34	404	—	—
2026-08-18 17:40:09	404	—	—
2026-08-18 06:56:11	404	—	—
2026-08-17 23:26:51	404	—	—
2026-08-17 07:39:56	404	—	—
2026-08-16 19:27:28	404	—	—
2026-08-16 06:42:01	404	—	—
2026-08-16 01:08:40	404	—	—
2026-08-15 08:50:55	404	—	—
2026-08-14 23:54:39	404	—	—

Who's calling this agent 30d

1 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3

curl 1 (100%)

Caller geography · top 3

NL 1

Via which API surface · top 3

rest 1

Public teaser: top-3 per dimension only. 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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Signals

Gas fee snapshot for Base (and Ethereum when configured): maxFeePerGas and maxPriorityFeePerGas in gwei. Use before submitting an EVM transa

        signals.edge.report · q 70%
      

base-gas-x402-production.up.railway.app

Live Base mainnet gas: EIP-1559 base fee, low/medium/high priority tiers in gwei, and a transaction cost estimate for any gas limit.

        base-gas-x402-production.up.railway.app · q 65%
      

evm-gas.apitoll.cloud

Returns current EVM gas fee tiers (slow, standard, fast) as EIP-1559 maxFeePerGas and maxPriorityFeePerGas in wei, plus base fee, head block

        evm-gas.apitoll.cloud · q 100%
      

rh-chain-intel.vercel.app

Live network health of Robinhood Chain (Ethereum L2 on Arbitrum): latest block, average block time, gas prices, total/today transactions, to

        rh-chain-intel.vercel.app · q 65%
      

Organiccryptoyyc

Geolocate an IPv4 or IPv6 address: country, region, city, lat/long, timezone, ISP/ASN, and proxy flag.

        organiccryptoyyc.com · q 70%
      

api.nexismvp.com

Audit real gas spend across up to 20 Base mainnet transaction hashes you provide — total/average gas used, cost in ETH, per-tx breakdown. PO

        api.nexismvp.com · q 0%
      

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Markdown / HTML snippets

[![Agenstry grade](https://agenstry.com/badge/chainsscope.duckdns.org.svg)](https://agenstry.com/agents/chainsscope.duckdns.org)
[![Verified Business](https://agenstry.com/badge/chainsscope.duckdns.org/identity.svg)](https://agenstry.com/agents/chainsscope.duckdns.org)
[![Uptime](https://agenstry.com/badge/chainsscope.duckdns.org/uptime.svg)](https://agenstry.com/agents/chainsscope.duckdns.org)
[![A2A version](https://agenstry.com/badge/chainsscope.duckdns.org/protocol.svg)](https://agenstry.com/agents/chainsscope.duckdns.org)

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": "cdp_discovery",
  "resource_count": 8,
  "sample": "https://chainsscope.duckdns.org/tools/fee-estimate"
}

Activity (audit trail)

Endpoints

Health · last 29 probes

Who's calling this agent 30d

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Audit-grade evidence bundle

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