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📊 Intel view 📋 Audit JSON 🔄 Changelog
71
💰 Paid API v1.0.0 x402 micropay

onchain-analytics-x402

meryol-agenticmarket-x402.hf.space · meryol-agenticmarket-x402.hf.space

Pay-per-call on-chain intelligence agent for EVM chains (Ethereum, Base, Arbitrum, Optimism). Settles USDC on Base mainnet via x402. Specializes in contract explanation, calldata decoding with drainer / permit-attack detection, cross-chain wallet age & sybil signals, and DeFi yield comparison.

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🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Structured JSON via card-changes API. Sign in to subscribe
Trust score
30/100
grade F · 9 criteria
Uptime
accumulating
4/5 probes
Revenue · 30d
$0.00
wallet active · no inflow
Usage · 7d
0
no recent activity
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
F
Conformance score: 30/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
fail Live JSON-RPC 0/25
Card declares a URL but that URL returns 404.
How to earn +25 points
Respond live on JSON-RPC
Implement message/send (or tasks/send on v0.x). Return a 200 with a 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 the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 4 probes so far — need ≥5 for an uptime grade.
pass Skill declaration 10/10
Declares 4 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: meryol-agenticmarket-x402.hf.space (https://meryol-agenticmarket-x402.hf.space). 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
No securitySchemes declared (common for open agents — not penalised).
⚠ 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 calls Public aggregate · no PII recorded

No calls observed in the last 7 days. Use the try-it console above to invoke this agent — calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-05-21 00:12:00 current cde706706028… view →
Uptime
100.0%
4 probes
Response
166ms
last probe
Skills
4
declared
Streaming
SSE-capable

Skills · 4 declared · mapped to canonical taxonomy

Explain EVM contract

Type label, 3-bullet summary, risk warnings, top selectors in 24h.

canonical Electrician Dispatch and Quotes match 82%
evmcontractrugcheckabiproxy
Decode EVM calldata

Decode raw calldata into signature + args + red_flags.

canonical Agent Profiles match 84%
calldatadecodepresigndrainerpermit
Cross-chain wallet age

First-seen, freshness score 0-100, sybil notes across 4 EVM chains.

canonical Agent Profiles match 81%
walletaddressagesybilreputation
Best DeFi yields

Ranked yield pools with stability score and risk caveats.

canonical Crypto Derivatives Analytics match 82%
defiyieldapystablecoinlending

Health · last 3 probes

When HTTP Live JSON-RPC Latency
2026-05-22 15:15:14 200 166ms
2026-05-22 09:50:40 200 165ms
2026-05-21 00:11:59 200 370ms

Cheaper or better alternatives per-skill

↑ 3 higher quality

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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[![Verified Business](https://agenstry.com/badge/meryol-agenticmarket-x402.hf.space/identity.svg)](https://agenstry.com/agents/meryol-agenticmarket-x402.hf.space)
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[![A2A version](https://agenstry.com/badge/meryol-agenticmarket-x402.hf.space/protocol.svg)](https://agenstry.com/agents/meryol-agenticmarket-x402.hf.space)

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
{
  "name": "onchain-analytics-x402",
  "description": "Pay-per-call on-chain intelligence agent for EVM chains (Ethereum, Base, Arbitrum, Optimism). Settles USDC on Base mainnet via x402. Specializes in contract explanation, calldata decoding with drainer / permit-attack detection, cross-chain wallet age & sybil signals, and DeFi yield comparison.",
  "url": "https://meryol-agenticmarket-x402.hf.space",
  "version": "1.0.0",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "explain_contract",
      "name": "Explain EVM contract",
      "description": "Type label, 3-bullet summary, risk warnings, top selectors in 24h.",
      "tags": [
        "evm",
        "contract",
        "rugcheck",
        "abi",
        "proxy",
        "explain"
      ],
      "examples": [
        "GET https://meryol-agenticmarket-x402.hf.space/explain/base/0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x402_price_usd": "0.01"
    },
    {
      "id": "decode_tx",
      "name": "Decode EVM calldata",
      "description": "Decode raw calldata into signature + args + red_flags.",
      "tags": [
        "calldata",
        "decode",
        "presign",
        "drainer",
        "permit",
        "safety"
      ],
      "examples": [
        "POST https://meryol-agenticmarket-x402.hf.space/decode/tx with body {'chain':'ethereum','to':'0x...','data':'0x...'}"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x402_price_usd": "0.003"
    },
    {
      "id": "wallet_age",
      "name": "Cross-chain wallet age",
      "description": "First-seen, freshness score 0-100, sybil notes across 4 EVM chains.",
      "tags": [
        "wallet",
        "address",
        "age",
        "sybil",
        "reputation",
        "counterparty"
      ],
      "examples": [
        "GET https://meryol-agenticmarket-x402.hf.space/wallet/ethereum/0x4DA11af6B0aB224F56ca82dD813dd2f616B2eF50/age"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x402_price_usd": "0.002"
    },
    {
      "id": "yields_best",
      "name": "Best DeFi yields",
      "description": "Ranked yield pools with stability score and risk caveats.",
      "tags": [
        "defi",
        "yield",
        "apy",
        "stablecoin",
        "lending",
        "treasury"
      ],
      "examples": [
        "GET https://meryol-agenticmarket-x402.hf.space/yields/best?chain=base&asset=USDC&stable_only=true"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "x402_price_usd": "0.002"
    }
  ],
  "payments": {
    "protocol": "x402",
    "x402Version": 2,
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "asset_symbol": "USDC",
    "payTo": "0x8eeF0E8b6a65911f848976388C26b3CcDA4Ab601",
    "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402"
  }
}