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📊 Intel view 📋 Audit JSON 🔄 Changelog
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💰 Paid API

blockchain-api.x402-chain-tools.workers.dev

blockchain-api.x402-chain-tools.workers.dev · blockchain-api.x402-chain-tools.workers.dev

Lookup Base transaction by hash on Base Mainnet. Return sender, recipient, value, nonce, block, gas fields, and input data when found.

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Verify the domain blockchain-api.x402-chain-tools.workers.dev 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
Trust score
34/100
grade F · 9 criteria
Uptime
not measured
no direct probes in 30d
Observed inflow · 30d
not yet measured
wallet declared · scan pending
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
0 snapshots tracked
Owner
unverified
claim this listing →

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. 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 →
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).
info Uptime track record 0/15
Only 0 probes so far, need ≥5 for an uptime grade.
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: blockchain-api.x402-chain-tools.workers.dev (https://blockchain-api.x402-chain-tools.workers.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
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
not measured
0 direct probes · 30d
Response
—
no direct probe retained
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base USDC Facilitator feed Dispute or improve this rating
From $0.0010 per call
Endpoint Price Currency
https://blockchain-api.x402-chain-tools.workers.dev/chain/allowance 0.001 USDC
https://blockchain-api.x402-chain-tools.workers.dev/chain/balance 0.001 USDC
https://blockchain-api.x402-chain-tools.workers.dev/chain/block 0.001 USDC
https://blockchain-api.x402-chain-tools.workers.dev/chain/receipt 0.002 USDC
https://blockchain-api.x402-chain-tools.workers.dev/chain/token-balance 0.001 USDC
https://blockchain-api.x402-chain-tools.workers.dev/chain/transaction-lookup 0.002 USDC
https://blockchain-api.x402-chain-tools.workers.dev/chain/transaction-receipt-status 0.002 USDC
https://blockchain-api.x402-chain-tools.workers.dev/chain/tx 0.002 USDC
https://blockchain-api.x402-chain-tools.workers.dev/chain/wallet-preflight 0.002 USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0xa7e1fe3744e3b6d55237d95ce575cafe3b8abecd · basescan ↗
Agent cardhttps://blockchain-api.x402-chain-tools.workers.dev
Providerhttps://blockchain-api.x402-chain-tools.workers.dev
Docshttps://blockchain-api.x402-chain-tools.workers.dev
Discovered via
agentic_market cdp_discovery

Health · last 0 probes

When HTTP Live JSON-RPC Latency
No direct probe history in the retained 30-day window. Upstream catalogue observations do not count as uptime probes.

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Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/blockchain-api.x402-chain-tools.workers.dev.svg)](https://agenstry.com/agents/blockchain-api.x402-chain-tools.workers.dev)
[![Verified Business](https://agenstry.com/badge/blockchain-api.x402-chain-tools.workers.dev/identity.svg)](https://agenstry.com/agents/blockchain-api.x402-chain-tools.workers.dev)
[![Uptime](https://agenstry.com/badge/blockchain-api.x402-chain-tools.workers.dev/uptime.svg)](https://agenstry.com/agents/blockchain-api.x402-chain-tools.workers.dev)
[![A2A version](https://agenstry.com/badge/blockchain-api.x402-chain-tools.workers.dev/protocol.svg)](https://agenstry.com/agents/blockchain-api.x402-chain-tools.workers.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": "blockchain-api-x402-chain-tools-workers-dev",
    "name": "blockchain-api.x402-chain-tools.workers.dev",
    "description": "",
    "domain": "blockchain-api.x402-chain-tools.workers.dev",
    "provider": "blockchain-api.x402-chain-tools.workers.dev",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base",
      "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://blockchain-api.x402-chain-tools.workers.dev/chain/allowance",
        "description": "Get the ERC-20 allowance from an owner to a spender.",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "owner",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000001",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "spender",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000003",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "token",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000002",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "x402 Chain Tools",
        "tags": [
          "x402",
          "base",
          "wallet",
          "erc20"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://blockchain-api.x402-chain-tools.workers.dev/chain/balance",
        "description": "Get the native ETH balance of a Base address.",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "address",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000001",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "x402 Chain Tools",
        "tags": [
          "x402",
          "base",
          "wallet"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://blockchain-api.x402-chain-tools.workers.dev/chain/block",
        "description": "Get the current Base Mainnet block number.",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [],
        "serviceName": "x402 Chain Tools",
        "tags": [
          "x402",
          "blockchain",
          "base"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://blockchain-api.x402-chain-tools.workers.dev/chain/receipt",
        "description": "Get a Base transaction receipt and execution status.",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "hash",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000000000000000000000000000000",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "x402 Chain Tools",
        "tags": [
          "x402",
          "blockchain",
          "base",
          "transactions"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://blockchain-api.x402-chain-tools.workers.dev/chain/token-balance",
        "description": "Get an ERC-20 token balance for a Base address.",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "address",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000001",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "token",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000002",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "x402 Chain Tools",
        "tags": [
          "x402",
          "base",
          "wallet",
          "erc20"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://blockchain-api.x402-chain-tools.workers.dev/chain/transaction-lookup",
        "description": "Lookup Base transaction by hash on Base Mainnet. Return sender, recipient, value, nonce, block, gas fields, and input data when found.",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "hash",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000000000000000000000000000000",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "x402 Chain Tools",
        "tags": [
          "x402",
          "blockchain",
          "base",
          "transactions"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://blockchain-api.x402-chain-tools.workers.dev/chain/transaction-receipt-status",
        "description": "Check Base transaction receipt status by transaction hash. Determine whether the transaction is pending, confirmed successful, or confirmed reverted, with receipt, block, and gas details.",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "hash",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000000000000000000000000000000",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "x402 Chain Tools",
        "tags": [
          "x402",
          "blockchain",
          "base",
          "transactions"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://blockchain-api.x402-chain-tools.workers.dev/chain/tx",
        "description": "Look up a Base Mainnet transaction.",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "hash",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000000000000000000000000000000",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "x402 Chain Tools",
        "tags": [
          "x402",
          "blockchain",
          "base",
          "transactions"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://blockchain-api.x402-chain-tools.workers.dev/chain/wallet-preflight",
        "description": "Check read-only ERC-20 wallet readiness for a planned token spend.",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "amount",
            "type": "string",
            "description": "",
            "example": "10.5",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "spender",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000003",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "token",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000002",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "wallet",
            "type": "string",
            "description": "",
            "example": "0x0000000000000000000000000000000000000001",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "x402 Chain Tools",
        "tags": [
          "x402",
          "base",
          "ai-agents",
          "wallet",
          "erc20"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.001",
      "maxAmount": "0.002",
      "avgCostPerTransaction": "0.001556",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "x402 Chain Tools",
    "tags": [
      "x402",
      "base",
      "wallet",
      "erc20",
      "blockchain",
      "transactions",
      "ai-agents"
    ],
    "iconUrl": ""
  }
}