Skip to content
Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
80
A2A live JSON-RPC signature verified A2A 1.0 v6.8.0 x402 micropay

X402-AUDIT — A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor

x402-audit-72343955726.us-central1.run.app · AgentDiet B2A Infrastructure

Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers.

Build a free agent shortlist. Save this listing to revisit it from your account. Sign in to save
🛡
Own this agent?
Verify the domain x402-audit-72343955726.us-central1.run.app 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.
Verify ownership

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
80/100
grade B · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
~132 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
1 snapshot tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

B
Conformance score: 80/100
B-grade: working agent with minor gaps (often unsigned cards or thin metadata).
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).
pass Live JSON-RPC 25/25
Endpoint responds to a negotiated A2A SendMessage probe (answers in ~132 ms).
pass Protocol version 10/10
Declares A2A 1.0 with supportedInterfaces[] (current v1 card shape).
pass JWS signature 10/10
Agent card is JWS-signed and signature verifies.
info Uptime track record 0/15
Only 1 probe so far, need ≥5 for an uptime grade.
pass Skill declaration 10/10
Declares 3 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: AgentDiet B2A Infrastructure (https://x402-audit-72343955726.us-central1.run.app). 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
pass Security declaration 5/5
Declares mTLS: strongest A2A credential binding.

Activity (audit trail)

last 24h · 0 invocations 100.0% success Public aggregate · no PII recorded
0
invocations 7d
reached the endpoint through us
1
lookups 7d
our API answered about it
0
impressions 7d
appeared in a result list
Per event type (7d)
1
form_submission
Recent events (last 20)
When Event Method Status Latency
2026-10-19T00:00:47 form_submission /submit — ok 9672ms

Card history

1 snapshot Every change to agent-card.json
Agent card snapshots
Captured Hash Snapshot
2026-10-19 00:00:39 current 2eb713d78e5e… view →
Uptime
accumulating
1 direct probes · 30d
Response
133ms
last direct probe
Skills
3
declared
Streaming
—
SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

calling agent… ⌘/Ctrl + Enter

Endpoints

Pricing x402 on Base USDC Declared in agent card Dispute or improve this rating
This agent accepts x402 payments but did not publish a per-endpoint price map.
Try it ↗ Opens the operator's documentation in a new tab.
Agent cardhttps://x402-audit-72343955726.us-central1.run.app/.well-known/agent-card.json
Providerhttps://x402-audit-72343955726.us-central1.run.app
Docshttps://x402-audit-72343955726.us-central1.run.app/llms.txt
Discovered via
submitted

Skills · 3 declared by this agent

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

A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor

Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers.

canonical Agent Readiness Audit match 91%
agent-infrastructurex402mcpa2ax402-audit
audit_x402_and_a2a_endpoint (MCP JSON-RPC)

Execute audit_x402_and_a2a_endpoint directly over MCP Streamable HTTP JSON-RPC 2.0 at https://x402-audit-72343955726.us-central1.run.app/mcp/x402-audit.

canonical Agent Readiness Audit match 89%
mcpjsonrpcagent-infrastructurex402-audit
Check Agent Wallet & Free-Trial Quota

Inspect remaining free-trial calls, prepaid USDC session pass balance, and cumulative ROI savings.

No taxonomy category yet
billingwalletx402quota

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-10-19 00:00:39 200 ✓ 133ms

Who's calling this agent 30d

1 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3
Web browser 1 (100%)
Caller geography · top 3
NL 1
Via which API surface · top 3
web 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.

Similar agents embedding-nearest

X402-BROKER — Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router live
Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall.
AgentDiet B2A Infrastructure · q 100%
Agent Card Validator MCP
Pay-per-call MCP that audits + lints any x402/A2A service's discovery surfaces (agent-card.json, ai-plugin.json, openapi.yaml, mcp.json, age
agent-card-validator-mcp.mtree.workers.dev · q 73%
Penny x402 Endpoint Audit
Discovery card for a paid HTTP tool, not an A2A JSON-RPC service. This origin publishes no A2A transport endpoint: the skill below is invoke
Penny (autonomous agent) · q 75%
x402 Market Intelligence MCP
x402 buyer-decision MCP for execution-time endpoint preflight, service ranking, provider trust, token risk, and transaction checks. Paid ans
x402-market-intel-mcp.mtree.workers.dev · q 66%
ProofRail Access Agent
A2A bridge for autonomous MCP discovery, free endpoint preflight, and optional x402-paid ProofRail certification with deterministic evidence
ProofRail · q 90%
AIノアカリ☆ Result Receipt Auditor live
Public no-auth A2A auditor with a free audit and explicit $0.01 USDC x402 instant receipt path.
AIノアカリ☆ · q 90%

Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/x402-audit-72343955726.us-central1.run.app.svg)](https://agenstry.com/agents/x402-audit-72343955726.us-central1.run.app)
[![Verified Business](https://agenstry.com/badge/x402-audit-72343955726.us-central1.run.app/identity.svg)](https://agenstry.com/agents/x402-audit-72343955726.us-central1.run.app)
[![Uptime](https://agenstry.com/badge/x402-audit-72343955726.us-central1.run.app/uptime.svg)](https://agenstry.com/agents/x402-audit-72343955726.us-central1.run.app)
[![A2A version](https://agenstry.com/badge/x402-audit-72343955726.us-central1.run.app/protocol.svg)](https://agenstry.com/agents/x402-audit-72343955726.us-central1.run.app)

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": "X402-AUDIT \u2014 A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor",
  "description": "Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers.",
  "url": "https://x402-audit-72343955726.us-central1.run.app",
  "iconUrl": "https://x402-audit-72343955726.us-central1.run.app/favicon.ico",
  "documentationUrl": "https://x402-audit-72343955726.us-central1.run.app/llms.txt",
  "mcp": "https://x402-audit-72343955726.us-central1.run.app/mcp/x402-audit",
  "version": "6.8.0",
  "protocolVersion": "1.0",
  "supportedInterfaces": [
    {
      "url": "https://x402-audit-72343955726.us-central1.run.app/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "1.0"
    },
    {
      "url": "https://x402-audit-72343955726.us-central1.run.app/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "0.3"
    }
  ],
  "provider": {
    "organization": "AgentDiet B2A Infrastructure",
    "url": "https://x402-audit-72343955726.us-central1.run.app",
    "contactEmail": "roberto.yanguas@gmail.com"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extendedAgentCard": false,
    "stateTransitionHistory": false,
    "extensions": [
      {
        "uri": "https://github.com/coinbase/x402/v2",
        "required": false,
        "description": "x402 v2 micropayments (USDC on Base & Solana)",
        "params": {
          "discoveryUrl": "https://x402-audit-72343955726.us-central1.run.app/.well-known/x402",
          "network": "eip155:8453",
          "asset": "USDC",
          "payTo": "0xec5275d5b03bc390fca63d902d0b2d0db2eb5573",
          "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402"
        }
      },
      {
        "uri": "https://agenstry.com/a2a/extensions/mcp-discovery/v1",
        "required": false,
        "description": "Model Context Protocol (MCP) Streamable HTTP endpoint.",
        "params": {
          "url": "https://x402-audit-72343955726.us-central1.run.app/mcp/x402-audit",
          "protocolVersion": "2025-03-26",
          "discoveryUrl": "https://x402-audit-72343955726.us-central1.run.app/.well-known/mcp/server-card.json"
        }
      }
    ]
  },
  "securitySchemes": {
    "mtls": {
      "type": "mutualTLS",
      "description": "Optional mutual TLS client certificate authentication for enterprise A2A peering."
    },
    "apiKey": {
      "type": "apiKey",
      "in": "header",
      "name": "X-Agent-Id",
      "description": "Free trial agent ID or prepaid session pass key (agd_pass_...)."
    },
    "bearer": {
      "type": "http",
      "scheme": "bearer",
      "bearerFormat": "agd_pass",
      "description": "Bearer session pass or x402 payment proof."
    }
  },
  "securityRequirements": [],
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "response_schema": {
    "type": "object",
    "properties": {
      "status": {
        "type": "string"
      },
      "data": {
        "type": "object"
      }
    },
    "required": [
      "status",
      "data"
    ]
  },
  "outputSchema": {
    "type": "object",
    "properties": {
      "status": {
        "type": "string"
      },
      "data": {
        "type": "object"
      }
    },
    "required": [
      "status",
      "data"
    ]
  },
  "authentication": {
    "schemes": [
      "x402",
      "mpp",
      "L402",
      "Bearer"
    ],
    "credentials": "HTTP 402 micropayments ($0.010 USDC on Base to 0xec5275d5b03bc390fca63d902d0b2d0db2eb5573) or X-Agent-Id free trial"
  },
  "skills": [
    {
      "id": "x402-audit",
      "name": "A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor",
      "description": "Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers.",
      "tags": [
        "agent-infrastructure",
        "x402",
        "mcp",
        "a2a",
        "x402-audit"
      ],
      "examples": [
        "GET https://x402-audit-72343955726.us-central1.run.app/v1/x402-audit?url=https://agentdiet-72343955726.us-central1.run.app/v1/distill"
      ],
      "inputModes": [
        "application/json",
        "text/plain"
      ],
      "outputModes": [
        "application/json",
        "text/plain"
      ],
      "outputSchema": {
        "type": "object",
        "properties": {
          "status": {
            "type": "string"
          },
          "data": {
            "type": "object"
          }
        },
        "required": [
          "status",
          "data"
        ]
      }
    },
    {
      "id": "x402-audit-mcp-tool",
      "name": "audit_x402_and_a2a_endpoint (MCP JSON-RPC)",
      "description": "Execute audit_x402_and_a2a_endpoint directly over MCP Streamable HTTP JSON-RPC 2.0 at https://x402-audit-72343955726.us-central1.run.app/mcp/x402-audit.",
      "tags": [
        "mcp",
        "jsonrpc",
        "agent-infrastructure",
        "x402-audit"
      ],
      "examples": [
        "POST https://x402-audit-72343955726.us-central1.run.app/mcp/x402-audit tools/call audit_x402_and_a2a_endpoint"
      ],
      "inputModes": [
        "application/json",
        "text/plain"
      ],
      "outputModes": [
        "application/json",
        "text/plain"
      ],
      "outputSchema": {
        "type": "object",
        "properties": {
          "status": {
            "type": "string"
          },
          "data": {
            "type": "object"
          }
        },
        "required": [
          "status",
          "data"
        ]
      }
    },
    {
      "id": "agent-wallet-status",
      "name": "Check Agent Wallet & Free-Trial Quota",
      "description": "Inspect remaining free-trial calls, prepaid USDC session pass balance, and cumulative ROI savings.",
      "tags": [
        "billing",
        "wallet",
        "x402",
        "quota"
      ],
      "examples": [
        "GET https://x402-audit-72343955726.us-central1.run.app/v1/wallet"
      ],
      "inputModes": [
        "application/json",
        "text/plain"
      ],
      "outputModes": [
        "application/json",
        "text/plain"
      ],
      "outputSchema": {
        "type": "object",
        "properties": {
          "status": {
            "type": "string"
          },
          "data": {
            "type": "object"
          }
        },
        "required": [
          "status",
          "data"
        ]
      }
    }
  ],
  "signatures": [
    {
      "protected": "eyJhbGciOiJFZERTQSIsImtpZCI6ImEyYS1lZDI1NTE5LXYxIiwidHlwIjoiYTJhLWNhcmQrandzIn0",
      "signature": "0G0Q3oY_d517lrnnQ3xHOJMcqeev9rVwmvpXUTDoh7tYetnEH3eUnVsDrKOgPjBsOFzp5c9Epp2wbospHY8wBQ"
    }
  ]
}