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📊 Intel view 📋 Audit JSON 🔄 Changelog
100
A2A live JSON-RPC signature verified A2A 1.0 v1.9.0 x402 micropay

AINumbers OpenChainGraph Suite

ainumbers.co · Post Oak Labs

Client-side, zero-egress, Policy-Mandate-emitting decision tools with verifiable SHA-256 execution hashes — agentic-finance infrastructure across agentic payments (AP2/ACP/x402/Visa TAP/A2A), capital & liquidity, regulatory compliance, and cryptographic settlement integrity. Emits OpenChainGraph-conformant verifiable artifacts (OpenChainGraph Standard v0.8.13).

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Trust score
90/100
grade A · 9 criteria
Uptime
100.0%
5 direct probes · 30d
~518 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

A
Conformance score: 90/100
A-grade: production-ready agent with verified compliance signals across the board.
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 ~518 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.
pass Uptime track record 15/15
5/5 probes succeeded (100% uptime).
pass Skill declaration 10/10
Declares 4 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: Post Oak Labs (https://postoaklabs.com). 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
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.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-10-02 11:20:16 current b38bd6086cbc… view →
Uptime
100.0%
5 direct probes · 30d
Response
204ms
last direct probe
Skills
4
declared
Streaming
—
SSE-capable

Try it

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

calling agent…

Endpoints

Agent cardhttps://ainumbers.co/.well-known/agent-card.json
Providerhttps://postoaklabs.com
Docshttps://ainumbers.co/mcp.html
Discovered via
smithery recrawl_hot

Skills · 4 declared · mapped to canonical taxonomy

Agentic Payments & Protocols

Validate and model agentic-commerce transactions across AP2 v0.2 (FIDO Alliance), ACP (OpenAI/Stripe), x402, Visa TAP (RFC 9421), and A2A — including cross-prot…

canonical Agent-Initiated Checkout (AP2) match 89%
AP2ACPx402Visa TAPA2A
Capital, Liquidity & Quantitative Risk

Basel III/3.1 RWA, LCR/NSFR liquidity stress, portfolio VaR/ES, XVA/CVA, FRTB IMA Expected Shortfall, and MiCA stablecoin reserve stress — client-side Monte Car…

canonical Trade Corridor Risk Triage match 81%
Basel 3.1LCRNSFRVaRFRTB
Regulatory Compliance & Resilience

EU AI Act conformity, GENIUS Act reserve attestation, DORA incident classification + ICT cascade, EN 16931 e-invoicing, APP fraud graphs, anomaly detection, and…

canonical Agent Profiles match 84%
EU AI ActDORAAMLAGENIUS ActMCP attestation
Cryptographic & Settlement Integrity

ZK compliance proofs, Merkle batch settlement verification, ISO 20022 structured-address migration, and agent-session audit-trail aggregation (SHA-256 Merkle-ro…

canonical Agent Profiles match 85%
ZKMerkleISO 20022session-receiptexecution_hash

Health · last 5 probes

When HTTP Live JSON-RPC Latency
2026-10-03 12:57:23 200 ✓ 204ms
2026-10-03 06:56:00 200 ✓ 174ms
2026-10-03 00:51:38 200 ✓ 216ms
2026-10-02 18:23:58 200 ✓ 189ms
2026-10-02 11:20:16 200 ✓ 217ms

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Embed your Agenstry badge

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

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
{
  "protocolVersion": "1.0",
  "name": "AINumbers OpenChainGraph Suite",
  "description": "Client-side, zero-egress, Policy-Mandate-emitting decision tools with verifiable SHA-256 execution hashes \u2014 agentic-finance infrastructure across agentic payments (AP2/ACP/x402/Visa TAP/A2A), capital & liquidity, regulatory compliance, and cryptographic settlement integrity. Emits OpenChainGraph-conformant verifiable artifacts (OpenChainGraph Standard v0.8.13).",
  "url": "https://mcp.ainumbers.co/mcp",
  "preferredTransport": "JSONRPC",
  "supportedInterfaces": [
    {
      "url": "https://mcp.ainumbers.co/mcp",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "1.0"
    }
  ],
  "version": "1.9.0",
  "provider": {
    "organization": "Post Oak Labs",
    "url": "https://postoaklabs.com"
  },
  "documentationUrl": "https://ainumbers.co/mcp.html",
  "iconUrl": "https://ainumbers.co/favicon.svg",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": [
      {
        "uri": "https://postoaklabs.github.io/chaingraph/ext/x-chaingraph/v0.1",
        "description": "Emits OpenChainGraph verifiable decision artifacts (hash-anchored, chainable). See the OpenChainGraph Standard v0.8.13.",
        "required": false,
        "params": {
          "conformance_level": "L4",
          "graph_index": "https://ainumbers.co/chaingraph/chaingraph.json",
          "verify_endpoint": "verify_execution_hash",
          "hash_alg": "sha256",
          "mandate_namespace": "co.ainumbers"
        }
      }
    ]
  },
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "skills": [
    {
      "id": "agentic-payments",
      "name": "Agentic Payments & Protocols",
      "description": "Validate and model agentic-commerce transactions across AP2 v0.2 (FIDO Alliance), ACP (OpenAI/Stripe), x402, Visa TAP (RFC 9421), and A2A \u2014 including cross-protocol conformance, A2A x402-extension mandates, and A2A agent-card trust chains.",
      "tags": [
        "AP2",
        "ACP",
        "x402",
        "Visa TAP",
        "A2A",
        "agentic-commerce",
        "conformance"
      ],
      "examples": [
        "Validate this AP2 Intent/Cart/Payment mandate trio",
        "Conformance-check one agent purchase across AP2 + ACP + Visa TAP + x402",
        "Validate an A2A agent card and its delegated-authority trust chain"
      ]
    },
    {
      "id": "capital-liquidity",
      "name": "Capital, Liquidity & Quantitative Risk",
      "description": "Basel III/3.1 RWA, LCR/NSFR liquidity stress, portfolio VaR/ES, XVA/CVA, FRTB IMA Expected Shortfall, and MiCA stablecoin reserve stress \u2014 client-side Monte Carlo, zero egress.",
      "tags": [
        "Basel 3.1",
        "LCR",
        "NSFR",
        "VaR",
        "FRTB",
        "MiCA"
      ],
      "examples": [
        "Run an LCR/NSFR liquidity stress test",
        "Compute Basel 3.1 RWA scenarios with the output floor"
      ]
    },
    {
      "id": "regulatory-compliance",
      "name": "Regulatory Compliance & Resilience",
      "description": "EU AI Act conformity, GENIUS Act reserve attestation, DORA incident classification + ICT cascade, EN 16931 e-invoicing, APP fraud graphs, anomaly detection, and MCP server self-attestation.",
      "tags": [
        "EU AI Act",
        "DORA",
        "AMLA",
        "GENIUS Act",
        "MCP attestation"
      ],
      "examples": [
        "Classify a DORA major incident reporting threshold",
        "Attest an MCP server's ship-readiness (composite A-F grade)"
      ]
    },
    {
      "id": "cryptographic-integrity",
      "name": "Cryptographic & Settlement Integrity",
      "description": "ZK compliance proofs, Merkle batch settlement verification, ISO 20022 structured-address migration, and agent-session audit-trail aggregation (SHA-256 Merkle-root session receipts).",
      "tags": [
        "ZK",
        "Merkle",
        "ISO 20022",
        "session-receipt",
        "execution_hash"
      ],
      "examples": [
        "Aggregate my session's execution hashes into one Merkle-root receipt",
        "Independently verify a OpenChainGraph artifact's execution hash"
      ]
    }
  ],
  "signatures": [
    {
      "protected": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDprZXk6ejZNa2dzN3lXNVg2UVZQM2duZldYS21vcFh6dnlwd2tZMlZGVDZmNTZOQ283MnRDIiwidHlwIjoiSk9TRSJ9",
      "signature": "m9MX-J1ekmAU1EpgFfkWnxHh6YseERTOWanuYUDA-TK2LD9ygTKi0BPV4yEbV8SFTDhZ8-u8kmiSgoK9gZbVDw"
    }
  ]
}