AINumbers OpenChainGraph Suite
postoaklabs.com
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).
AgentCard object — a capabilities object, a declared protocolVersion, and a well-formed skills array.
ainumbers.co).
It was found at this path because AINumbers.co’s record references that host. That happens for a product or a parent company as readily as for an unrelated one, so we do not claim AINumbers.co serves this agent endpoint — the card is reproduced here as published, and the identity above is the card’s own.
An A2A client finds this agent by fetching the well-known path on the host below. An agent card cannot be derived, generated or reconstructed on anyone’s behalf — whoever serves it published it — but this host is not AINumbers.co’s own, so the card is evidence about Post Oak Labs rather than about AINumbers.co.
https://mcp.ainumbers.co/mcp
· transport JSONRPC
Agentic Payments & Protocols agentic-payments
Validate and model agentic-commerce transactions across AP2 v0.2 (FIDO Alliance), ACP (OpenAI/Stripe), x402, Visa TAP (RFC 9421), and A2A — including cross-protocol conformance, A2A x402-extension mandates, and A2A agent-card trust chains.
AP2ACPx402Visa TAPA2Aagentic-commerceconformanceCapital, Liquidity & Quantitative Risk capital-liquidity
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 Carlo, zero egress.
Basel 3.1LCRNSFRVaRFRTBMiCARegulatory Compliance & Resilience regulatory-compliance
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.
EU AI ActDORAAMLAGENIUS ActMCP attestationCryptographic & Settlement Integrity cryptographic-integrity
ZK compliance proofs, Merkle batch settlement verification, ISO 20022 structured-address migration, and agent-session audit-trail aggregation (SHA-256 Merkle-root session receipts).
ZKMerkleISO 20022session-receiptexecution_hash2026-11-01 from https://ainumbers.co/.well-known/agent-card.json,
HTTP 200. The body was saved verbatim and is the sole source for
everything on this page — no field is inferred.
View the captured card.
Providers change what they serve; if this card has moved or changed shape,
the provider profile carries the
current state as of the last build.
Work with this as data
Every agent card here is available over the APIs.io API and to AI agents over MCP. A2A Agent Cards is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.