ARAKEL Machine Evidence Network
Machine-verifiable official-source evidence with free preflight and x402-paid execution on Base USDC. A2A provides discovery and routing metadata for Federal Register, OFAC sanctions, counterparty government checks, and signed evidence products.
AgentCard object. It is an agent card in spirit rather than in schema — useful for
discovery, but an A2A client cannot assume it will parse.
no-protocolVersionNo top-level protocolVersion; it appears inside supportedInterfaces[].protocolVersion (1.0).Uses supportedInterfaces[] transport array instead of the A2A 1.0.0 top-level url + preferredTransport.No top-level preferredTransport (transport is declared per-interface as JSONRPC).
An A2A client finds this agent by fetching the well-known path on the provider's own host. That is what makes an agent card different from every other agent artifact in this catalog: it is provider-published by construction — it cannot be derived, generated, or reconstructed on a provider's behalf.
https://proof.arakelproof.space/a2a
· transport JSONRPC
non-standard supportedInterfaces
Federal Register Evidence Search federal-register-evidence-routing
Routes an agent to official Federal Register evidence search. Paid execution uses GET /v1/federal-register-search for $0.005 USDC via x402; free preflight is available before payment.
federal-registerregulatorygovernment-dataofficial-sourcex402evidenceOFAC Sanctions Screening ofac-sanctions-evidence-routing
Routes an agent to official U.S. Treasury OFAC sanctions screening. Paid execution uses GET /v1/ofac-sanctions-screening for $0.005 USDC via x402; free preflight is available before payment.
ofacsanctionscompliancegovernment-dataofficial-sourcex402Counterparty Government Check counterparty-government-check-routing
Routes an agent to a multi-source government counterparty check across OFAC, FDA, USAspending, and Federal Register evidence. Paid execution uses GET /v1/counterparty-government-check for $0.03 USDC via x402.
counterpartydue-diligencecompliancegovernment-dataverificationx402Machine Evidence Catalog machine-evidence-catalog
Returns routing guidance for ARAKEL free preflight, signed evidence, batch checks, and x402-paid machine-verification products without charging the caller.
catalogpreflightsigned-evidencebatchverificationx4022026-09-13 from https://proof.arakelproof.space/.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.