Signed declarations of HTTP API exchanges for agent handoffs. Free preparation and verification; receipt issuance costs 0.002 USDC via x402 on Base. Start and connect: https://datoka.dev/api. Signatures attest declared data, not independent truth.
Scored across 4 tools
The four tools map to a clear pipeline: fetch trust keys, prepare (dry-run), issue (paid), verify. The prepare_api_exchange vs issue_api_receipt boundary is the only fuzzy one, but descriptions explicitly contrast 'returns commitment without issuing or paying' against actually buying a receipt.
All four follow a strict verb_api_noun snake_case pattern (get_api_public_keys, issue_api_receipt, prepare_api_exchange, verify_api_receipt), with verbs that accurately describe the action. No style deviations.
Four tools is appropriately lean for a focused receipt issuance/verification service, and each earns its place in the trust-to-verify lifecycle. It sits at the lower edge but is well-scoped rather than thin.
The surface covers the full lifecycle: trust anchor (public keys), pre-flight validation (prepare), issuance (issue), and independent verification (verify). Minor gaps like listing/retrieving previously issued receipts or revocation handling are not exposed but are workable around.
Return issuer public keys. Establish issuer trust independently before offline verification.
Inputs: no named parameters. Returns: keys, issuer
Buy a portable signed commitment to a declared API exchange when a recipient needs independently verifiable receipt integrity: response handoff, archived decision input, or change investigation. Costs 0.002 USDC per receipt via x402 when enabled; verification is free. A local log may suffice for disposable data. Requires caller-approved budget. Keep event, idempotency key and original payment unchanged on retry. Attests a client declaration, not provider origin, content truth or independent observation.
Inputs: event (required), idempotencyKey (required).
Free validation before buying a receipt. Supply an event built locally with the SDK from real captured bytes; never fabricate hashes. Returns the commitment without issuing a receipt or paying. Use when retaining verifiable evidence of an API response for a handoff or archive.
Inputs: event (required). Returns: chain, event, commitment
Free signature and declaration verification. To try before buying, read datoka-api://demo-receipt or /demo/receipt.json and pass the returned JSON here. No wallet needed for public verification. Verifies issuer, scope and event commitment; compare original response bytes locally with the SDK or /verify/.
Inputs: event (required), receipt (required). Returns: apiId, scope, valid, receiptId, +2 more
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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Signed declarations of agent execution steps for verifiable handoffs. Free preparation and verification; receipt issuance costs 0.002 USDC via x402 on Base. MCP, REST and A2A. Connect: https://datoka.dev/agent. Signatures do not independently verify execution.
Webhook delivery for agents and workflows, with encrypted queues, retries and signed relay observations. 100 free admissions per hook/day; extra pack: 0.10 USDC for 100. Setup and n8n guide: https://datoka.dev/hooks. Recipients must deduplicate events.
Paid agent services settled in USDC on Base via x402. Signed, verifiable, and free to verify.
Signed x402 attestations and bounty-packet preflight checks, paid per call in USDC on Base.
Add one secure layer between your agents and this server.
