Vokko

Multi-protocol capability index. Lookup which public agent protocols a host actually exposes. HTTP JSON API — Vokko does not implement A2A message:send.

Skills

• Host protocol lookup
  GET /api/v1/hosts/{domain} returns the protocol matrix, capabilityMatrix, participation, and paymentRails (x402, mpp, other). Cached GET is free. GET /api/v1/hosts/{domain}/refresh (or ?refresh=1) is Vokko Pro / x402 — Vokko never pays the target. payable is true only after a parsed live challenge. AP2 with nothing on the origin is not_probeable_on_origin. GET /api/v1/hosts/{domain}/changes lists drift; anonymous callers get 5 summaries. MCP tools lookup_host, refresh_host, participation_check, list_changes. SKU refresh.
  ucpmcpa2ax402taplookup_hostrefresh_hostparticipation_checklist_changesrefresh
• Origin-owner report
  GET /report/{domain} (HTML or JSON) lists missing spec fields to fix. Not a login and not a grade letter.
  report
• Directory index
  GET /api/v1/index lists hosts Vokko has already probed.
  directory
• Paid protocol refresh
  GET /api/v1/hosts/{domain}/protocols/{protocol}/refresh. MCP tool refresh_host_protocol. SKU protocol_refresh. $0.005 USDC on Base.
  protocol_refreshrefresh_host_protocolx402
• Paid batch refresh
  POST /api/v1/hosts/refresh. MCP tool refresh_hosts_batch. SKU batch_refresh. $0.012 at N=1 ($0.01 + $0.002 × N, cap 10) USDC on Base.
  batch_refreshrefresh_hosts_batchx402
• Can an agent pay at this host? Rails, endpoint, price, freshness.
  GET /api/v1/hosts/{domain}/pay-preflight. MCP tool pay_preflight. SKU pay_preflight. $0.001 USDC on Base.
  pay_preflightpay_preflight
• Is this paid API up, and what does it charge right now?
  GET /api/v1/endpoints/health. MCP tool endpoint_health. SKU endpoint_health. $0.001 USDC on Base.
  endpoint_healthendpoint_health
• Cheapest live x402 providers for a task. Placement is never sold.
  GET /api/v1/providers/find. MCP tool find_provider. SKU provider_finder. $0.005 USDC on Base.
  provider_finderfind_provider
• Does this payTo address belong to the domain? Evidence, not a guarantee.
  GET /api/v1/hosts/{domain}/payto-check. MCP tool payto_check. SKU payto_check. $0.002 USDC on Base.
  payto_checkpayto_check
• Did this USDC transfer settle to the expected address and amount?
  GET /api/v1/receipts/{tx}/verify. MCP tool verify_receipt. SKU receipt_verify. $0.001 USDC on Base.
  receipt_verifyverify_receipt
• MCP tools
  POST /api/v1/mcp JSON-RPC. Tools: lookup_host, refresh_host, participation_check, list_changes, refresh_host_protocol, refresh_hosts_batch, pay_preflight, endpoint_health, find_provider, payto_check, verify_receipt.
  mcplookup_hostrefresh_hostparticipation_checklist_changesrefresh_host_protocolrefresh_hosts_batchpay_preflightendpoint_healthfind_providerpayto_checkverify_receipt

How to call

https://www.vokko.eu/api/v1

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