{"uid":"cap_hIhqR-76P7GZL7ix9XgI6","slug":"vokko-multi-protocol-host-probe-fe8fd423","name":"Vokko Multi-Protocol Host Probe","description":"Probe a host for UCP, ACP, AP2, TAP, MCP, A2A, x402, MPP, llms.txt and OpenAPI. UCP is one cell — not the product.","url":"https://www.vokko.eu/api/v1/hosts/%7Bdomain%7D?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","description":"Host being re-probed"}}},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"domain":"example.com","probedAt":"2026-01-01T00:00:00.000Z","protocols":[{"id":"ucp","status":"present"},{"id":"mcp","status":"absent"},{"id":"x402","status":"callable"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_atV3ekf5x5wWP6GafBx8B","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Probes a domain and returns which agent-web protocols (UCP, ACP, AP2, TAP, MCP, A2A, x402, MPP, llms.txt, OpenAPI) are present, absent, or callable","exampleAgentPrompt":"Probe stripe.com and tell me which agent-web protocols it supports — I want to know if MCP, x402, A2A, or llms.txt are present or callable.","exampleUseCases":[{"title":"Vetting a vendor for agent integration","prompt":"Before I build an integration, check whether notion.com has MCP or A2A support — I need to know which agentic protocols are actually live there."},{"title":"Discovering x402 payment support","prompt":"Does shopify.com support x402 payments? Probe it and tell me if the payment rail is callable or just declared."},{"title":"Auditing a new API partner for protocol coverage","prompt":"I'm evaluating github.com as an agent-web partner — scan it for UCP, OpenAPI, llms.txt, and any other agent protocols and show me what's present versus absent."}],"resultDescription":"A JSON object containing the domain, a timestamp of when it was probed, and an array of protocol entries (e.g. UCP, ACP, AP2, TAP, MCP, A2A, x402, MPP, llms.txt, OpenAPI), each with its detection status: 'present', 'absent', or 'callable'.","failureModes":["Domain does not exist or is unreachable — probe may return all protocols as absent or return an error","Firewall or rate-limiting on the target host blocks the probe — status may be inaccurate","Malformed domain input returns a 400 or path-not-found error","Stale or cached results if re-probe was not explicitly triggered","x402 payment failure prevents the probe from being executed"],"whenToPreferThis":"Use this endpoint when you need a single call that checks a host against the full spectrum of agent-web protocols simultaneously — rather than querying each protocol endpoint separately or using a cached report endpoint. Prefer this for fresh, live detection of MCP, A2A, x402, UCP, llms.txt, and OpenAPI in one result.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T12:32:44.443Z","isFirstParty":false,"canonicalSlug":"vokko-multi-protocol-host-probe-fe8fd423"}