{"uid":"cap_aRXqKhnqzyGCrqIENnXit","slug":"mcp-server-probe-7a2dcf54","name":"MCP Server Probe","description":"MCP server probe (streamable HTTP): runs initialize and tools/list against a Model Context Protocol server and returns protocol version, server name/version, capabilities, instructions, tool count and the tools (name, description, input properties), whether a session id is issued, whether it answers with JSON or SSE, and if the server requires OAuth (401 + resource metadata). Discover what an agent can call before wiring it in. $0.01 per server.","url":"https://intel.rallylive.ca/dev/mcp-probe","method":"GET","headers":{},"bodySchema":{"type":"object","$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"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_IBY3gCNbOjvZ-hsmYOrBi","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Runs initialize and tools/list against a Model Context Protocol (MCP) server to discover its protocol version, capabilities, tools, and authentication requirements before wiring it into an agent.","exampleAgentPrompt":"Probe the MCP server at https://api.example.com/mcp and tell me what tools it exposes, what protocol version it uses, whether it requires OAuth, and whether it responds with JSON or SSE.","exampleUseCases":[{"title":"Pre-integration MCP server audit","prompt":"Before I wire in the MCP server at https://myservice.io/mcp, can you probe it and tell me all the tools it exposes, whether it needs OAuth, and what protocol version it's running?"},{"title":"Comparing two MCP servers side by side","prompt":"I have two MCP servers — https://alpha.example.com/mcp and https://beta.example.com/mcp — can you probe both and tell me which tools each one has and how their capabilities differ?"},{"title":"Debugging MCP server authentication","prompt":"My agent keeps getting 401 errors connecting to https://vendor.io/mcp/v1. Can you probe it and tell me whether it requires OAuth and what resource metadata it returns?"}],"resultDescription":"Returns the MCP server's protocol version, server name and version, declared capabilities, instructions, total tool count, full tool list (each with name, description, and input schema properties), whether a session ID is issued, whether the server responds with JSON or SSE, and whether OAuth is required (detected via 401 + resource metadata).","failureModes":["Server unreachable or DNS failure — returns connection error","Server does not implement MCP protocol — returns malformed or unexpected response","OAuth-protected server returns 401 without resource metadata — partial auth info only","Server times out during initialize or tools/list handshake — returns timeout error","Rate limiting or firewall blocks the probe request — returns HTTP error code"],"whenToPreferThis":"Use this endpoint when you need to inspect an MCP server before integrating it into an agent pipeline — especially to enumerate available tools, detect authentication requirements, or verify protocol compatibility. Prefer this over manually parsing MCP responses or writing your own probe logic. It is purpose-built for MCP discovery and costs only $0.01 per call, making it ideal for lightweight pre-flight checks before agent wiring.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:49:13.157Z","isFirstParty":false}