{"uid":"cap_mrAyXkxuOUFlrTmI9UUQp","slug":"alpha-stream-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-daea05a2","name":"Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router","description":"Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall. (Live x402 v2, IETF MPP & MCP endpoint at https://alpha-stream.agentdiet.dev/v1/x402-gateway)","url":"https://alpha-stream.agentdiet.dev/v1/x402-gateway?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["query"],"properties":{"query":{"type":"string","minLength":1,"description":"Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.01","displayCostAsset":"USD","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":"$0.01/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HE4d4Fy-IrrbsiTUYk_Yl","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"alpha-stream.agentdiet.dev","brandSlug":"alpha-stream-agentdiet-dev-mpp","brandBaseUrl":"https://alpha-stream.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches an index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered routing results for agent swarms","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that handles SEC filings or company enrichment — I need a tool my agent can call to pull financial data on public companies.","exampleUseCases":[{"title":"Discovering GitHub security audit tools","prompt":"Find me an MCP server in the meta-router that can do GitHub security audits or code scanning — I want to plug it into my agent pipeline."},{"title":"Routing agent to context compression tool","prompt":"Search the tool index for anything that does context compression or token reduction — my agent is hitting token limits and I need a tool to shrink prompts before sending them to the LLM."},{"title":"Finding on-chain risk analysis tools","prompt":"Can you search the A2A and MCP tool directory for anything related to on-chain risk or DEX token intelligence? I'm building a DeFi monitoring agent and need a safe proxied tool for that."}],"resultDescription":"Returns a compressed, Prompt-Guard-filtered list of matching MCP servers and A2A tools from a 500+ server index, including routing metadata, capability descriptors, and endpoint references relevant to the search query — with approximately 85% token reduction applied to the results.","failureModes":["Empty or vague query returns no useful matches","Query too broad returns overwhelming or unfocused results","Indexed server is offline or stale — routing to it may fail downstream","Payment not processed (x402) — request blocked before search executes","Prompt-Guard firewall blocks query if it resembles adversarial input"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to call for a given capability, rather than hardcoding a specific tool. Especially useful in swarm architectures where agents need to self-route to the right sub-tool at runtime, or when building meta-agents that orchestrate across many specialized tools without prior knowledge of which ones exist.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:25.632Z","isFirstParty":false,"canonicalSlug":"alpha-stream-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-4c5998e1"}