{"uid":"cap_0Ieb0xkn8BSG6lKP5pfuS","slug":"alpha-stream-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-d878b300","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/agent-tool-marketplace)","url":"https://alpha-stream.agentdiet.dev/v1/agent-tool-marketplace?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_7VuMqVUfX7uo4iP3ekXeT","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 results for agent tool discovery and routing.","exampleAgentPrompt":"Search the agent tool marketplace for MCP servers or A2A tools that handle 'GitHub security auditing' — I want the top matches with compressed metadata and prompt-guard filtering applied.","exampleUseCases":[{"title":"Discover tools for SEC filings","prompt":"Search the agent tool marketplace for any MCP servers or A2A tools that can retrieve or analyze SEC filings — show me what's available with token-compressed summaries."},{"title":"Find context compression agents","prompt":"I need to find agent tools specializing in context compression — can you query the tool marketplace for 'context compression' and tell me what MCP servers come back?"},{"title":"Locate on-chain risk analysis tools","prompt":"Search the swarm router marketplace for tools that do on-chain risk analysis or DEX token intelligence — I want a safe-proxied list of what's indexed."}],"resultDescription":"Returns a structured object listing matching MCP servers and A2A tools relevant to the query, with metadata compressed by up to 85% and filtered through a Prompt-Guard firewall to screen out malicious or non-compliant endpoints.","failureModes":["Empty or vague query returns no meaningful matches","Query string too generic results in low-relevance tool listings","Endpoint URL verification returns inconclusive compliance status if the remote server is offline","Payment via x402 fails if USDC balance is insufficient or Base network is congested","Rate limiting or HTTP 402 payment required if call quota is exceeded"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools exist for a given capability at runtime, rather than hardcoding tool connections. Especially useful when building swarm agents that need to self-assemble tool chains, or when you want a single connection point that indexes 500+ tools with built-in safety filtering and token compression.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:19.749Z","isFirstParty":false,"canonicalSlug":"alpha-stream-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-4c5998e1"}