{"uid":"cap_Y8Pl5qAI0JwhA8xK7b0Me","slug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-d50788cd","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://hn-pulse.agentdiet.dev/v1/tool-search)","url":"https://hn-pulse.agentdiet.dev/v1/tool-search?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_AJDJtirLN_HKD8JzoWxvw","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"hn-pulse.agentdiet.dev","brandSlug":"hn-pulse-agentdiet-dev-mpp","brandBaseUrl":"https://hn-pulse.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches a meta-index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered results via a single endpoint.","exampleAgentPrompt":"Search the MCP tool index for any servers that handle 'SEC filings' or 'company enrichment' — I need to find the best available tool for that capability across the swarm.","exampleUseCases":[{"title":"Find tools for on-chain risk analysis","prompt":"Search the tool swarm for any MCP or A2A agents that can do on-chain risk analysis or crypto wallet scoring — I want to see what's available across the index."},{"title":"Discover email verification agents","prompt":"Look up what MCP servers are available for email verification in the tool directory — I need to route that capability through the swarm."},{"title":"Verify a specific endpoint's availability","prompt":"Check if this endpoint URL is indexed and reachable in the tool swarm: https://example-mcp-server.dev/v1/tools — I want to make sure it's valid before I route tasks to it."}],"resultDescription":"A compressed list of matching MCP servers or A2A tools relevant to the search query, including tool metadata and capability descriptions filtered through the Prompt-Guard firewall, with up to 85% token reduction.","failureModes":["Query too vague — returns no matching tools or overly broad results","Endpoint URL provided for verification does not exist in the index — returns empty or not-found response","Rate limit exceeded or payment not processed — HTTP 402 response","Swarm index temporarily unavailable — service timeout or 503 error","Query triggers prompt-injection filter — request blocked by Prompt-Guard firewall"],"whenToPreferThis":"Use this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability, rather than hardcoding tool endpoints. Ideal for swarm orchestration scenarios where the agent must route tasks to the best available tool without prior knowledge of the full tool landscape. Prefer this over manual tool catalogs when you need token-efficient, firewall-safe tool discovery across a large, heterogeneous index.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:49.292Z","isFirstParty":false,"canonicalSlug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-45369aae"}