{"uid":"cap_Bv78a-lYG3MonTZ3LjHhE","slug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-c6ed28a5","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/web-rag-shield-dag)","url":"https://hn-pulse.agentdiet.dev/v1/web-rag-shield-dag?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_ITvHJgB1SX7R_DnAKV19Z","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 an index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered tool metadata via a single connection.","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that handles 'SEC filings' — I want to find the right tool to pull financial disclosures without spinning up a dozen separate connections.","exampleUseCases":[{"title":"Finding tools for lead enrichment","prompt":"Search the tool index for 'company enrichment' — I need to find an MCP server that can fill in firmographic details for a list of B2B prospects."},{"title":"Discovering on-chain risk tools","prompt":"Look up what A2A or MCP tools are available for 'on-chain risk' so I can route my DeFi wallet analysis through something already indexed."},{"title":"Verifying a remote agent endpoint","prompt":"Can you check whether https://someagent.example.com/mcp is a valid, compliant MCP endpoint by running it through the tool discovery router?"}],"resultDescription":"Returns a compressed (up to 85% token reduction) list of matching MCP servers or A2A tools with capability descriptions, endpoint metadata, and Prompt-Guard firewall status — filtered for safety before delivery.","failureModes":["Query too vague — returns no matches or low-relevance results","Endpoint URL verification fails if the target is offline or non-compliant","Rate limiting or payment failure (HTTP 402) if x402 micropayment is not properly configured","Timeout if upstream MCP index is temporarily unavailable","Overly broad query returns an unmanageable number of results"],"whenToPreferThis":"Choose this endpoint when an agent needs to discover the right MCP server or A2A tool across a large index without maintaining dozens of separate connections — especially when token budget is constrained and prompt-injection safety filtering is required. Prefer it over manual tool registries when you need live, searchable coverage of 500+ tools in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:38.635Z","isFirstParty":false,"canonicalSlug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-45369aae"}