{"uid":"cap_m6wJyXdSNBrYvKkNVrzAl","slug":"arxiv-digest-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-463c9f0e","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://arxiv-digest.agentdiet.dev/v1/bundle-execute)","url":"https://arxiv-digest.agentdiet.dev/v1/bundle-execute?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_ZQzOqqUltgpdROBWxDjTP","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"arxiv-digest.agentdiet.dev","brandSlug":"arxiv-digest-agentdiet-dev-mpp","brandBaseUrl":"https://arxiv-digest.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches an index of 500+ MCP servers and A2A agent tools by capability query, returning compressed, firewall-filtered tool routing options via a single connection","exampleAgentPrompt":"Search the MCP and A2A tool index for tools that handle 'SEC filings' so I can route my agent to the right endpoint without connecting to each server separately.","exampleUseCases":[{"title":"Route agent to GitHub audit tool","prompt":"Search the A2A and MCP tool registry for anything that does GitHub security auditing — I want to find the right server to point my agent at without manually checking hundreds of MCP endpoints."},{"title":"Discover context compression tools","prompt":"Can you look up which MCP servers or A2A tools are available for context compression? I want a single connection that routes my agent to the best one."},{"title":"Find company enrichment capability","prompt":"Search the tool index for 'company enrichment' — I need to know which A2A or MCP tools can pull tech stack data and B2B lead info so my agent can pick the right one."}],"resultDescription":"Returns a filtered, token-compressed list of matching MCP servers and A2A tools relevant to the query, including routing metadata, tool descriptors, and safety-filtered responses from the Prompt-Guard firewall. The response object contains matched tools with capability descriptions and connection details.","failureModes":["Empty or vague query returns no useful tool matches","Query terms that don't match indexed capability labels return empty results","Endpoint URL verification may fail if the target is offline or non-compliant","Token compression may strip edge-case metadata for niche tools","Rate limiting or payment failure (x402) may block access"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool provides a specific capability without hardcoding dozens of upstream connections. It is especially useful for swarm or orchestration architectures where the agent must select tools at runtime, and when token budget is a concern due to its 85% compression. Prefer this over manually curating a tool list or building direct integrations with individual MCP servers.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:10.518Z","isFirstParty":false,"canonicalSlug":"arxiv-digest-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-0860614f"}