{"uid":"cap_m-v2zOym0GcPsQq7K64Tm","slug":"arxiv-digest-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-92888a36","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/execute)","url":"https://arxiv-digest.agentdiet.dev/v1/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_1VtnWmUdmoQYe5Bk4Gw7v","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 and routes across 500+ MCP servers and A2A agent tools via a single connection, with token compression and prompt injection firewall","exampleAgentPrompt":"Can you search the MCP tool index for any servers that handle SEC filings or company enrichment, and route me to the best match with compressed context?","exampleUseCases":[{"title":"Finding a context compression tool","prompt":"Search the MCP index for any agent tools that do context compression or token reduction — I want to cut down the size of my prompts before sending them to my LLM."},{"title":"Verifying an MCP endpoint before use","prompt":"Can you check if this URL is a valid, compliant MCP endpoint before I wire it into my agent pipeline? Here it is: https://some-mcp-server.example.com/rpc"},{"title":"Discovering GitHub security audit tools","prompt":"I need an agent tool that can audit a GitHub repo for security vulnerabilities — search the A2A and MCP tool index and tell me what's available."}],"resultDescription":"Returns a filtered list of matching MCP servers or A2A tools relevant to the query, with compressed metadata (85% token reduction), tool descriptions, and endpoint routing details. When given a URL, returns compliance and verification status for that endpoint.","failureModes":["Query too vague returns broad or unhelpful tool matches","Endpoint URL verification fails if the target server is offline or non-compliant","No matching tools found for niche or unsupported capability queries","Token compression may lose fine-grained schema details for complex tools","Rate limiting or payment failure at $0.01/call via x402 if wallet is not configured"],"whenToPreferThis":"Use this endpoint when you need a single connection to discover, search, or route across hundreds of MCP servers and A2A tools without integrating each one individually. Ideal for agent orchestrators, swarm planners, or developers building multi-tool pipelines who want to dynamically find the right capability at runtime rather than hardcoding tool integrations. The built-in Prompt-Guard firewall makes it safer than calling unknown tool endpoints directly.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:58.899Z","isFirstParty":false,"canonicalSlug":"arxiv-digest-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-0860614f"}