{"uid":"cap_Dbx13Ia7x-jm23yDdtaJm","slug":"onchain-risk-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-17d53e9b","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://onchain-risk.agentdiet.dev/v1/a2a-mesh)","url":"https://onchain-risk.agentdiet.dev/v1/a2a-mesh?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_p-vBkZJKxQdSbZHkjhXnK","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"onchain-risk.agentdiet.dev","brandSlug":"onchain-risk-agentdiet-dev-mpp","brandBaseUrl":"https://onchain-risk.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches and routes to 500+ indexed MCP servers and A2A tools via a single meta-router endpoint with token compression and prompt injection firewall.","exampleAgentPrompt":"Search the A2A and MCP tool index for any servers that handle SEC filings or company enrichment, and route me to the best match with token-compressed output.","exampleUseCases":[{"title":"Finding a GitHub security audit tool","prompt":"Search the MCP tool index for something that can do GitHub security audits — I need to scan a repo for vulnerabilities and want to know which agent or server to call."},{"title":"Routing to on-chain risk analysis","prompt":"Find me an MCP server or A2A tool in your index that handles on-chain risk scoring for DeFi tokens — I want to plug my agent into it directly."},{"title":"Discovering email verification capability","prompt":"I need an agent tool that can verify email addresses at scale — search the meta-router index for any MCP servers covering email verification and give me the best option."}],"resultDescription":"Returns a list of matching MCP server endpoints or A2A tool descriptors from the 500+ indexed registry, with 85% token-compressed manifests and Prompt-Guard firewall screening applied. Each result includes routing metadata and capability summaries for the matching tools.","failureModes":["Empty query string returns validation error","No matching tools found returns empty result set","Prompt injection attempt blocked by Prompt-Guard firewall","x402 payment required if micropayment not settled","Indexed server may be stale or offline if index is not current","Overly broad query returns too many low-relevance results"],"whenToPreferThis":"Use this endpoint when an agent needs to dynamically discover which MCP servers or A2A tools can fulfill a capability at runtime, rather than hardcoding tool endpoints. Ideal for swarm orchestration, meta-routing across heterogeneous tool ecosystems, and when token budget is constrained (85% compression). Prefer over manual tool registries when breadth of coverage (500+ servers) matters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:51:21.352Z","isFirstParty":false,"canonicalSlug":"onchain-risk-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-0c8aadb4"}