{"uid":"cap_AtYh8vJCc2s1r2Oi5hEYQ","slug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-45369aae","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/workflows)","url":"https://hn-pulse.agentdiet.dev/v1/workflows?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__HV3JKcNFwLSztHAD9cmI","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 tool discovery results via a single connection.","exampleAgentPrompt":"Search the MCP and A2A tool index for any available tools that handle 'SEC filings' retrieval — I want to find a safe, compressed connection to a compatible server I can route through.","exampleUseCases":[{"title":"Discover tools for GitHub security auditing","prompt":"Find me any MCP servers or A2A tools in the index that can do GitHub security auditing — I need to know what's available before wiring up my agent pipeline."},{"title":"Route agent requests through prompt firewall","prompt":"Search the tool index for a safe-proxy endpoint that includes a prompt firewall so my swarm agents can call external tools without injection risk."},{"title":"Find company enrichment tools for B2B pipeline","prompt":"Look up what tools are indexed under 'company enrichment' — I'm building a B2B lead pipeline and need to know which A2A or MCP endpoints support that capability."}],"resultDescription":"A compressed (up to 85% token reduction) list of matching MCP servers or A2A tools relevant to the capability query, including metadata about each tool, firewall status, and routing information. May also include compliance/verification results if an endpoint URL is provided as the query.","failureModes":["Missing or empty query parameter returns validation error","No matching tools found for the given capability query returns empty result set","Queried endpoint URL is unreachable or non-compliant returns audit failure","Rate limiting or payment failure (HTTP 402) blocks the request","Firewall (Prompt-Guard) may reject queries it classifies as adversarial"],"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. Especially useful for swarm orchestration, agent pipeline bootstrapping, or when you need a single-connection meta-router with built-in prompt injection protection and token-compressed responses.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:50.999Z","isFirstParty":false,"canonicalSlug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-45369aae"}