{"uid":"cap_M7jm8U17Zn_DdIg7icwTz","slug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-8b3023c2","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":"POST","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_cnNKlS0EaNH6qi3FOL_pP","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 results through a single connection.","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that can handle SEC filings retrieval — I need the best available tool routed through a single safe connection with token compression.","exampleUseCases":[{"title":"Discovering a GitHub audit tool","prompt":"Search the MCP tool index for something that can audit a GitHub repo for license risk and dependency vulnerabilities — find the best available tool and give me its details."},{"title":"Routing to a company enrichment agent","prompt":"I need to enrich some B2B leads with company data — can you search the A2A and MCP registry for the best tool that handles company enrichment or B2B lead data?"},{"title":"Finding a context compression capability","prompt":"Look through the 500+ MCP servers for any tool that does context compression or token reduction — I want to route my agent's output through whichever one is most effective."}],"resultDescription":"A compressed, Prompt-Guard-filtered list of matching MCP servers or A2A tools relevant to the query, including tool metadata, endpoint references, and capability summaries — delivered with up to 85% token compression to minimize context overhead.","failureModes":["Query too vague — returns no confident matches from the index","Endpoint URL verification fails if the URL is unreachable or malformed","Rate limiting or payment failure (HTTP 402) if x402 USDC payment is not satisfied","Prompt-Guard firewall blocks adversarial or injection-laden queries","Index may not reflect recently added MCP servers if not yet crawled"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to use for a task at runtime, rather than hard-coding a specific tool. It is especially useful in multi-agent swarm architectures where the right tool is not known in advance, or when you want a single safe proxy connection with token-compressed responses and built-in prompt injection protection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T06:45:12.501Z","isFirstParty":false,"canonicalSlug":"hn-pulse-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-45369aae"}