{"uid":"cap_2qZLSkats8p6IR0-5xnO5","slug":"alpha-stream-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-e17caf1c","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://alpha-stream.agentdiet.dev/v1/web-rag-shield-dag)","url":"https://alpha-stream.agentdiet.dev/v1/web-rag-shield-dag?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_kDE4XVSjdg__p4y2__bBV","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"alpha-stream.agentdiet.dev","brandSlug":"alpha-stream-agentdiet-dev-mpp","brandBaseUrl":"https://alpha-stream.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches and routes across 500+ MCP servers and A2A tools via a single connection, with token compression and prompt injection protection","exampleAgentPrompt":"Search the MCP and A2A tool index for capabilities related to 'SEC filings' and tell me which tools are available to retrieve or analyze them.","exampleUseCases":[{"title":"Discovering tools for GitHub security audits","prompt":"Search the tool index for any MCP servers or A2A agents that can do GitHub security auditing or code vulnerability scanning — I want to know what's available before I wire up my pipeline."},{"title":"Finding company enrichment agents for lead pipeline","prompt":"Can you look up what MCP or A2A tools are indexed for B2B lead enrichment and company data enrichment? I need to pick one for my sales automation workflow."},{"title":"Verifying an MCP endpoint before connecting","prompt":"Check whether this endpoint URL is a valid, safe MCP server I can route my agent to: https://some-mcp-server.example.com/api — I want to make sure it passes the safety firewall before I connect."}],"resultDescription":"Returns a list of matching MCP servers or A2A tools relevant to the query, with compressed metadata (85% token reduction), safety/firewall status, and routing details needed to connect to or invoke those tools.","failureModes":["Empty or vague query returns no results or low-relevance matches","Queried endpoint URL is unreachable or malformed, returning an error","Rate limiting or payment failure (HTTP 402) if x402 micropayment is not properly handled","Prompt injection attempt blocked by Prompt-Guard firewall, returning a rejection response","Index may not reflect newly added MCP servers in real time"],"whenToPreferThis":"Choose this endpoint when an AI agent or developer needs to dynamically discover the right MCP server or A2A tool from a large index (500+) without managing individual connections. Especially useful in multi-agent swarm architectures, when the right tool is not known in advance, or when safety filtering of tool responses is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:10.517Z","isFirstParty":false,"canonicalSlug":"alpha-stream-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-4c5998e1"}