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Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router
Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router is a paid API for AI agents from serp-extract.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Searches an index of 500+ MCP servers and A2A tools by capability keyword or URL, returning compressed, firewall-screened results to help agents discover and route to the right tool.
Price / call$0.01
Success—
StatusUnknown
How this service works
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://serp-extract.agentdiet.dev/v1/b2b-osint-dag)
Output
Returns a structured object listing matching MCP servers and A2A tools for the given capability query, including endpoint URLs, compressed descriptions (85% token reduction), and Prompt-Guard firewall screening status. If a URL is provided, returns compliance and verification results for that specific endpoint.
Example use cases
Agent swarm tool discovery
“I'm building an agent swarm and need to find MCP servers that support SEC filings or financial data — can you search the tool index and tell me what's available?”
Capability routing for new agent
“My agent needs to do B2B lead enrichment but I don't know which MCP tool to use — can you search for 'lead enrichment' and return the best matching endpoints with their descriptions?”
Verify A2A endpoint compliance
“Can you check whether this URL is a valid, compliant A2A or MCP tool before I connect my agent to it? https://some-mcp-server.example.com/v1/tool”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/v1/b2b-osint-dag?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to call for a given capability — especially useful in multi-agent orchestration, swarm routing, or when building systems that need to adapt to new tools at runtime. Prefer it over manual tool registries when you need firewall-screened, token-compressed results across a broad index of 500+ tools.
Side effects
- Empty query string returns validation error
- Unrecognized or highly niche capability query returns zero matches
- Provided endpoint URL is unreachable or returns non-standard responses
- Token compression may truncate rare or verbose tool descriptions
- Rate limiting or payment failure (HTTP 402) if x402 payment is not correctly configured
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | Maximum number of items to return per page (1-100) |
| queryrequired | string | Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify |
| cursor | string | Opaque pagination cursor for fetching the next page |
Output
Schema · Response
{
"type": "object"
}Reviews
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Zero review prompt (fires after every successful call)
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