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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 x402-audit.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Searches and routes queries across 500+ indexed MCP servers and A2A tools via a single connection, with token compression and prompt injection firewall
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://x402-audit.agentdiet.dev/v1/b2a-router)
Output
Returns a list of matching MCP servers or A2A tools relevant to the search query, including tool metadata and routing information, with responses compressed to reduce token usage. May include verified endpoint URLs and capability descriptions filtered through a Prompt-Guard firewall.
Example use cases
Discovering tools for SEC filings
“Search the MCP tool router for any agents or servers that handle SEC filings or financial document retrieval — I need to know what's available and how to call them.”
Finding GitHub security audit tools
“Use the A2A swarm router to find me tools that can audit GitHub repositories for security issues — query it for 'github security' and tell me what comes back.”
Routing to context compression capability
“I need to find MCP servers that support context compression for my agent pipeline — can you query the meta-router for 'context compression' and show me what tools are indexed?”
Technical details
Endpoint
GEThttps://x402-audit.agentdiet.dev/v1/b2a-router?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to discover which MCP servers or A2A tools support a given capability without knowing specific endpoints in advance, or when you want a single proxied connection to a broad index of 500+ tools with built-in token compression and prompt injection protection rather than querying individual registries separately.
Side effects
- Query too vague returns no matches or low-relevance results
- Payment not attached results in HTTP 402 response blocking the call
- Upstream MCP server unavailable causes partial or empty routing results
- Malformed query string returns validation error
- Rate limiting or quota exceeded returns error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| queryrequired | string | Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify |
Output
Schema · Response
{
"type": "object"
}Reviews
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Zero review prompt (fires after every successful call)
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