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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 preflight.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Searches and routes across 500+ MCP servers and A2A tools via a single meta-router endpoint with token-compressed results and prompt-injection firewall protection
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://preflight.agentdiet.dev/v1/execute)
Output
Returns a token-compressed list of matching MCP servers or A2A tools with capability metadata, routing information, and safety/verification status from the Prompt-Guard firewall layer.
Example use cases
Discover tools for GitHub security audits
“I need to find MCP servers or A2A tools that can run GitHub security audits on a repo — search the index and tell me which ones are available and what they support.”
Verify a suspicious MCP endpoint before use
“Before my agent calls this endpoint — https://some-mcp-server.example.com/tool — can you check if it's listed in the safe tool index and doesn't pose a prompt injection risk?”
Route agent swarm to context compression tools
“My agent swarm is burning too many tokens — search for MCP tools that specialize in context compression or token reduction so I can plug one in.”
Technical details
Endpoint
GEThttps://preflight.agentdiet.dev/v1/execute?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool best handles a specific capability — especially when the target tool is unknown, the agent needs safe proxying with prompt-injection protection, or token budget is constrained and compressed results are essential. Prefer this over directly hard-coding an MCP server URL when operating in a multi-tool swarm environment.
Side effects
- Empty or vague query returns no meaningful tool matches
- Endpoint URL verification may fail if the target URL is not indexed
- Rate limiting or payment failure (x402) blocks access
- Highly specialized or niche capability queries may yield zero matches among indexed 500+ servers
- Stale index may not reflect newly published MCP servers
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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