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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 an index of 500+ MCP servers and A2A tools by capability query and returns token-compressed, prompt-injection-safe tool metadata for agent routing.
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/crypto-alpha-dag)
Output
Returns a token-compressed (up to 85% reduction) list of matching MCP servers and A2A tools including their capability descriptions, routing metadata, and Prompt-Guard safety status, filtered by the submitted query or endpoint URL.
Example use cases
Routing agent swarm to right tools
“I'm building a multi-agent pipeline — can you search the MCP tool index for anything that handles 'GitHub security audits' so I know which server to route my code-review agent to?”
Verifying a known MCP endpoint
“I have this endpoint URL — can you verify it against the MCP tool registry to confirm it's a legit, safe-proxied server before my agent starts calling it?”
Discovering context compression tools
“Find me any MCP servers in the index that specialize in context compression or token budget reduction — I need to cut my agent's token usage significantly.”
Technical details
Endpoint
GEThttps://preflight.agentdiet.dev/v1/crypto-alpha-dag?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to delegate a sub-task to, especially in swarm or multi-agent architectures where capability routing is automated. Prefer it over hardcoded tool registries when the ecosystem of available tools is large (500+) and changes frequently, or when prompt-injection safety screening of tool metadata is required before routing.
Side effects
- Empty or vague query returns zero or low-relevance results
- Submitted endpoint URL not found in the index returns null match
- Query too broad returns overwhelming unranked results
- Payment not processed (HTTP 402) if x402 credentials are missing or insufficient
- Network timeout if the meta-router index is being refreshed
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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