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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 workflows.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 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://workflows.agentdiet.dev/v1/universal-mcp-gateway)
Output
Returns a filtered, token-compressed list of matching MCP servers and A2A tools relevant to the query, including metadata about each tool's capabilities, and safety screening results from the Prompt-Guard firewall. If an endpoint URL is supplied, returns a verification result indicating whether it is a recognized and safe MCP endpoint.
Example use cases
Discover tools for GitHub security auditing
“Find me all MCP servers or A2A tools that can handle GitHub security scanning and code auditing — show me what's available with compressed descriptions so I don't blow my token budget.”
Validate a specific MCP endpoint before use
“Can you check whether this endpoint URL is a legitimate, known MCP server: https://some-mcp-service.example.com/v1/tool — I want to verify it before my agent starts calling it.”
Route capability search for DeFi intelligence
“I need to find which MCP tools or A2A agents in the index can provide real-time DeFi and DEX trading intelligence — search the meta-router and give me the best matches.”
Technical details
Endpoint
GEThttps://workflows.agentdiet.dev/v1/universal-mcp-gateway?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to discover which MCP servers or A2A tools exist for a given capability without knowing the specific endpoint in advance, especially when token budget is a concern (85% compression) or when safety screening against prompt injection is required before routing. Prefer it over direct tool calls when building swarm or orchestration agents that need a single unified index across hundreds of MCP servers.
Side effects
- Query too vague — returns no relevant tools or overly broad matches
- Endpoint URL not found in index — returns unrecognized or unverified status
- Rate limit or payment failure via x402 — returns 402 Payment Required
- Downstream MCP server unreachable — routing result may be partial
- Prompt-Guard firewall blocks a query flagged as potentially malicious
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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