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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 json-repair.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, returning compressed, firewall-screened tool metadata via a single meta-router connection.
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://json-repair.agentdiet.dev/v1/x402-gateway)
Output
Returns a compressed list of matching MCP servers or A2A tools relevant to the query, including tool names, capability summaries, and endpoint metadata. Results are filtered through a Prompt-Guard firewall to reduce prompt injection risk, and descriptions are token-compressed by approximately 85% for efficient agent consumption.
Example use cases
Discovering a context compression tool
“Can you search the MCP tool index for anything that handles context compression? I want to find an available server I can plug into my agent pipeline.”
Finding GitHub security audit tools
“Look up what MCP servers or A2A tools are available for GitHub security scanning — I need something that can audit repos and check for supply-chain vulnerabilities.”
Verifying an endpoint before routing
“Can you check if this endpoint URL is listed and safe in the MCP index before I route my agent traffic through it: https://some-tool.example.com/v1/api?”
Technical details
Endpoint
GEThttps://json-repair.agentdiet.dev/v1/x402-gateway?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to delegate a task to, rather than hard-coding a specific tool. Ideal for swarm orchestration, meta-agent routing, or when building agents that must self-select tools at runtime. Prefer over manual tool registries when you need firewall-filtered, token-compressed results across a large index of 500+ servers in a single call.
Side effects
- Empty or vague query returns no meaningful matches
- Queried endpoint URL not present in the index returns a not-found status
- Rate limiting or payment failure (x402) blocks the response
- Index may lag behind newly published MCP servers not yet crawled
- Prompt-Guard firewall may over-filter legitimate tool descriptions containing security-related terms
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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