# 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 sec-intel.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Searches a meta-index of 500+ MCP servers and A2A tools by capability query, returning token-compressed results through a prompt-injection firewall

## Facts

- Endpoint: GET https://sec-intel.agentdiet.dev/v1/x402-gateway?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: sec-intel.agentdiet.dev
- Website: https://sec-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/sec-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b81a680d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VdqtbEDTyNijzmhJV3giG

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sec-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b81a680d
```

Example prompt: Search the MCP and A2A tool index for anything that can handle SEC filings or company enrichment — I want a list of available tools with compressed descriptions so I can pick the best one for my workflow.

## When to prefer this

Choose this endpoint when an agent needs to dynamically discover which MCP servers or A2A tools exist for a given capability, especially when token budget is a concern and prompt-injection safety is required. Prefer this over maintaining a static tool registry or manually curating a list of MCP endpoints.

## Known failure modes

- Empty query returns validation error
- Query too vague returns low-relevance or empty results
- Endpoint URL verification may return timeout if remote server is down
- Payment required (HTTP 402) if x402 credentials are missing or invalid
- Index may not reflect newly submitted MCP servers immediately

## 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://sec-intel.agentdiet.dev/v1/x402-gateway)

## Output

A token-compressed, firewall-screened list of matching MCP servers and A2A tools from a 500+ item index, including tool names, capability summaries, and relevant metadata — delivered with up to 85% token reduction compared to raw tool manifests.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "query": {
   "type": "string",
   "minLength": 1,
   "description": "Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sec-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b81a680d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sec-intel.agentdiet.dev](https://www.zero.xyz/host/sec-intel.agentdiet.dev/llms.txt)