# 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 2026-10-28).

Searches and routes to 500+ MCP servers and A2A tools via a single connection, with token compression and prompt-injection firewall protection

## Facts

- Endpoint: POST https://sec-intel.agentdiet.dev/v1/security-audit-dag?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-28
- 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-75f056a2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XPMSqFbDQs4MUQS-mOcMR

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-75f056a2 -d '<json body>'
```

Example prompt: Search the MCP tool index for any available servers that handle 'SEC filings' or 'company financial intelligence' — I want to find the right tool to route my agent to.

## When to prefer this

Choose this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to call for a given capability, rather than hardcoding a single tool. Especially useful in swarm or multi-agent architectures where tool routing must be dynamic. Also prefer this when token budget is a concern, since results are compressed 85%, or when you need firewall-safe proxying before connecting to an unknown third-party MCP server.

## Known failure modes

- Empty or vague query returns no useful matches
- Unknown or unlisted endpoint URL cannot be verified
- Rate limiting or payment failure (x402) blocks the request
- Firewall flags a query as potentially adversarial and rejects it
- Network timeout if the meta-router index is temporarily unavailable

## 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/security-audit-dag)

## Output

Returns a ranked list of matching MCP servers or A2A tools relevant to the search query, with metadata such as capability descriptions, endpoint URLs, token-compression stats, and firewall verification status. Results are compressed to reduce token consumption in agent workflows.

## 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-75f056a2/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)