# 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 2026-10-23).

Searches across 500+ MCP servers and A2A tools by natural language capability query and routes execution through a token-compressed, prompt-injection-filtered proxy.

## Facts

- Endpoint: POST https://sec-intel.agentdiet.dev/v1/broker/execute?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- 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-769bfbf9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_y_vTQqL6wfJSWQPXIOije

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-769bfbf9 -d '<json body>'
```

Example prompt: Search the MCP and A2A tool index for any available tools that handle 'SEC filings' and route my query through the safe proxy with prompt-injection filtering enabled.

## When to prefer this

Choose this endpoint when you need a single connection point to discover, evaluate, and safely proxy calls across a large ecosystem of MCP servers and A2A tools — especially when token budget is a concern (85% compression) or when untrusted tool responses need prompt-injection screening. Prefer over direct MCP connections when you lack pre-existing knowledge of which tool to call, need to search by capability, or require a firewall layer between your agent and external tool responses.

## Known failure modes

- Query string too vague — no matching tools found in the index
- Targeted endpoint URL fails validation or is unreachable during proxy
- Prompt-Guard firewall blocks the request due to detected injection patterns
- Payment not processed (HTTP 402) when $0.01 per-call credit is absent
- Idempotency-Key collision causes replayed response instead of fresh execution
- Upstream MCP server timeout causes empty or partial result

## 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/broker/execute)

## Output

Returns a structured response (schema varies by routed tool) containing matched MCP servers or A2A tools, compressed results with up to 85% token reduction, and any prompt-injection warnings or firewall flags triggered during proxying.

## 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-769bfbf9/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)