# 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 and routes across 500+ MCP servers and A2A tools via a single meta-router connection with token compression and prompt injection firewall

## Facts

- Endpoint: GET https://sec-intel.agentdiet.dev/v1/broker/execute?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-e2509be2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PAFoaCLMtaFDJeuKDH3Is

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-e2509be2
```

Example prompt: Search across all available MCP servers and A2A tools to find the best capability for 'company enrichment' and return the top matches with compressed descriptions and safety screening.

## When to prefer this

Choose this endpoint when you need a single connection point to discover and safely route across hundreds of MCP servers and A2A tools without managing individual connections. Ideal for multi-agent swarms that need tool discovery at runtime, agents that must verify third-party MCP endpoints for prompt injection safety before use, or any workflow requiring token-compressed tool metadata to stay within LLM context limits. Prefer over manual MCP registries when safety screening and compression are priorities.

## Known failure modes

- Empty query string returns 400 validation error
- No matching tools found for niche capability query returns empty results
- Payment not received or x402 flow incomplete results in 402 response
- Prompt injection detected by Prompt-Guard firewall causes query to be blocked
- Upstream MCP server unavailable causes partial results
- Rate limiting at $0.01/call may apply under high request volume

## 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 filtered, token-compressed list of matching MCP servers or A2A tools from a 500+ endpoint index, including tool metadata, capability summaries, and safety screening results from the Prompt-Guard firewall. Response is a generic JSON object with matched tools and routing recommendations.

## 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-e2509be2/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)