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

## Facts

- Endpoint: POST https://sec-intel.agentdiet.dev/v1/a2a-mesh?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-4ab2d337
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_M5RMOSCQKvsaP00vALSIN

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-4ab2d337 -d '<json body>'
```

Example prompt: Search the A2A mesh for any tools that handle SEC filings or financial intelligence — I want to route my agent's query through the meta-router and get back a compressed list of matching MCP servers.

## When to prefer this

Choose this endpoint when an AI agent needs to discover and route across a broad ecosystem of 500+ MCP servers or A2A tools without managing individual connections. Prefer it over directly calling individual MCP servers when you want token-efficient, prompt-injection-safe aggregation from a single endpoint. Ideal for swarm orchestration scenarios where the right downstream tool is not yet known.

## Known failure modes

- Empty or too-short query string returns validation error
- No matching tools found for obscure capability query returns empty results
- Upstream MCP server unavailable causes partial or degraded routing response
- Payment not processed (x402) returns 402 Payment Required
- Idempotency-Key collision may return cached prior response unexpectedly

## 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/a2a-mesh)

## Output

Returns a compressed (up to 85% token reduction) list of matching MCP servers or A2A tools relevant to the query, including routing metadata and prompt-guard filtered responses. The response object includes tool identifiers, capability descriptions, and any proxied output from the matched tools.

## 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-4ab2d337/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)