# 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+ indexed MCP servers and A2A tools by capability query, returning compressed, firewall-filtered results via a single meta-router connection.

## Facts

- Endpoint: GET https://sec-intel.agentdiet.dev/v1/a2a-router?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-89bc189a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jmUde80bTpCrIiVTyKgfJ

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-89bc189a
```

Example prompt: Search the A2A & MCP tool index for any available endpoints that handle SEC filings or company enrichment — I want to find what tools are out there and route to the right one.

## When to prefer this

Choose this endpoint when an agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability rather than hardcoding endpoint URLs. Ideal for swarm orchestration, meta-agent architectures, or when routing across 500+ tools with token budget constraints. Prefer over manual tool registries when freshness and compression matter.

## Known failure modes

- Empty query string returns validation error (minLength:1 not met)
- No matching tools found for niche or unsupported capability queries
- Endpoint URL verification returns unknown or unindexed status
- Rate limiting or payment failure via x402 ($0.01 per call) if payment not attached
- Prompt-Guard firewall may filter or block queries that appear adversarial or injection-like

## 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-router)

## Output

Returns a compressed, token-pruned list of matching MCP servers or A2A tools relevant to the capability query, including endpoint metadata, tool descriptions, and firewall-cleared routing information — with up to 85% token compression compared to raw responses.

## 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-89bc189a/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)