# 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 company-enrich.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Searches an index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered results for agent routing

## Facts

- Endpoint: GET https://company-enrich.agentdiet.dev/v1/tool-search?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: company-enrich.agentdiet.dev
- Website: https://company-enrich.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/company-enrich-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-83f01b96
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oQPm8CR7LOuVAMCFsl-Cg

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 company-enrich-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-83f01b96
```

Example prompt: Search the agentdiet MCP index for tools that can do 'company enrichment' and show me the top matches with their endpoints and capabilities.

## When to prefer this

Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability, especially when building multi-agent swarms or routing pipelines. Prefer it over hardcoding tool lists or maintaining your own registry, and when token-efficient tool metadata is critical. Also useful for verifying whether a specific endpoint URL is compliant with MCP/A2A standards.

## Known failure modes

- Empty or vague query returns low-relevance or no results
- Query too long or malformed returns 400 validation error
- Index may not reflect newly added MCP servers in real time
- x402 payment failure blocks access if USDC payment not configured
- Prompt-Guard firewall may redact or block certain query strings it flags as injection attempts

## 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://company-enrich.agentdiet.dev/v1/tool-search)

## Output

A list of matching MCP server or A2A tool records from the 500+ item index, with compressed metadata (85% token reduction), endpoint URLs, capability descriptions, and safety-firewall status. When given a URL as input, returns compliance/verification result for that endpoint.

## 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/company-enrich-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-83f01b96/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from company-enrich.agentdiet.dev](https://www.zero.xyz/host/company-enrich.agentdiet.dev/llms.txt)