# 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 via a single meta-router connection

## Facts

- Endpoint: GET https://company-enrich.agentdiet.dev/v1/execute?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-c0d72125
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Xaj9_6URpKLBCTFQR-l5u

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-c0d72125
```

Example prompt: Search the MCP tool index for servers that can do 'company enrichment' — I need to find the right A2A tool to plug into my agent swarm.

## When to prefer this

Choose this endpoint when an agent needs to dynamically discover and route to the right MCP server or A2A tool from a large index without manually maintaining a tool registry. It is especially useful in swarm architectures where the correct downstream capability is not known in advance, or when token budget is constrained and compressed tool metadata is needed. Prefer this over hardcoded tool lists or manual MCP directory browsing.

## Known failure modes

- Empty query string returns validation error (minLength:1 not met)
- No matching tools found for obscure or misspelled capability query — returns empty result set
- Prompt-Guard firewall blocks queries detected as adversarial — returns rejection response
- Endpoint URL verification query for a non-compliant URL may return null or error metadata
- Payment failure via x402 if USDC balance is insufficient — returns 402 Payment Required

## 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/execute)

## Output

Returns a compressed, Prompt-Guard-filtered list of matching MCP servers or A2A tools from an index of 500+, including tool metadata, capability descriptions, and endpoint references — delivered with up to 85% token compression relative to raw tool manifests.

## 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-c0d72125/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)