# Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router — Broker Catalog

> Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router — Broker Catalog 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 and returns a catalog of 500+ indexed MCP servers and A2A agent tools matching a capability query, with token-compressed results and prompt-injection firewall.

## Facts

- Endpoint: GET https://company-enrich.agentdiet.dev/v1/broker/catalog?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-9670057c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__ieR0OMFKr_9ZtUprUmo7

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-9670057c
```

Example prompt: Search the MCP broker catalog for tools that can do company enrichment and B2B lead data — show me what's available with a query like 'company enrichment'.

## When to prefer this

Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools exist for a given capability, rather than hardcoding tool connections. Ideal for swarm orchestration scenarios where tools must be found at runtime, or when verifying whether a known endpoint URL is cataloged and compliant.

## Known failure modes

- Empty query string returns validation error (query is required, minLength 1)
- No matching tools found for obscure or misspelled capability query returns empty catalog
- Upstream MCP server index unavailable returns service error
- Malicious prompt injection in query is blocked by Prompt-Guard firewall and returns sanitized/empty response
- x402 payment failure results in 402 HTTP response before catalog is returned

## 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/broker/catalog)

## Output

Returns a token-compressed catalog of matching MCP servers and A2A tools from 500+ indexed sources, including tool names, capability descriptions, endpoint URLs, and compliance metadata. Results are filtered through a Prompt-Guard firewall to prevent injection attacks.

## 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-9670057c/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)