# P0 Agent Economy Index — Markdown Services Discovery

> P0 Agent Economy Index — Markdown Services Discovery is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.032/call, status unknown (last checked 2026-10-22).

Returns ranked discovery of live x402 markdown-tagged services plus cross-protocol agent economy statistics (Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004, Solana, Base, MCP), scored by real 30-day call and payer data.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-markdown?utm_source=zero.xyz
- Price: $0.032/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/p0-agent-economy-index-markdown-services-discovery-5a3dfa37
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_px5TaTbHbbj4a0lQmpcv5

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 p0-agent-economy-index-markdown-services-discovery-5a3dfa37
```

Example prompt: Pull the current x402 Bazaar agent economy index for markdown-tagged services — show me the top 25 ranked by paying wallets over the last 30 days, with their call counts, prices, and network IDs, plus the snapshot hash for the receipt.

## When to prefer this

Use this endpoint when an agent needs ranked, real-usage-backed discovery of x402 markdown-tagged services with payer and call data, or when building a cross-protocol view of the agent economy spanning Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004, Solana, Base, and MCP. Prefer it over generic API directories when you need verifiable 30-day activity metrics and a cryptographic receipt. Do not use it for L402 listings, per-service MPP detail, or service categories outside the markdown tag (use sibling endpoints for other tags).

## Known failure modes

- Upstream x402scan or probe:402 data unavailable — may return stale or partial snapshot
- Protocol sources (Olas, Masumi, etc.) not publishing figures — those fields will be absent or null
- Payment of 0.032 USDC not completed — 402 Payment Required response
- No services matching the markdown tag in the current window — empty services array
- Rate limiting or Cloudflare Worker cold start — slow or 503 response

## How this service works

An open index of the machine-to-machine (agent) economy. x402 routes: ranked discovery over the live x402 service market, every indexed service scored by real 30-day calls and paying-wallet bounds, with a receipt naming the snapshot hash and scoring revision. /economy routes, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry): each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 and per-service MPP listings are not covered.

## Output

A JSON object containing a ranked list of up to 25 x402 services tagged 'markdown', each with name, network, 30-day calls, price in USD, resource URL, and 30-day payer count; plus a query descriptor, total matched count, snapshot timestamp, and a receipt with snapshot hash and scoring revision. Separately, per-protocol figures for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004, Solana agent registries, Base agent contracts, and official MCP Registry — each with agent/server counts, transaction or payment events, payer counts (x402 and Tempo MPP only), and USD volume (x402 and Virtuals ACP only), with units, window, and source noted.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 25,
  "query": {
   "by": "payers",
   "op": "top",
   "limit": 25,
   "where": {
    "tag": "markdown"
   }
  },
  "route": "/in-markdown",
  "matched": 359,
  "services": [
   {
    "name": "forecast api",
    "network": "eip155:8453",
    "calls30d": 310,
    "priceUsd": 0.01,
    "resource": "https://api.example.com/forecast",
    "payers30d": 42
   }
  ],
  "declaredBy": "agent",
  "generatedAt": "2026-09-17T12:00:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/p0-agent-economy-index-markdown-services-discovery-5a3dfa37/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev](https://www.zero.xyz/host/x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/llms.txt)