# P0 Agent Economy Index – Agent Skill Services

> P0 Agent Economy Index – Agent Skill Services is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.048/call, status unknown (last checked 2026-10-18).

Returns the top x402 services tagged 'agent-skill', ranked by 30-day unique paying wallets, with call counts, pricing, and payer metrics.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-agent-skill?utm_source=zero.xyz
- Price: $0.048/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/p0-agent-economy-index-agent-skill-services-c29bd526
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pwgKQ2EBEtBvH9f8zyP6i

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-agent-skill-services-c29bd526
```

Example prompt: Show me the top 25 agent-skill services in the x402 economy right now, ranked by how many unique paying wallets used them in the last 30 days — I want to see which capabilities real agents are actually paying for.

## When to prefer this

Use this endpoint when an agent needs to discover which x402 services tagged 'agent-skill' are most economically active, validated by real 30-day paying-wallet data rather than self-reported metrics. Prefer this over generic API directories when you need usage-weighted ranking specific to the agent economy, or when you need a verifiable snapshot receipt for auditing which agent-skill services were ranked at a given point in time.

## Known failure modes

- No services match the agent-skill tag — returns empty services array with matched:0
- Snapshot data may be stale if the indexer has not refreshed within the current window
- Network errors from Cloudflare Worker returning 5xx if upstream index is unavailable
- Malformed response if the scoring revision changes and schema shifts unexpectedly

## 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 agent-skill tagged x402 services, each with name, network identifier, 30-day call count, price in USD, resource URL, and 30-day unique paying wallet count; also includes total matched service count, query metadata, snapshot generation timestamp, and a receipt identifying the snapshot hash and scoring revision.

## 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": "agent-skill"
   }
  },
  "route": "/in-agent-skill",
  "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-agent-skill-services-c29bd526/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)