# P0 Agent Economy Index – Registry Route

> P0 Agent Economy Index – Registry Route 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 data for agent registry protocols (Virtuals ACP, Olas, Masumi, ERC-8004, Solana, Base, MCP) with per-protocol published figures such as agent/server counts, transaction events, payers, and USD volume.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-registry?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-registry-route-6eff3da6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tQSTYt7edeQUTR6GjJebI

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-registry-route-6eff3da6
```

Example prompt: Pull up the current agent economy index for the registry sector — I want to see how protocols like Olas, Virtuals ACP, Masumi, ERC-8004, Solana, Base agent contracts, and the official MCP Registry compare by agent counts, transactions, and any payer or USD volume figures they publish.

## When to prefer this

Use this endpoint when you need a cross-protocol, normalized view of the agent registry ecosystem (Virtuals ACP, Olas, Masumi, ERC-8004, Solana, Base, MCP) with official published figures. Prefer this over the x402 market index routes when your focus is on agent/server registry counts and protocol-level activity rather than individual x402 service rankings. Ideal for market research, competitive analysis, or due diligence on agent economy scale.

## Known failure modes

- Payment not included or malformed — endpoint requires $0.032 USDC via x402 protocol, returns 402 Payment Required
- Invalid or unsupported tag parameter — returns empty result set or 400 error
- Snapshot data stale if underlying registry sources have not refreshed — generatedAt timestamp indicates data age
- Protocol source temporarily unavailable — partial result set returned with available protocols only
- Rate limit or quota exceeded — returns 429 Too Many Requests

## 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 response listing matched registry-tagged services, each with protocol name, agent or server count, transaction or payment event figures, payer counts and USD volume where the source publishes them, along with the data window, source attribution, snapshot hash, and scoring revision timestamp. Units differ across protocols so figures are not summed into a total.

## 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": "registry"
   }
  },
  "route": "/in-registry",
  "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-registry-route-6eff3da6/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)