# P0 Agent Economy Index – Dice Tag Discovery

> P0 Agent Economy Index – Dice Tag Discovery is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-23).

Returns ranked x402 services tagged 'dice', scored by 30-day real paying-wallet activity, alongside economy-wide agent/server counts and transaction metrics across major agent protocols.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-dice?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/p0-agent-economy-index-dice-tag-discovery-753cdde3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RmGF3jp5GFRo_UG-LlS7z

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-dice-tag-discovery-753cdde3
```

Example prompt: Show me the top 25 dice-tagged x402 services right now, ranked by 30-day unique paying wallets, with their call counts and prices — and include the economy-wide agent protocol stats for context.

## When to prefer this

Choose this endpoint when you specifically need ranked discovery of x402 services in the 'dice' category scored by real paying-wallet activity — not just a static directory. Prefer it over generic API directories when you need live 30-day usage signals, micropayment price data, and cross-protocol agent economy context in a single call. It is not suitable for L402, per-service MPP listings, or non-dice tag queries (use the sibling endpoints for other tags).

## Known failure modes

- Stale snapshot if underlying index has not refreshed within its update window
- Empty results list if no x402 services are currently tagged 'dice'
- Partial protocol data if upstream agent registries (Olas, Masumi, etc.) are unavailable
- HTTP 402 if payment of $0.008 USDC is not submitted correctly
- Schema mismatch if upstream x402scan or probe data format changes

## 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: the count of returned results, the query parameters used (ranking by payers, top 25, dice tag), total matched services, an ordered list of x402 service entries each with name, network, 30-day calls, USD price, resource URL, and 30-day unique payers, the declaration source, and a generatedAt timestamp. Also includes cross-protocol agent economy figures (agent/server counts, transaction metrics, USD volumes where published) for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004, Solana agent registries, Base agent contracts, and the Official MCP Registry.

## 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": "dice"
   }
  },
  "route": "/in-dice",
  "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-dice-tag-discovery-753cdde3/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)