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x402 Bazaar Rank – In-Headers Services
x402
x402 Bazaar Rank – In-Headers Services 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 2026-10-15).
Returns a ranked list of x402 services tagged 'headers', scored by real 30-day call volume and unique paying wallets, with a snapshot hash and scoring revision receipt.
Price / call$0.032
Success—
StatusUnknown
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: total matched service count, the query parameters used (ranking by top payers, limit, tag filter), the route, a list of up to 25 services each with name, network, 30-day call count, USD price, resource URL, and 30-day unique payer count, plus metadata fields for who declared the data, a snapshot hash, and a generation timestamp.
Example use cases
Discover trending header manipulation APIs
“Which x402 services tagged 'headers' have attracted the most paying wallets in the last 30 days? Give me the top 25 with their call counts and prices.”
Vet a header service before integrating
“I'm about to integrate an x402 header service into my pipeline — can you pull the ranked list of header services and show me the snapshot hash so I can confirm I'm looking at the latest scoring revision?”
Market research on header API pricing
“I want to compare prices across the most popular x402 header services. Show me the top services in the headers category ranked by 30-day calls, including their USD prices and paying wallet counts.”
Technical details
Endpoint
GEThttps://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-headers?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real usage-backed discovery of x402 services specifically tagged 'headers', rather than static or unverified service directories. It is ideal when you want to rank candidates by actual market demand (paying wallets and call volume) rather than self-reported metrics, and when auditability via snapshot hash matters.
Side effects
- No services indexed under the 'headers' tag — returns empty services array
- Snapshot data stale if indexer has not refreshed — generatedAt timestamp will be old
- Rate limit or payment failure for the $0.032 USDC call — 402 response requiring fresh payment
- Worker cold-start latency on Cloudflare edge causing slower-than-expected response
- Malformed response if scoring revision changes schema without notice
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 25,
"query": {
"by": "payers",
"op": "top",
"limit": 25,
"where": {
"tag": "headers"
}
},
"route": "/in-headers",
"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"
}
}Tags
x402
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