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x402 Bazaar Rank
x402
x402 Bazaar Rank is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).
Returns ranked discovery data for the live x402 service market, scored by real 30-day paid calls and paying-wallet counts, with a receipt identifying the snapshot hash and scoring revision.
Price / call$0.002
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 versioned JSON object containing: market totals (listings, 30-day calls, estimated spend), per-chain breakdowns (Arbitrum, Base, Polygon, Solana, Stacks), coverage metadata (wallets, sellers, payment window), ranked service entries scored by paid calls and paying-wallet counts, and a receipt with snapshot hash and scoring revision timestamp.
Example use cases
Discovering top x402 APIs for integration
“What are the top-ranked x402 services right now by real 30-day usage? I want to see which APIs have the most paying wallets and estimated spend so I can decide which ones are worth integrating.”
Market research on x402 ecosystem health
“Give me a full breakdown of the x402 service market — total listings, call volumes, spend by chain, and the median listed price — I'm writing a report on how active the x402 ecosystem is.”
Monitoring x402 market ranking changes
“Pull the latest x402 Bazaar rankings including the snapshot hash and scoring revision, so I can compare them against last week's snapshot and see which services moved up or down.”
Technical details
Endpoint
GEThttps://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/spend?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, real-usage-ranked view of the entire x402 service market in a single call, including cross-chain spend estimates and wallet counts sourced from Coinbase CDP facilitator data and on-chain USDC scans. Prefer it over per-tag P0 Market Index endpoints when you want a holistic market overview rather than a tag-filtered leaderboard.
Side effects
- Payment not received (402 challenge returned) — caller must supply valid USDC payment via x402 protocol
- Stale snapshot — the 'stale' field may be true if the index has not refreshed within expected window
- Partial data — per-tag and per-service list entries may be illustrative placeholders rather than fully computed
- Network timeout — Cloudflare Worker cold start or upstream data latency
- Truncated response — large market snapshots may be truncated at client buffer limits
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"v": 1,
"note": "est_spend = listed price x paid calls in 30 days (an estimate). observed_onchain = USDC transfers to listed payTo addresses, not verified as x402 settlements; api_sized_usd counts transfers up to $1. Format sample: totals, coverage, cohorts and per-chain rows are our real computation of 2026-10-05; per-tag, per-service and per-pair list entries are illustrative placeholders.",
"as_of": "2026-10-04T18:24:44+00:00",
"stale": false,
"chains": [
{
"network": "solana",
"listings": 677,
"calls_30d": 59635,
"spend_share": 0.0201,
"listing_share": 0.0207,
"api_spend_share": 0.0647,
"est_spend_usd_30d": 1014.05,
"est_api_spend_usd_30d": 962.05,
"median_listed_price_usd": 0.005,
"avg_price_per_paid_call_usd": 0.017004,
"spend_weighted_median_price_usd": 0.02,
"api_spend_weighted_median_price_usd": 0.02
}
],
"labels": {
"calls_30d": "calls_30d are paid outcomes: settlements recorded by the CDP facilitator. Unpaid invocations (402 challenges, probes, failed verifies) are not observable in public data, so invocations is null.",
"invocations": null,
"paid_outcome": "a facilitator-recorded settlement (catalog calls_30d) or an on-chain transfer to a listed payTo address (scans, not verified as x402 settlements)"
},
"source": "P0 demand metrics: Coinbase CDP x402 Bazaar catalog (public) + P0 on-chain scans of USDC transfers to listed x402 payTo addresses",
"totals": {
"listings": 32663,
"calls_30d": 798152,
"api_price_max_usd": 1,
"est_spend_usd_30d": 50485.48,
"est_api_spend_usd_30d": 14870.38,
"median_listed_price_usd": 0.01,
"excluded_implausible_price": 1,
"top5_resources_spend_share": 0.7625,
"avg_price_per_paid_call_usd": 0.063253,
"spend_weighted_median_price_usd": 1000,
"api_spend_weighted_median_price_usd": 0.02
},
"coverage": {
"chains": [
"arbitrum",
"base",
"polygon",
"solana",
"stacks"
],
"sellers": 458,
"sources": [
"evm_x402_payers",
"solana_x402_payers",
"stacks_x402_payers"
],
"wallets": 1418,
"payments": 14598,
"window_to": "2026-10-04T19:31:06Z",
"window_from": "2026-07-27T12:46:06Z",
"api_price_max_usd": 1,
"sellers_with_known_host": 457,
"excluded_over_api_max_payments": 1216
},
"source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
"generated_at": "2026-10-05T00:30:00Z",
"snapshot_age_s": 600,
"observed_onchain": [
{
"chain": "arbitrum",
"wallets": 426,
"payments": 633,
"usd_payments": 633,
"api_sized_usd": 4.82,
"transfers_usd": 150878.32,
"max_transfer_usd": 25000,
"over_api_max_usd": 150873.5,
"api_sized_payments": 216,
"api_sized_usd_share": 0.011,
"transfers_usd_share": 0.4701,
"over_api_max_payments": 417
}
],
"top_tags_by_spend": [
{
"tag": "example-tag",
"listings": 5,
"calls_30d": 322,
"spend_share": 0.0024,
"listing_share": 0.0002,
"api_spend_share": 0.0081,
"est_spend_usd_30d": 120.5,
"est_api_spend_usd_30d": 120.5,
"median_listed_price_usd": 0.01,
"avg_price_per_paid_call_usd": 0.374224,
"spend_weighted_median_price_usd": 0.5,
"api_spend_weighted_median_price_usd": 0.5
}
]
}
}Tags
x402
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