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P0 Agent Economy Index – Wallet Retention & Repeat-Rate Analytics
x402
P0 Agent Economy Index – Wallet Retention & Repeat-Rate Analytics 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 2026-10-23).
Returns repeat-payer and retention cohort metrics for the x402 agent-economy service market, including repeat rates, loop-flagged pairs, and per-cohort return windows computed from on-chain USDC payment data.
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 JSON object containing: overall repeat-rate statistics (total pairs, repeat pairs, repeat rate), per-cohort return rates for 7-day, 28-day, and 84-day windows, loop-flagged pair counts, session-collapse rules, coverage metadata (chains, wallets, sellers, payment count, observation window), data source attribution, snapshot timestamp, and a staleness flag. Units and methodology notes are included inline.
Example use cases
Measuring x402 service stickiness
“What's the current repeat-payer rate across x402 services? Show me the 7-day and 28-day cohort return rates and tell me how many wallet-service pairs came back more than once.”
Detecting automated loop activity
“How many wallet-service pairs in the x402 market are flagged as automated loops or scanner bots right now, and what's the methodology used to identify them?”
Benchmarking agent economy engagement
“I'm writing a report on the machine-to-machine payment economy — can you fetch the latest retention snapshot from the P0 index, including total pairs observed, repeat pairs, and which blockchains are covered?”
Technical details
Endpoint
GEThttps://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/retention?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need quantitative retention and repeat-payer analytics specifically for the x402 micropayment service market, including cohort breakdowns and loop-detection flags. Prefer it over general blockchain analytics when you want pre-computed, methodology-documented metrics across the live x402 bazaar rather than raw on-chain queries. Not appropriate for per-service rankings (use the /rank route), L402 data, or non-x402 agent protocols.
Side effects
- Stale data: 'stale' field set to true if the snapshot has not been refreshed within the expected cadence
- Truncated response: large coverage arrays may be truncated in transit
- No 84-day cohort data: eligible_pairs=0 if the index is too young for that window
- Service unavailable: Cloudflare Worker cold-start or origin timeout returns 5xx
- Partial on-chain scan coverage: repeat rates are stated as lower bounds because scanner samples are not full wallet histories
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"v": 1,
"note": "Scanner samples, not full wallet histories: repeat rates are lower bounds. 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.",
"rule": {
"loop": "4+ sessions at near-constant intervals (cv < 0.15), a service whose only payer is one wallet, or a scanner automation flag",
"repeat": "first and last payment session of a (wallet, service) pair at least 24 h apart",
"service": "one payTo address (seller) on one chain",
"same_session_retries": "payments of one pair within 30 min are one session"
},
"as_of": "2026-10-04T18:24:44+00:00",
"stale": false,
"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",
"cohorts": {
"week_1": {
"days": 7,
"note": null,
"rate": 0.1819,
"eligible_pairs": 2391,
"returned_pairs": 435
},
"week_4": {
"days": 28,
"note": null,
"rate": 0.3136,
"eligible_pairs": 727,
"returned_pairs": 228
},
"week_12": {
"days": 84,
"note": "no pair is old enough in the observed window",
"rate": null,
"eligible_pairs": 0,
"returned_pairs": 0
}
},
"overall": {
"pairs": 3287,
"repeat_rate": 0.2367,
"repeat_pairs": 778,
"retries_collapsed": 6852,
"loop_flagged_pairs": 146
},
"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
},
"services": [
{
"host": "api.example-seller.dev",
"chain": "base",
"payers": 120,
"seller": "0x0000000000000000000000000000000000000001",
"payments": 238,
"sessions": 182,
"repeat_rate": 0.225,
"repeat_payers": 27,
"loop_flagged_payers": 2,
"top_wallet_payment_share": 0.0336,
"median_payments_per_payer": 1
}
],
"source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
"generated_at": "2026-10-05T00:30:00Z",
"services_total": 500,
"snapshot_age_s": 600,
"cohorts_excluding_loops": {
"week_1": {
"days": 7,
"note": null,
"rate": 0.1688,
"eligible_pairs": 2304,
"returned_pairs": 389
},
"week_4": {
"days": 28,
"note": null,
"rate": 0.299,
"eligible_pairs": 699,
"returned_pairs": 209
},
"week_12": {
"days": 84,
"note": "no pair is old enough in the observed window",
"rate": null,
"eligible_pairs": 0,
"returned_pairs": 0
}
},
"overall_excluding_loops": {
"pairs": 3141,
"repeat_rate": 0.212,
"repeat_pairs": 666
}
}
}Tags
x402
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