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x402 Autopay Policy Engine
x402
x402 Autopay Policy Engine is a paid API for AI agents from x402-endpoint-risk-corpus.mtree.workers.dev, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-15).
Evaluates payee reputation and a proposed x402 call plan to produce an allow/allow_with_limits/manual_review/deny decision plus spending caps for autonomous payments
Price / call$0.2
Success—
StatusUnknown
How this service works
Turn payee reputation and a proposed call plan into allow / allow_with_limits / manual_review / deny plus caps for autonomous x402 payment. Returns JSON. Price 0.20 USDC on Base via x402. Demo/preview: https://x402-endpoint-risk-corpus.mtree.workers.dev/demo/autopay_policy. Contact: https://x402-endpoint-risk-corpus.mtree.workers.dev/contact.
Output
A JSON object containing a policy decision (one of: allow, allow_with_limits, manual_review, deny), recommended per-call and daily spending caps, payee reputation signals from the corpus, and reasoning for the classification.
Example use cases
Example prompt
“Before my agent auto-pays for calls to this x402 endpoint at payTo address 0xABC...123 on the domain api.example.com, run an autopay policy check — should it allow, allow with limits, send for manual review, or deny, and what spending caps should I set?”
Technical details
Endpoint
POSThttps://x402-endpoint-risk-corpus.mtree.workers.dev/v1/x402/autopay_policyWhen to prefer
Use this endpoint when an AI agent needs a pre-authorization risk assessment before executing an autonomous x402 micropayment — especially when the payee is unknown, the payment is recurring, or spending caps need to be established. Prefer this over manual research when you need a structured allow/deny decision backed by observed corpus data.
Side effects
- Unknown payee wallet with no corpus history returns low-confidence manual_review decision
- Malformed call plan JSON causes 400 validation error
- Payment not included or incorrect USDC amount causes 402 payment required error
- Insufficient corpus data for the domain may yield conservative deny response
- Rate limits or overload may cause 429 or 503 errors
Input
{
"input": {
"body": {
"domain": "api.example.com",
"pay_to": "0x742d35Cc6634C0532925a3b844Bc9e7595f42bE",
"price_micro": 50000,
"quality_gate": "standard",
"planned_calls": 100,
"session_cap_usd": 10
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"ok": true,
"dataset": {
"bands": [
{
"n": 870,
"risk_band": "minimal"
},
{
"n": 44,
"risk_band": "low"
},
{
"n": 5,
"risk_band": "high"
}
],
"total": 919,
"calls_30d": 136907,
"last_ingest": {
"id": 847,
"ok": 1,
"ts": 1781842669,
"error": "",
"iso_ts": "2026-06-19T04:17:49.000Z",
"source": "coinbase-discovery",
"scanned": 250,
"upserted": 250,
"attempted": 250
},
"dataset_fresh_at": "2026-06-19T04:18:11.000Z",
"revenue_30d_micro": 3826770339
},
"reasons": [],
"decision": "allow_with_limits",
"warnings": [
"payee_or_domain_not_found_in_hosted_corpus",
"no_observed_unique_buyers_30d",
"endpoint_risk_scores_average_medium_or_high",
"planned_call_count_exceeds_recommended_daily_cap"
],
"provenance": {
"dataset": "x402-endpoint-risk-corpus",
"derived_from": "hosted D1 endpoint rows collected by Cloudflare Cron",
"generated_at": "2026-06-19T04:40:34.000Z"
},
"reputation": {
"ok": true,
"policy": "warn",
"target": {
"pay_to": "0x742d35Cc6634C0532925a3b844Bc9e7595f42bE"
},
"coverage": {
"domains": [],
"networks": [],
"calls_30d": 0,
"endpoints": 0,
"payers_30d": 0,
"price_sanity": {
"score": 35,
"reasons": [
"no_positive_price_metadata"
]
},
"manifest_rows": 0,
"revenue_30d_micro": 0,
"avg_endpoint_risk_score": 50
},
"evidence": [],
"warnings": [
"payee_or_domain_not_found_in_hosted_corpus",
"no_observed_unique_buyers_30d",
"endpoint_risk_scores_average_medium_or_high"
],
"provenance": {
"dataset": "x402-endpoint-risk-corpus",
"derived_from": "hosted D1 endpoint rows collected by Cloudflare Cron",
"generated_at": "2026-06-19T04:40:34.000Z"
},
"reputation_score": 34,
"aggregate_spend_guidance": {
"autopay": false,
"max_per_call_usd": 0.05,
"require_allowlist": true,
"suggested_daily_cap_usd": 0.25
}
},
"next_action": "Use autopay only with the returned per-call/session caps, quality gate, and recheck window.",
"buyer_verdict": "autopay_with_caps",
"candidate_plan": {
"price_micro": 50000,
"planned_calls": 100,
"session_cap_usd": 10,
"planned_spend_usd": 5,
"quality_gate_present": true
},
"execution_policy": {
"stop_conditions": [
"payment_requirement_changes",
"output_schema_mismatch",
"paid_but_denied",
"new_high_risk_corpus_evidence"
],
"require_allowlist": true,
"recheck_after_minutes": 60,
"require_quality_validation": true,
"evidence_required_before_unattended_spend": [
"stable payTo",
"exact resource binding",
"positive catalog reputation",
"machine-validated JSON output"
]
},
"require_allowlist": true,
"recommended_limits": {
"max_per_call_usd": 0.05,
"recheck_after_minutes": 60,
"suggested_daily_cap_usd": 0.25,
"max_calls_before_recheck": 5
},
"require_quality_validation": true
}Tags
x402
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