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Agent Buyer Identity Preflight | x402 Purchase Governance (Sumsub Counterparty Compliance Bundle)
x402
Agent Buyer Identity Preflight | x402 Purchase Governance (Sumsub Counterparty Compliance Bundle) is a paid API for AI agents from base-agent-preflight.bytoken2023.workers.dev, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).
Runs a counterparty compliance check on an AI agent buyer before it purchases an x402-gated API, dataset, or tool, returning a risk score and flags via Sumsub identity verification.
Price / call$0.15
Success—
StatusUnknown
How this service works
Machine-payable service intelligence for discovering, verifying, and monitoring identity, risk, authorization, execution-preflight, and evidence APIs before autonomous agents spend.
Output
Returns a JSON object containing the network (e.g. eip155:8453), product identifier (sumsub-counterparty-compliance-bundle), and an assessment block with risk_level (e.g. 'low'), numeric risk_score, and an array of flags. May also include identity, activity, and provenance sub-objects for detailed compliance context.
Example use cases
Pre-purchase compliance gate for agent fleet
“My agent fleet is about to purchase several x402 APIs — can you run a counterparty compliance check on applicant ID 'fleet-agent-A1' in jurisdiction DE before any payment goes through, so I know the risk level and whether there are any flags?”
Regulated data marketplace buyer screening
“We're selling a sensitive financial dataset on an x402 marketplace — before approving buyer applicant 'buyer-fin-99X' in jurisdiction GB, run a Sumsub compliance bundle check and tell me their risk score.”
Jurisdiction-specific approval policy check
“My AI agent with applicant ID 'agent-compliance-42' wants to buy a tool gated by x402, but I need to verify it passes the counterparty compliance check for jurisdiction SG and case ID 'case-SG-2024-001' before I authorize the payment.”
Technical details
Endpoint
GEThttps://base-agent-preflight.bytoken2023.workers.dev/v1/x402/sumsub/counterparty-compliance-bundleWhen to prefer
Choose this endpoint when an AI agent or autonomous buyer needs a compliance pre-authorization step before executing an x402 micropayment purchase, particularly when the product is sensitive, jurisdiction-restricted, or subject to approval policies. It is the right choice when Sumsub is your identity/KYC provider and you need a bundled risk score plus flags rather than a raw identity lookup. Prefer it over generic KYC endpoints when operating within the x402 payment ecosystem on Base (EVM chain 8453).
Side effects
- Missing required applicant_id returns a 400 or validation error
- Invalid applicant_id format (non-alphanumeric or too long) rejected by schema pattern
- Unknown jurisdiction code returns an error or unrecognized result
- Sumsub backend unavailable causes a 502/503 upstream error
- Insufficient USDC balance or x402 payment failure blocks the call entirely
- Rate limiting or repeated identical calls may return cached or throttled responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"network": "eip155:8453",
"product": "sumsub-counterparty-compliance-bundle",
"assessment": {
"flags": [],
"risk_level": "low",
"risk_score": 0
}
}
}Tags
x402
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