Programmatic Payments API
Signets provides a programmatic payments API for teams building AI-native products. Agents can execute payment flows with strict controls and full transaction evidence.
A programmatic payments API lets software initiate, authorize, and monitor payments with machine-readable controls. For agentic systems, this includes delegated credentials, policy gates, and intent verification.
Get Sandbox AccessWhy Legacy Fails
Most APIs are optimized for human checkout forms, not autonomous payment workflows.
Platform teams need policy checks before authorization, not only post-transaction risk review.
Credential rotation and scoped issuance are difficult with manual card operations.
Engineering teams need API-native reconciliation signals for product logic and finance systems.
How Signets Works
Create intent from workflow context and expected payment details.
Evaluate policy for merchant, amount, velocity, and approval thresholds.
Issue scoped card or route from wallet rail for execution.
Stream webhook events for status, evidence, and reconciliation.
Code Example
await signets.intents.create({
agentId: "billing-agent",
purpose: "Purchase API usage package",
expectedMerchant: "vendor-api.com",
expectedAmount: 9500
});
await signets.cards.create({
agentId: "billing-agent",
type: "single_use",
limits: { perAuth: 9500, perDay: 20000, perMonth: 200000 }
});Comparison
| Requirement | Generic API | Signets Programmatic Payments API |
|---|---|---|
| Intent-native flow | Custom | Built in |
| Delegated controls | Partial | First-class |
| Merchant + MCC restrictions | Limited | Programmable |
| Evidence for reconciliation | Fragmented | Intent-linked |
Use Cases
FAQ
Is this only for card payments?
No. Signets supports cards plus wallet rails including bank and stablecoin workflows.
Can we integrate this into existing agent stacks?
Yes. Teams integrate Signets into planner and browser automation workflows as the payment control layer.