# BuiltWith Agent Payment API

**Canonical:** https://apis.io/apis/builtwith/builtwith-agent-payment-api/  
**Provider:** BuiltWith — https://apis.io/providers/builtwith/  
**Base URL:** https://payments.builtwith.com  
**Documentation:** https://api.builtwith.com/agent-payment-api

BuiltWith Agent Payment API is one of 31 APIs that [BuiltWith](https://apis.io/providers/builtwith/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include AI Agents, Payments, Credits, and Autonomous. The published artifact set on APIs.io includes API documentation and an OpenAPI specification.

Autonomous credit management API enabling AI agents to manage and replenish API credits programmatically. Charges an existing account's saved Stripe payment method against a separately scoped Agent Billing Key, with a required Idempotency-Key on every purchase.

## Machine-readable artifacts (3)

- **Documentation** — https://api.builtwith.com/agent-payment-api
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/builtwith/refs/heads/main/openapi/builtwith-agent-stripe-topup-openapi.json
- **Idempotency** — https://raw.githubusercontent.com/api-evangelist/builtwith/refs/heads/main/conventions/builtwith-conventions.yml

## Other BuiltWith APIs (12)

- [BuiltWith Domain API](https://apis.io/apis/builtwith/builtwith-domain-api/)
- [BuiltWith Lists API](https://apis.io/apis/builtwith/builtwith-lists-api/)
- [BuiltWith Trends API](https://apis.io/apis/builtwith/builtwith-trends-api/)
- [BuiltWith Change API](https://apis.io/apis/builtwith/builtwith-change-api/)
- [BuiltWith Relationships API](https://apis.io/apis/builtwith/builtwith-relationships-api/)
- [BuiltWith Free API](https://apis.io/apis/builtwith/builtwith-free-api/)
- [BuiltWith Ask API](https://apis.io/apis/builtwith/builtwith-ask-api/)
- [BuiltWith Live Feed API](https://apis.io/apis/builtwith/builtwith-live-feed-api/)
- [BuiltWith Company to URL API](https://apis.io/apis/builtwith/builtwith-company-to-url-api/)
- [BuiltWith Tags API](https://apis.io/apis/builtwith/builtwith-tags-api/)
- [BuiltWith Recommendations API](https://apis.io/apis/builtwith/builtwith-recommendations-api/)
- [BuiltWith Keywords API](https://apis.io/apis/builtwith/builtwith-keywords-api/)

## Tags

AI Agents, Payments, Credits, Autonomous

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/builtwith/builtwith-agent-payment-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/builtwith/.