# Cactal Billing API

**Canonical:** https://apis.io/apis/cactal-ai/cactal-ai-billing-api/  
**Provider:** Cactal — https://apis.io/providers/cactal-ai/  
**Base URL:** https://api.cactal.ai/v1  
**Documentation:** https://cactal.ai/docs/api-reference/introduction

Cactal Billing API is one of 23 APIs that [Cactal](https://apis.io/providers/cactal-ai/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Billing. The published artifact set on APIs.io includes an OpenAPI specification.

Read billing state and manage plans, site capacity, and prepaid usage balance. Every billing operation requires the organization owner role, which API keys cannot hold — today these operations are performed from the dashboard, return 403 for API-key callers, and are hidden from MCP tool lists.

## Operations (8)

| Method | Path | Summary |
|---|---|---|
| GET | `/billing/state` | Get billing state |
| POST | `/billing/plan/preview` | Preview a plan change |
| POST | `/billing/plan/checkout` | Start a plan change checkout |
| POST | `/billing/ai-credit-tier/preview` | Preview an AI credit tier change |
| POST | `/billing/ai-credit-tier` | Change the AI credit tier |
| POST | `/billing/portal` | Open the billing customer portal |
| POST | `/billing/usage-top-up/preview` | Preview a credit top-up |
| POST | `/billing/usage-top-up/checkout` | Start a credit top-up checkout |

## Machine-readable artifacts (1)

- **OpenAPI** — https://artifacts.apis.io/cactal-ai/openapi/cactal-ai-billing-api-openapi.yml

## Other Cactal APIs (12)

- [Cactal API](https://apis.io/apis/cactal-ai/cactal-api/)
- [Cactal Analytics API](https://apis.io/apis/cactal-ai/cactal-ai-analytics-api/)
- [Cactal API keys API](https://apis.io/apis/cactal-ai/cactal-ai-api-keys-api/)
- [Cactal Assets API](https://apis.io/apis/cactal-ai/cactal-ai-assets-api/)
- [Cactal Audit log API](https://apis.io/apis/cactal-ai/cactal-ai-audit-log-api/)
- [Cactal CMS collections API](https://apis.io/apis/cactal-ai/cactal-ai-cms-collections-api/)
- [Cactal CMS fields API](https://apis.io/apis/cactal-ai/cactal-ai-cms-fields-api/)
- [Cactal CMS items API](https://apis.io/apis/cactal-ai/cactal-ai-cms-items-api/)
- [Cactal Documentation API](https://apis.io/apis/cactal-ai/cactal-ai-documentation-api/)
- [Cactal Domains API](https://apis.io/apis/cactal-ai/cactal-ai-domains-api/)
- [Cactal Feedback API](https://apis.io/apis/cactal-ai/cactal-ai-feedback-api/)
- [Cactal Forms API](https://apis.io/apis/cactal-ai/cactal-ai-forms-api/)

## Tags

Billing

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