# Trajectory Billing API

**Canonical:** https://apis.io/apis/trajectory/trajectory-billing-api/  
**Provider:** Trajectory — https://apis.io/providers/trajectory/  
**Base URL:** https://api.trajectory.ai  
**Documentation:** https://api.trajectory.ai/docs

Trajectory Billing API is one of 28 APIs that [Trajectory](https://apis.io/providers/trajectory/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 6 JSON Schema definitions. Tagged areas include billing. The published artifact set on APIs.io includes an OpenAPI specification and 6 JSON Schemas.

The billing API from Trajectory — 15 operation(s) for billing.

## Operations (16)

| Method | Path | Summary |
|---|---|---|
| POST | `/api/v1/billing/purchases` | Purchase Credits |
| GET | `/api/v1/billing/balance` | Get Billing Balance |
| GET | `/api/v1/billing/payment-method` | Get Billing Payment Method |
| POST | `/api/v1/billing/payment-method/portal` | Open Customer Portal |
| GET | `/api/v1/billing/preferences` | Get Billing Preferences |
| PUT | `/api/v1/billing/preferences` | Update Billing Preferences |
| PUT | `/api/v1/billing/preferences/fixed` | Update Fixed Billing Preferences |
| GET | `/api/v1/billing/usage` | Get Billing Usage |
| GET | `/api/v1/billing/usage/tokens` | Get Billing Token Usage |
| GET | `/api/v1/billing/usage/spend` | Get Billing Spend Series |
| GET | `/api/v1/billing/usage/runs` | Get Billing Run Costs |
| GET | `/api/v1/billing/notifications` | Get Billing Notifications |
| POST | `/api/v1/billing/notifications/{notification_id}/dismiss` | Dismiss Billing Notification |
| GET | `/api/v1/organizations/{organization_id}/billing` | Get Organization Billing |
| POST | `/api/v1/organizations/{organization_id}/billing/credits` | Grant Organization Credits |
| GET | `/api/v1/internal-cost/runs` | Get Internal Run Costs |

## Machine-readable artifacts (7)

- **OpenAPI** — https://artifacts.apis.io/trajectory/openapi/trajectory-billing-api-openapi.yml
- **JSONSchema** — https://artifacts.apis.io/trajectory/json-schema/trajectory-experiment-detail-schema.json
- **JSONSchema** — https://artifacts.apis.io/trajectory/json-schema/trajectory-eval-run-schema.json
- **JSONSchema** — https://artifacts.apis.io/trajectory/json-schema/trajectory-deployment-schema.json
- **JSONSchema** — https://artifacts.apis.io/trajectory/json-schema/trajectory-trajectory-schema.json
- **JSONSchema** — https://artifacts.apis.io/trajectory/json-schema/trajectory-start-eval-request-schema.json
- **JSONSchema** — https://artifacts.apis.io/trajectory/json-schema/trajectory-create-run-request-schema.json

## Other Trajectory APIs (12)

- [Trajectory Agents API](https://apis.io/apis/trajectory/trajectory-agents-api/)
- [Trajectory Aperture API](https://apis.io/apis/trajectory/trajectory-aperture-api/)
- [Trajectory API Keys API](https://apis.io/apis/trajectory/trajectory-api-keys-api/)
- [Trajectory Artifacts API](https://apis.io/apis/trajectory/trajectory-artifacts-api/)
- [Trajectory Auth API](https://apis.io/apis/trajectory/trajectory-auth-api/)
- [Trajectory Benchmark Ingestion API](https://apis.io/apis/trajectory/trajectory-benchmark-ingestion-api/)
- [Trajectory Benchmarks API](https://apis.io/apis/trajectory/trajectory-benchmarks-api/)
- [Trajectory Deployments API](https://apis.io/apis/trajectory/trajectory-deployments-api/)
- [Trajectory Diagnostics API](https://apis.io/apis/trajectory/trajectory-diagnostics-api/)
- [Trajectory Eval API](https://apis.io/apis/trajectory/trajectory-eval-api/)
- [Trajectory Experiments API](https://apis.io/apis/trajectory/trajectory-experiments-api/)
- [Trajectory Inference API](https://apis.io/apis/trajectory/trajectory-inference-api/)

## Tags

billing

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