# PostalForm Machine API

**Canonical:** https://apis.io/apis/postalform-com/postalform-com-machine-api/  
**Provider:** PostalForm — https://apis.io/providers/postalform-com/  
**Base URL:** https://postalform.com/api/machine  
**Documentation:** https://postalform.com/developers

PostalForm Machine API is one of 11 APIs that [PostalForm](https://apis.io/providers/postalform-com/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Machine. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and a getting-started guide.

The Machine API from PostalForm — 17 operation(s) for machine.

## Operations (17)

| Method | Path | Summary |
|---|---|---|
| GET | `/api/machine/forms` | List workflow forms available to machine order flows |
| GET | `/api/machine/forms/{slug}/schema` | Get a machine-usable workflow form schema |
| POST | `/api/machine/orders/validate` | Validate an x402 machine order and return a quote |
| POST | `/api/machine/orders` | Create or reuse an x402 machine order |
| GET | `/api/machine/orders/{id}` | Get x402 machine order status |
| POST | `/api/machine/flower-letters/validate` | Validate an x402 flower-letter order and return a Florist One quote |
| POST | `/api/machine/flower-letters` | Create or reuse an x402 flower-letter order |
| GET | `/api/machine/flower-letters/{id}` | Get x402 flower-letter order status |
| POST | `/api/machine/mpp/orders/validate` | Validate an MPP machine order and return a quote |
| POST | `/api/machine/mpp/orders` | Create or reuse an MPP machine order |
| GET | `/api/machine/mpp/orders/{id}` | Get MPP machine order status |
| POST | `/api/machine/mpp/flower-letters/validate` | Validate an MPP flower-letter order and return a Florist One quote |
| POST | `/api/machine/mpp/flower-letters` | Create or reuse an MPP flower-letter order |
| GET | `/api/machine/mpp/flower-letters/{id}` | Get MPP flower-letter order status |
| POST | `/api/machine/mpp/shipping-labels/validate` | Validate an MPP shipping-label request and return live rates |
| POST | `/api/machine/mpp/shipping-labels` | Create, pay for, and download an MPP shipping label |
| GET | `/api/machine/mpp/shipping-labels/{id}` | Get MPP shipping-label payment, fulfillment, and download status |

## Machine-readable artifacts (8)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/postalform-com/refs/heads/main/openapi/postalform-com-machine-api-openapi.yml
- **Documentation** — https://postalform.com/developers
- **APIReference** — https://postalform.com/openapi.json
- **Documentation** — https://postalform.com/agents
- **Documentation** — https://projects.postalform.com/docs
- **APIReference** — https://projects.postalform.com/openapi.json
- **GettingStarted** — https://postalform.com/developer-mail-api
- **Webhooks** — https://raw.githubusercontent.com/api-evangelist/postalform-com/refs/heads/main/asyncapi/postalform-com-projects-webhooks.yml

## Other PostalForm APIs (10)

- [PostalForm MCP Server](https://apis.io/apis/postalform-com/postalform-mcp-server/)
- [PostalForm A2A Agent](https://apis.io/apis/postalform-com/postalform-a2a-agent/)
- [PostalForm Api Keys API](https://apis.io/apis/postalform-com/postalform-com-api-keys-api/)
- [PostalForm Credits API](https://apis.io/apis/postalform-com/postalform-com-credits-api/)
- [PostalForm Documents API](https://apis.io/apis/postalform-com/postalform-com-documents-api/)
- [PostalForm Letters API](https://apis.io/apis/postalform-com/postalform-com-letters-api/)
- [PostalForm Postcards API](https://apis.io/apis/postalform-com/postalform-com-postcards-api/)
- [PostalForm Return Receipts API](https://apis.io/apis/postalform-com/postalform-com-return-receipts-api/)
- [PostalForm Webhook Endpoints API](https://apis.io/apis/postalform-com/postalform-com-webhook-endpoints-api/)
- [PostalForm Webhook Events API](https://apis.io/apis/postalform-com/postalform-com-webhook-events-api/)

## Tags

Machine

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