# Postal API

**Canonical:** https://apis.io/apis/postal-server/postal-server-api/  
**Provider:** Postal — https://apis.io/providers/postal-server/  
**Documentation:** https://docs.postalserver.io/getting-started/prerequisites

Postal API is one of 2 APIs that [Postal](https://apis.io/providers/postal-server/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 1 JSON Schema definition. The published artifact set on APIs.io includes an OpenAPI specification and 1 JSON Schema.

Postal API as documented publicly: 3 operations. Contract generated from the documentation by API Evangelist (2026-10-27); not the provider's own document.

## Operations (3)

| Method | Path | Summary |
|---|---|---|
| GET | `/` | GET / |
| GET | `/api/v1/messages/message` | GET Message |
| GET | `/postalserver/install/opt/postal/install` | GET /postalserver/install/opt/postal/install |

## Machine-readable artifacts (2)

- **OpenAPI** — https://artifacts.apis.io/postal-server/openapi/_ae-authored/postal-server-openapi-generated.yml
- **JSONSchema** — https://artifacts.apis.io/postal-server/json-schema/postal-server-get-api-v1-messages-message-response-schema.json

## Other Postal APIs (1)

- [Postal API](https://apis.io/apis/postal-server/postal-api/)

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