# Photon Newsletter API

**Canonical:** https://apis.io/apis/photon/photon-newsletter-api/  
**Provider:** Photon — https://apis.io/providers/photon/  
**Base URL:** https://clinical-api.photon.health/graphql  
**Documentation:** https://docs.photon.health/reference/clinical-api

Photon Newsletter API is one of 5 APIs that [Photon](https://apis.io/providers/photon/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Newsletter. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

First-party endpoint for adding newsletter signups to Ghost Members.

## Machine-readable artifacts (4)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/photon/refs/heads/main/openapi/photon-newsletter-api-openapi.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/photon/refs/heads/main/errors/photon-problem-types.yml
- **APICatalog** — https://raw.githubusercontent.com/api-evangelist/photon/refs/heads/main/well-known/photon-api-catalog.json
- **Documentation** — https://photonhealth.com/llms.txt

## Other Photon APIs (4)

- [Photon Clinical API](https://apis.io/apis/photon/photon-clinical-api/)
- [Photon Patient Benefits API](https://apis.io/apis/photon/photon-patient-benefits-api/)
- [Photon Agent discovery API](https://apis.io/apis/photon/photon-agent-discovery-api/)
- [Photon Onboarding API](https://apis.io/apis/photon/photon-onboarding-api/)

## Tags

Newsletter

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