# Insider One Gateway API (OAuth 2.0)

**Canonical:** https://apis.io/apis/insider/insider-one-gateway-api-oauth-20/  
**Provider:** Insider — https://apis.io/providers/insider/  
**Base URL:** https://gw.useinsider.com  
**Documentation:** https://academy.insiderone.com/docs/whatsapp-transactional-api

Insider One Gateway API (OAuth 2.0) is one of 19 APIs that [Insider](https://apis.io/providers/insider/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include WhatsApp, Authentication, Webhook, and Messaging. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, and rate-limit docs.

The OAuth 2.0 gateway: WhatsApp v2 transactional and conversational send, plus webhook settings registration. gw.useinsider.com is also the OAuth 2.0 authorization server for the whole Insider One platform, serving RFC 8414 and RFC 9728 discovery documents.

## Machine-readable artifacts (11)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/insider/refs/heads/main/openapi/insider-gateway-openapi.yml
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/insider/refs/heads/main/overlays/insider-gateway-overlay.yaml
- **Documentation** — https://academy.insiderone.com/docs/whatsapp-transactional-api
- **APIReference** — https://developers.insiderone.com/
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/insider/refs/heads/main/authentication/insider-authentication.yml
- **RateLimits** — https://raw.githubusercontent.com/api-evangelist/insider/refs/heads/main/rate-limits/insider-rate-limits.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/insider/refs/heads/main/errors/insider-problem-types.yml
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/insider/refs/heads/main/conventions/insider-conventions.yml
- **Postman** — https://raw.githubusercontent.com/api-evangelist/insider/refs/heads/main/postman/insider-one-apis.postman_collection.json
- **OAuthScopes** — https://raw.githubusercontent.com/api-evangelist/insider/refs/heads/main/scopes/insider-scopes.yml
- **Webhooks** — https://raw.githubusercontent.com/api-evangelist/insider/refs/heads/main/asyncapi/insider-whatsapp-webhooks.yml

## Other Insider APIs (12)

- [Insider One Unification API](https://apis.io/apis/insider/insider-one-unification-api/)
- [Insider One Contact API](https://apis.io/apis/insider/insider-one-contact-api/)
- [Insider One Mail API](https://apis.io/apis/insider/insider-one-mail-api/)
- [Insider One SMS API](https://apis.io/apis/insider/insider-one-sms-api/)
- [Insider One WhatsApp API](https://apis.io/apis/insider/insider-one-whatsapp-api/)
- [Insider One Web Push API](https://apis.io/apis/insider/insider-one-web-push-api/)
- [Insider One Mobile App API](https://apis.io/apis/insider/insider-one-mobile-app-api/)
- [Insider One Mobile Settings API](https://apis.io/apis/insider/insider-one-mobile-settings-api/)
- [Insider One Live Activity API](https://apis.io/apis/insider/insider-one-live-activity-api/)
- [Insider One Verify (OTP) API](https://apis.io/apis/insider/insider-one-verify-otp-api/)
- [Insider One Catalog API](https://apis.io/apis/insider/insider-one-catalog-api/)
- [Insider One Recommendation API](https://apis.io/apis/insider/insider-one-recommendation-api/)

## Tags

WhatsApp, Authentication, Webhook, Messaging

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/insider/insider-one-gateway-api-oauth-20/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/insider/.