# LINE Login v2.1

**Canonical:** https://apis.io/apis/line/line-login-api/  
**Provider:** LINE — https://apis.io/providers/line/  
**Base URL:** https://api.line.me  
**Documentation:** https://developers.line.biz/en/docs/line-login/

LINE Login v2.1 is one of 12 APIs that [LINE](https://apis.io/providers/line/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Social Login, OpenID Connect, and Authentication. The published artifact set on APIs.io includes API documentation, an API reference, and a getting-started guide.

End-user authentication and authorization over OAuth 2.0 authorization code grant and OpenID Connect. Authorization runs at access.line.me; token, userinfo, revocation and JWKS endpoints are on api.line.me. ID tokens are ES256-signed JWTs with pairwise subject identifiers, PKCE is supported with S256 only, and JARM response modes (jwt, query.jwt, form_post.jwt) are accepted. Scopes are openid, profile and email. LINE publishes no OpenAPI for this surface — the machine-readable contract is the OIDC discovery document.

## Machine-readable artifacts (6)

- **OpenIDConnect** — https://raw.githubusercontent.com/api-evangelist/line/refs/heads/main/well-known/line-openid-configuration.json
- **OAuthScopes** — https://raw.githubusercontent.com/api-evangelist/line/refs/heads/main/scopes/line-scopes.yml
- **Documentation** — https://developers.line.biz/en/docs/line-login/
- **APIReference** — https://developers.line.biz/en/reference/line-login/
- **GettingStarted** — https://developers.line.biz/en/docs/line-login/integrate-line-login/
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/line/refs/heads/main/apis.yml

## Other LINE APIs (11)

- [LINE Channel Access Token API](https://apis.io/apis/line/line-channel-access-token-api/)
- [LINE Dummy API](https://apis.io/apis/line/line-dummy-api/)
- [LINE Insight API](https://apis.io/apis/line/line-insight-api/)
- [LINE Liff API](https://apis.io/apis/line/line-liff-api/)
- [LINE Line Module API](https://apis.io/apis/line/line-line-module-api/)
- [LINE Line Module Attach API](https://apis.io/apis/line/line-line-module-attach-api/)
- [LINE Manage Audience API](https://apis.io/apis/line/line-manage-audience-api/)
- [LINE Manage Audience Blob API](https://apis.io/apis/line/line-manage-audience-blob-api/)
- [LINE Messaging API](https://apis.io/apis/line/line-messaging-api-api/)
- [LINE Messaging API Blob API](https://apis.io/apis/line/line-messaging-api-blob-api/)
- [LINE Shop API](https://apis.io/apis/line/line-shop-api/)

## Tags

Social Login, OpenID Connect, Authentication

---

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