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The LinkXG API is a REST API over JSON. Every endpoint lives under the /api/v1 base path, returns a consistent response envelope, and is authenticated. The full, generated endpoint reference is in the sidebar — this page covers the conventions that apply across all of it.

Base URL

Authentication

Most endpoints require a bearer token. Server-to-server integrations use OAuth 2.0 Client Credentials; first-party browser clients use the /auth/v2 cookie session, including SSO and magic-link sign-in.
See Authentication for the full flows.

Response envelope

Successful responses wrap their payload in a consistent envelope:
Errors follow the matching shape with success: false and a structured error. See Error handling for status codes and error codes, and Rate limits for limit headers and the 429 contract.

Where to start

Authentication

OAuth 2.0, cookie sessions, SSO, and magic-link sign-in

Adoption state

Read a tenant’s maturity, milestones, and next-best-action

Company enrichment

Stream profile-enrichment suggestions over SSE

Rate limits

Limits, usage, and contextual upgrade prompts