---
title: "Token introspection endpoint"
method: POST
path: "/oauth/2026-03/token/introspect"
tags: ["Advanced"]
---

# Token introspection endpoint

`POST /oauth/2026-03/token/introspect`

Returns validity and metadata for access and refresh tokens.

## Response `200`

successful operation

- union
  - AuthOauthPublicAccessTokenInfoResponse
    - `active` boolean, required
    - `app_id` integer, required
    - `client_id` string, required
    - `expires_in` integer, required
    - `hub_domain` string
    - `hub_id` integer, required
    - `is_private_distribution` boolean, required
    - `scopes` string[], required
    - `signed_access_token` AuthOauthSignedAccessToken, required
      - `appId` integer, required
      - `expiresAt` integer, required
      - `hubId` integer, required
      - `hublet` string, required
      - `installingUserId` integer, required
      - `isPrivateDistribution` boolean, required
      - `isServiceAccount` boolean, required
      - `isUserLevel` boolean, required
      - `newSignature` string, required
      - `scopeToScopeGroupPks` string, required
      - `scopes` string, required
      - `signature` string, required
      - `trialScopeToScopeGroupPks` string, required
      - `trialScopes` string, required
      - `userId` integer, required
    - `token` string, required
    - `token_type` string, required
    - `token_use` 'access_token', required
    - `user` string
    - `user_id` integer, required
  - AuthOauthPublicRefreshTokenInfoResponse
    - `active` boolean, required
    - `app_id` integer, required
    - `client_id` string, required
    - `hub_domain` string
    - `hub_id` integer, required
    - `scopes` string[], required
    - `token` string, required
    - `token_type` string, required
    - `token_use` 'refresh_token', required
    - `user` string
    - `user_id` integer, required

## Other responses

- `default` — An error occurred.

---

[API](https://skmtc.net/hubspot/apis/hubspot-api-specification.md) · [All operations](https://skmtc.net/hubspot/apis/hubspot-api-specification/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/hubspot/hubspot-api-specification/revisions/f9c7181056c5/schema)