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POST

Authorizations

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Authorization
string
header
required

HTTP Basic authentication using client_id:client_secret

Body

application/x-www-form-urlencoded
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grant_type
enum<string>

The OAuth 2.0 grant type to use. Defaults to client_credentials

Available options:
client_credentials,
authorization_code,
refresh_token
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userId
string

The Tight user ID to generate a scoped token for. Omit to generate a partner-level token with access to all companies.

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apiCompanyId
string

Scopes a bookkeeper's token to a single company. Provide the userId of a bookkeeper together with the apiCompanyId of a company they can access to generate a token that acts as that bookkeeper working on behalf of that specific company. Requires userId to be the ID of a bookkeeper.

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code
string

The authorization code received from the authorization endpoint. Required for authorization_code grant type.

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redirect_uri
string

The redirect URI used in the authorization request. Required for authorization_code grant type.

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code_verifier
string

The PKCE code verifier. Required when code_challenge_method=S256 was used in the authorization request.

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refresh_token
string

The refresh token to exchange for a new access token. Required for refresh_token grant type.

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scope
enum<string>

Limits the token's permissions. Use read to create a read-only token, or write to allow write access. Defaults to write if omitted.

Available options:
read,
write

Response

200 - application/json

Access token issued successfully

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access_token
string

The bearer token to include in API requests.

Example:

"eyJhbGciOiJSUzI1NiJ9..."

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token_type
enum<string>
Available options:
Bearer
Example:

"Bearer"

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expires_in
integer

Token lifetime in seconds.

Example:

3600

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refresh_token
string

Refresh token, returned for authorization_code grant types.

Example:

"tGzv3JOkF0XG5Qx2TlKWIA"

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scope
string

Space-separated list of granted scopes, if applicable.