Get languages for a project version.

12 May 2026
6 Minutes to read
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Get languages for a project version.

Updated on 12 May 2026
6 Minutes to read
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Get

/v3/projects/{project_id}/languages

Returns the list of languages configured for the specified project version. If projectVersionId is omitted, languages for the default version are returned. Returns an empty list when no languages have been configured. Use GET /v3/projects/{projectId}/project-versions to retrieve valid project version identifiers.

Security

OAuth

All V3 endpoints require a Bearer token. Generate tokens in the Document360 portal under Settings > API Tokens. Tokens are project-scoped, require the customerApi scope, and do not expire by default. Tokens can be revoked at any time from the portal. Include the token in every request: Authorization: Bearer <your-token>. Alternatively, use the Authorize button below to sign in via OAuth2 Authorization Code flow with PKCE.

FlowAuthorization Code

Authorization URLhttps://identity.document360.net/connect/authorize

Token URLhttps://identity.document360.net/connect/token

Scopes:

customerApiDocument360 Customer API

Path parameters

project_id

string (uuid) Required

The unique identifier of the project. Retrieve project IDs from GET /v3/projects.

Example9a3b4c5d-6e7f-8a9b-0c1d-2e3f4a5b6c7d

Query parameters

project_version_id

string (uuid)

Optional project version identifier to filter languages.

Example9a3b4c5d-6e7f-8a9b-0c1d-2e3f4a5b6c7d

page

integer (int32)

Page number (1-based). Defaults to 1.

Minimum1

Default1

page_size

integer (int32)

Number of results per page. Defaults to 25. Maximum 100.

Minimum1

Maximum100

Default25

cursor

string

Opaque cursor from a previous response's next_cursor. When provided, page is ignored.

include_total_count

boolean

Set to true to include total_count in the response. Default: false.

Defaultfalse

Responses

200

Languages retrieved successfully.

Languages list

Returns all configured languages for the project.

{
  "data": [
    {
      "code": "en",
      "name": "English",
      "is_default": true
    },
    {
      "code": "es",
      "name": "Spanish",
      "is_default": false
    },
    {
      "code": "fr",
      "name": "French",
      "is_default": false
    }
  ],
  "success": true,
  "request_id": "req_abc123def456",
  "errors": null,
  "warnings": null
}

Expand All

object

Paginated API response containing a list of items.

data

Array of object (LanguageResponse)

List of items for the current page.

object

Represents a language configured for a project, used for multilingual documentation.

code

string | null

ISO language code (e.g., "en", "fr", "de", "ja").

Exampleen

name

string | null

Human-readable display name of the language.

ExampleEnglish

is_default

boolean

Whether this is the default language for the project.

pagination

object

Pagination metadata.

page

integer (int32)

Current page number (1-based). Returns 0 when using cursor-based pagination.

page_size

integer (int32)

Number of items per page.

total_count

integer (int64) | null

Total number of items across all pages. Only populated when include_total_count=true is specified in the request.

has_more

boolean

Whether additional pages are available.

next_cursor

string | null

Opaque cursor to retrieve the next page of results. Pass this value as the cursor query parameter. Null when there are no more pages.

success

boolean

Whether the API request was successful.

request_id

string

Unique identifier for request tracing and correlation.

Min length1

errors

Array of object (ApiError) | null

List of errors if the request failed.

object

Represents an error returned by the API.

code

string

Machine-readable error code (e.g. VALIDATION_ERROR, RESOURCE_NOT_FOUND).

Min length1

message

string

Human-readable error message.

Min length1

field

string | null

The request field that caused the error, if applicable.

details

string | null

Additional context about the error.

warnings

Array of object (ApiWarning) | null

List of non-fatal warnings from the request.

object

Represents a non-fatal warning from the API.

code

string

Machine-readable warning code.

Min length1

message

string

Human-readable warning message.

Min length1

401

Authentication token is missing or invalid.

Headers

WWW-Authenticate

string

Indicates the authentication scheme required. Returns `Bearer` with optional `error` and `error_description` parameters per RFC 6750.

Missing or invalid token

Authentication token is missing or invalid.

{
  "type": "https://developer.document360.com/errors/unauthorized",
  "title": "Unauthorized.",
  "status": 401,
  "detail": "The authentication token is missing or has expired.",
  "instance": null,
  "trace_id": "req_abc123def456",
  "errors": [
    {
      "code": "UNAUTHORIZED",
      "message": "Bearer token is missing or invalid.",
      "field": null,
      "details": null
    }
  ],
  "warnings": null
}

Expand All

object

RFC 7807 Problem Details response for V3 API errors. Content-Type: application/problem+json

type

string

URI reference identifying the error type (links to documentation).

Min length1

title

string

Short human-readable summary of the error type.

Min length1

status

integer (int32)

HTTP status code.

detail

string | null

Human-readable explanation specific to this occurrence.

instance

string | null

URI of the request that generated the error.

trace_id

string | null

Request trace identifier for correlation.

errors

Array of object (ApiError) | null

Structured list of specific errors (extension field).

object

Represents an error returned by the API.

code

string

Machine-readable error code (e.g. VALIDATION_ERROR, RESOURCE_NOT_FOUND).

Min length1

message

string

Human-readable error message.

Min length1

field

string | null

The request field that caused the error, if applicable.

details

string | null

Additional context about the error.

warnings

Array of object (ApiWarning) | null

Non-fatal warnings (extension field).

object

Represents a non-fatal warning from the API.

code

string

Machine-readable warning code.

Min length1

message

string

Human-readable warning message.

Min length1

429

Rate limit exceeded. Retry after the duration specified in the Retry-After header.

Headers

Retry-After

integer

Number of seconds to wait before retrying the request. Use exponential backoff with jitter for optimal retry behavior.

X-RateLimit-Limit

integer

The maximum number of requests allowed in the current time window. Limits are applied per API token per project.

X-RateLimit-Remaining

integer

The number of requests remaining in the current time window. When this reaches 0, subsequent requests will receive a 429 response.

X-RateLimit-Reset

integer

The UTC epoch timestamp (in seconds) when the current rate limit window resets.

Rate limit exceeded

Rate limit exceeded.

{
  "type": "https://developer.document360.com/errors/too-many-requests",
  "title": "Too Many Requests.",
  "status": 429,
  "detail": "Rate limit exceeded. Retry after the duration specified in the Retry-After header.",
  "instance": null,
  "trace_id": "req_abc123def456",
  "errors": [
    {
      "code": "TOO_MANY_REQUESTS",
      "message": "Rate limit exceeded. Retry after the duration specified in the Retry-After header.",
      "field": null,
      "details": null
    }
  ],
  "warnings": null
}

Expand All

object

RFC 7807 Problem Details response for V3 API errors. Content-Type: application/problem+json

type

string

URI reference identifying the error type (links to documentation).

Min length1

title

string

Short human-readable summary of the error type.

Min length1

status

integer (int32)

HTTP status code.

detail

string | null

Human-readable explanation specific to this occurrence.

instance

string | null

URI of the request that generated the error.

trace_id

string | null

Request trace identifier for correlation.

errors

Array of object (ApiError) | null

Structured list of specific errors (extension field).

object

Represents an error returned by the API.

code

string

Machine-readable error code (e.g. VALIDATION_ERROR, RESOURCE_NOT_FOUND).

Min length1

message

string

Human-readable error message.

Min length1

field

string | null

The request field that caused the error, if applicable.

details

string | null

Additional context about the error.

warnings

Array of object (ApiWarning) | null

Non-fatal warnings (extension field).

object

Represents a non-fatal warning from the API.

code

string

Machine-readable warning code.

Min length1

message

string

Human-readable warning message.

Min length1

500

An unexpected server error occurred.

Unexpected server error

Unexpected server error.

{
  "type": "https://developer.document360.com/errors/internal-error",
  "title": "Internal Server Error.",
  "status": 500,
  "detail": "An unexpected error occurred. Please try again or contact support.",
  "instance": null,
  "trace_id": "req_abc123def456",
  "errors": [
    {
      "code": "INTERNAL_SERVER_ERROR",
      "message": "An unexpected error occurred.",
      "field": null,
      "details": null
    }
  ],
  "warnings": null
}

Expand All

object

RFC 7807 Problem Details response for V3 API errors. Content-Type: application/problem+json

type

string

URI reference identifying the error type (links to documentation).

Min length1

title

string

Short human-readable summary of the error type.

Min length1

status

integer (int32)

HTTP status code.

detail

string | null

Human-readable explanation specific to this occurrence.

instance

string | null

URI of the request that generated the error.

trace_id

string | null

Request trace identifier for correlation.

errors

Array of object (ApiError) | null

Structured list of specific errors (extension field).

object

Represents an error returned by the API.

code

string

Machine-readable error code (e.g. VALIDATION_ERROR, RESOURCE_NOT_FOUND).

Min length1

message

string

Human-readable error message.

Min length1

field

string | null

The request field that caused the error, if applicable.

details

string | null

Additional context about the error.

warnings

Array of object (ApiWarning) | null

Non-fatal warnings (extension field).

object

Represents a non-fatal warning from the API.

code

string

Machine-readable warning code.

Min length1

message

string

Human-readable warning message.

Min length1

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