Endorse a user profile specific skill

POSThttps://api.postpress.ai/v1/linkedin/profile/endorse

Endorse a specific skill on a LinkedIn user profile. The `skill_endorsement_id` comes from the `skills[]` array of the Retrieve a profile response.

Authorization

X-API-KEYstringrequired

API key from your postpress dashboard. Sent as a request header.

Request body

account_idstringrequired

The id of the LinkedIn account to trigger the request from.

profile_idstringrequired

Provider ID of the user. Starts with `ACo`/`ADo`.

skill_endorsement_idnumberrequired

Skill endorsement id from the `skills[]` array of `GET /users/{identifier}` (Retrieve a profile).

Response 200 OK

objectstringLinkedinProfileEndorserequired

endorsedbooleanrequired

True when the endorsement was applied.

Example request

curl --request POST \
  --url 'https://api.postpress.ai/api/v1/linkedin/profile/endorse' \
  --header 'X-API-KEY: pp_live_...' \
  --header 'accept: application/json' \
  --header 'content-type: application/json' \
  --data '{
    "account_id": "acc_linkedin_01HXYZ4QK3WJ8FN3M6QH7TZ8GR",
    "profile_id": "ACoAAAxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
    "skill_endorsement_id": 1234567890
  }'

Example response

{
  "object": "LinkedinProfileEndorse",
  "endorsed": true
}

Errors

Every error response follows the same envelope:

titlestringrequired

Short error title.

detailstringoptional

Human-readable explanation.

instancestringoptional

Request identifier for support.

typestringrequired

Error type identifier.

statusnumberrequired

HTTP status code.

400 Bad Request8 types

The request body is malformed or a parameter is invalid.

errors/invalid_parameters - One or more parameters are invalid.
errors/malformed_request - The request is malformed.
errors/content_too_large - The request is too large.
errors/invalid_url - A URL field is invalid.
errors/too_many_characters - A string field exceeds the allowed length.
errors/unescaped_characters - A field contains characters that must be encoded.
errors/missing_parameters - A required field (`account_id`, `profile_id`, `skill_endorsement_id`) is missing.
errors/limit_too_high - `limit` exceeds the allowed maximum.

401 Unauthorized13 types

Credentials are missing, expired, or otherwise invalid.

errors/missing_credentials - Some credentials are necessary to perform the request.
errors/multiple_sessions - LinkedIn limits multiple sessions on certain Recruiter accounts. Use the cookie connection method.
errors/wrong_account - The provided credentials do not match the correct account.
errors/invalid_credentials - The provided credentials are invalid.
errors/invalid_proxy_credentials - The provided proxy credentials are invalid.
errors/invalid_checkpoint_solution - The checkpoint resolution did not pass successfully. Retry.
errors/checkpoint_error - The checkpoint does not appear to be resolvable.
errors/expired_credentials - Credentials have expired. Reconnect the account.
errors/expired_link - This link has expired. Generate a new one.
errors/insufficient_privileges - This resource is out of your API-key scopes.
errors/disconnected_account - The account is disconnected from the provider service.
errors/disconnected_feature - The service you're trying to reach is disconnected.
errors/invalid_credentials_but_valid_account_imap - IMAP/SMTP credentials are invalid but the account is otherwise valid.

403 Forbidden9 types

Authenticated but the account is restricted or the action is not allowed.

errors/insufficient_permissions - Valid authentication but insufficient permissions to perform the request.
errors/account_restricted - The account has been restricted by the provider.
errors/account_mismatch - This action cannot be done with your account.
errors/unknown_authentication_context - An additional step seems necessary to complete login.
errors/session_mismatch - Token user id does not match client session id.
errors/feature_not_subscribed - The requested feature has not been subscribed or authenticated properly.
errors/subscription_required - A subscription is required to use this feature.
errors/resource_access_restricted - You don't have access to this resource.
errors/action_required - An additional step is required.

404 Not Found2 types

The targeted account, profile, or skill does not exist.

errors/resource_not_found - The account, profile, or skill endorsement was not found.
errors/invalid_resource_identifier - The provided identifier is not valid for this resource.

422 Unprocessable Entity4 types

The request is well-formed but cannot be fulfilled as-is.

errors/invalid_account - The provided account is not designed for this feature.
errors/unprocessable_entity - The request cannot be processed in its current form.
errors/action_already_performed - This skill is already endorsed by your account.
errors/account_configuration_error - The account configuration prevents this request.

500 Internal Server Error3 types

Something went wrong on our side or with the upstream provider.

errors/unexpected_error - Something went wrong.
errors/provider_error - The provider is experiencing operational problems. Retry later.
errors/authentication_intent_error - The current authentication intent was killed after failure.

503 Service Unavailable5 types

postpress is temporarily unable to handle the request.

errors/no_client_session - No client session is currently running.
errors/no_channel - No channel to client session.
errors/no_handler - Handler missing for that request.
errors/network_down - Network is down on the server side. Retry shortly.
errors/service_unavailable - Service temporarily unavailable. Retry later.

504 Gateway Timeout1 types

The upstream provider did not respond in time.

errors/request_timeout - Request timed out. Retry, and contact support if it persists.

Updated May 2026