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Yandex Serverless Integrations
  • Comparing with other Yandex Cloud services
  • Pricing policy
  • Terraform reference
    • API authentication
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In this article:

  • IAM token
  • API key
  1. Workflows API reference
  2. API authentication

Authentication with the Workflows API

Written by
Yandex Cloud
Updated at June 18, 2026
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  • IAM token
  • API key

To work via the API, you can use an IAM token or an API key.

Note

You can use an API key only for methods of the Execution resource.

IAM tokenIAM token

An IAM token is a unique sequence of characters issued to the user following authentication.

How to get an IAM token:

  • Guide for Yandex accounts.
  • Guide for a service account.
  • Guide for a federated account.
  • Guide for a local account.

Specify the received IAM token when accessing Yandex Cloud resources via the API. Provide the IAM token in the Authorization header in the following format:

Authorization: Bearer <IAM_token>

If you have saved your IAM token to a variable, use the latter:

Authorization: Bearer ${IAM_TOKEN}

API keyAPI key

The API key is a secret key only used for simplified authorization of service accounts with the Yandex Cloud API.

Guide to obtaining an API key for service accounts.

Use the API key you obtained when accessing Yandex Cloud resources via the API. Include the API key in the Authorization header, formatted as follows:

Authorization: Api-Key <API_key>

If you have saved the API key to a variable, use the latter:

Authorization: Api-Key ${API_KEY}

See alsoSee also

Accounts in Yandex Cloud

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