Connect Attio with a workspace API key created by an admin. Select scopes for the records and operations your workflows need.
Prerequisites
In Sim, you need workspace write access and permission to manage integrations.
You need an Attio workspace admin. Only admins can create and manage access tokens.
Creating the API key
Open Workspace settings in Attio (dropdown beside your workspace name) and go to the Developers tab
Click New access token and give it a name (e.g.
Sim Integration)Select the scopes the key needs. To match everything Sim's Attio blocks can do, grant:
text Record and object tools need
record_permissionplusobject_configuration; list tools needlist_configurationandlist_entry; note, task, comment, and webhook tools need their respective scopes; member lookups needuser_management:read.Copy the key and store it somewhere safe.
Adding the API key to Sim
Open Integrations from your workspace sidebar
Search for "Attio" and open it, then click Add to Sim and choose Add API key
Paste the API key and optionally set a display name and description
Click Add API key. Sim verifies the key by calling Attio's
/v2/selfendpoint — if it fails, you'll see a specific error explaining what went wrong.
Using the credential in workflows
Add an Attio block to your workflow. In the credential dropdown, select the saved Attio API key. Choose the operation and configure its inputs.
The block calls the Attio API (api.attio.com/v2) with the key as a standard Bearer credential, with whatever scopes the admin granted the key.
Verify access and rotate the key
Run the operations your workflow needs. If an operation returns a permission error, an admin can edit the key's scopes in Workspace settings → Developers without rotating it.
The key belongs to the workspace, so it does not depend on the creating admin's membership. No workspace domain is required: the key identifies the workspace on api.attio.com/v2.
Attio tokens do not expire. To rotate one, create a replacement with the required scopes, update the saved credential, verify the workflow, then delete the old token. Deletion revokes its access. See Attio's API-key guide.