Connect a new sequencer account (Instantly, Smartlead, Lemlist, EmailBison, etc.) to your workspace. Pass the platform identifier, the credentials the platform requires (use the field names returned by List sequencer platforms), and any optional warmup or workflow settings. Once added, you can route mailboxes into this sequencer with the Export endpoint.Lemlist note: when platform is lemlist, this endpoint runs Lemlist live login via browser automation (synchronous, typically 30 to 90 seconds). If Lemlist auto-trusts the IP, the Sequencer record is created immediately and the endpoint returns 201 (same as other platforms). If Lemlist gates the login with a magic-link / OTP confirmation page, the endpoint returns 202 with { status: 'verification_required', verification_id, sequencer_email }. The caller must then extract the confirmation URL plus the 6-digit code from Lemlist verification email and follow up with POST /v1/api/sequencers/lemlist/verify (re-send the same email + password).
Request
Authorization
Provide your bearer token in the
Authorization
header when making requests to protected resources.