Create or update a contact
One step with lemlist. We can help you get access.
Get something done
Create or update a contact
with lemlist · Customer Data Management
Works with AI assistants
Use lemlist: its Lemlist Contacts API lets you create or update a contact in a single step (POST /contacts). lemlist also has an MCP server, so an AI assistant like Claude or ChatGPT can do it for you. capabilities.work can help you get signed up and connected.
- How do I add a person, or update them if their email already exists?
- Can I link a contact to a company by its domain when saving it?
- Are blank fields ignored when I upsert an existing contact?
Say it to your AI assistant
- Add contact {email} named {firstName} {lastName}.
- Upsert the contact at {linkedinUrl} with job title {jobTitle}.
- Link contact {contactId} to the company at {companyDomain}.
For your developer
POST /contacts in Lemlist Contacts API. Full spec on APIs.io.