Create a Contact

Use the Create a Contact endpoint to add a new contact to your team's Apollo account.

In Apollo terminology, a contact is a person that your team has explicitly added to your database. A contact will have their data enriched in some way, such as accessing an email address or a phone number.

By default, Apollo does not apply deduplication processes when you create a new contact via the API. If your entry has the same name, email address, or other details as an existing contact, Apollo will create a new contact instead of updating the existing contact. To enable deduplication and prevent duplicate contacts, set the run_dedupe parameter to true.

To update an existing contact, use the Update a Contact endpoint instead.

Body Params
string

The first name of the contact you want to create. Example: Tim

string

The last name of the contact you want to create. Example: Zheng

string

The name of the contact's employer (company). Example: apollo

string

The current job title that the contact holds. Example: senior research analyst

string

The Apollo ID for the account. Example: 63f53afe4ceeca00016bdd2f

string

The email address of the contact. Example: [email protected]

string

The corporate website URL. Example: https://www.apollo.io/

label_names
array of strings

Lists to which the contact belongs.

label_names
string

The Apollo ID for the contact stage. Example: 6095a710bd01d100a506d4ae

string

The personal location for the contact. Example: Atlanta, United States

string

The primary phone number. Example: 555-303-1234

string

The work/office phone number. Example: +44 7911 123456

string

The mobile phone number. Example: 555-303-1234

string

The home phone number. Example: 555-303-1234

string

Alternative phone number. Example: 555-303-1234

typed_custom_fields
object

Add information to custom fields in Apollo.

Your custom fields are unique to your team's Apollo account. This means that the examples in this documentation may not work for your testing purposes.

To utilize this parameter successfully, call the Get a List of All Custom Fields endpoint and identify the id value for the custom field, as well as the appropriate data type. For example, if a custom field accepts picklist entries, you need to pass the accompanying id value for the picklist entry that you want to use as the input value.

Example: When the Get a List of All Custom Fields endpoint returns an id of field:

  • "60c39ed82bd02f01154c470a" (datetime)

then the value passed should be:

{"60c39ed82bd02f01154c470a": "2025-08-07"}

boolean
Defaults to false

Set to true to enable deduplication logic that prevents creating duplicate contacts. When enabled, Apollo will check for existing contacts with matching email addresses, names, or other identifying information and return the existing contact instead of creating a duplicate. The default value is false.

When deduplication is enabled, performance may be slightly impacted due to the additional validation checks, but this ensures data integrity and prevents duplicate entries in your database.

Headers
string
enum
Defaults to application/json

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