Authorization is required to call the Go1 Contacts API. Obtain an OAuth 2.0 access token with the scope ‘contacts.readonly’ for read operations, and add the token to the Authorization header of each request.
Ensure your Go1 application is securely configured to request and store access tokens. Include the Bearer token in all API requests to prove identity and permissions.
GET /contacts/:contactId GET /contacts/:contactId/tasks GET /contacts/:contactId/tasks/:taskId GET /contacts/:contactId/notes GET /contacts/:contactId/notes/:id GET /contacts/:contactId/appointments GET /contacts/ GET /contacts/business/:businessId contacts.write POST /contacts/ PUT /contacts/:contactId DELETE /contacts/:contactId POST /contacts/:contactId/tasks PUT /contacts/:contactId/tasks/:taskId PUT /contacts/:contactId/tasks/:taskId/completed DELETE /contacts/:contactId/tasks/:taskId POST /contacts/:contactId/tags
When your app needs a full view of a single contact and its related data.
GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes
GET /contacts/:contactId
contactId
When a new lead enters your system and you want to seed initial work.
POST /contacts/ to create; POST /contacts/:contactId/tasks to create initial tasks
POST /contacts/; POST /contacts/:contactId/tasks
name, email, contactId, taskId
When a task is completed or its status changes in your app.
PUT /contacts/:contactId/tasks/:taskId/completed, PUT /contacts/:contactId/tasks/:taskId
PUT /contacts/:contactId/tasks/:taskId/completed
contactId, taskId, completed
Accelerate integrations with minimal coding. Use visual builders or automation tools to connect your Go1 data to thousands of apps.
Automate workflows around contacts, tasks, notes, and appointments without writing server-side code, saving time and reducing errors.
Scale your operations by reusing endpoint logic across multiple apps and use cases.
This glossary defines common terms and processes used when integrating the Go1 Contacts API, helping developers and marketers speak a shared language.
A person in your Go1 contact list. Includes identifiers, basic details, and related data like tasks, notes, and appointments.
A to-do item linked to a contact. Contains status, due date, and associated metadata.
A text record attached to a contact for context or history.
Scheduled meeting or call associated with a contact, with time and participants.
Create reusable templates that fetch contact data and run tasks automatically across apps.
Trigger workflows when a contact’s tasks change status to keep systems in sync.
Enrich contact records with notes from meetings, calls, and supports interactions.
Register your app in Go1, obtain OAuth credentials, and request access to the Contacts API with the ideal scope.
Implement token handling, make test calls to endpoints, and verify permissions (readonly vs write) before going live.
Create automated flows, monitor usage, and handle errors with retries and logging.
The Contacts API exposes endpoints for retrieving and managing contacts, their tasks, notes, appointments, and related business data. Core endpoints include GET /contacts/:contactId and GET /contacts/:contactId/tasks, among others. See the endpoint list for details. Tip: Start with a simple GET to verify connectivity and permissions before building complex workflows.
Authentication uses OAuth 2.0. Obtain an access token with the proper scope (e.g., contacts.readonly for read operations). Include the token in the Authorization header as Bearer
Read operations typically require the contacts.readonly scope. Write operations need additional scopes and a valid token with write permissions. Always follow least-privilege principles and review endpoint permissions in your app’s OAuth configuration. Use tokens with expiry awareness and refresh before expiry to avoid failed requests.
Use test environments or sandbox endpoints when available. Validate responses with sample data, and simulate error codes to ensure your app handles retries and backoff properly. Document all test scenarios to maintain a clear deployment plan.
Yes. The API enforces rate limits to protect resources. If you exceed limits, you will receive 429 responses and should implement exponential backoff and retries. Consult the Go1 developer docs for current quotas and best practices.
Yes. Nested resources like tasks and notes are available under a contact. Use endpoints such as GET /contacts/:contactId/tasks and GET /contacts/:contactId/notes to fetch related data. Ensure proper permissions and consider batching responses where possible to minimize calls.
Yes. Official documentation and developer guides provide examples, SDKs, and best practices. Start there and adapt examples to your app’s data model and security requirements. If you need more examples, consider building a small sample integration to validate your workflow.
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