Basecamp

Read and write Basecamp projects, to-do lists, to-dos, subtasks, cards, comments, schedule entries and timesheets.

Create client work in Basecamp from sales or service events and bring progress and hours back to operations.

Build a flow with Basecamp Provider API documentation

Source actions

Destination actions

Data types

Validation status

Implemented · fixture tested.

Implementation is checked against provider-shaped fixtures for every action, authentication failures, rate limits, pagination and duplicate safety. Provider sandbox and authorised account validation are recorded separately when credential-backed runs are completed.

What you can map

cards

Create card
Destination
Not retried automatically
Creates a card in a card table column.
List cards in a column
Source
Card table (kanban) cards in a column.
Update card
Destination
Duplicate protected
Updates supplied fields of a card; omitted fields are unchanged.

comments

Add comment
Destination
Not retried automatically
Adds a comment to a recording. Subscribers of the recording are notified.
List comments
Source
Comments on any recording (to-do, card, message, document).
Edit comment
Destination
Duplicate protected
Replaces the content of a comment.

messages

List messages
Source
Messages on a project's message board.

people

List people
Source
People visible to the user, for assignee mapping.

projects

Create project
Destination
Not retried automatically
Creates a project.
Get project
Source
A project with its tool IDs (to-do set, schedule, docs and files, card table).
List projects
Source
Projects visible to the user, newest first.
Update project
Destination
Duplicate protected
Updates the project name, description and schedule dates.

recordings

List recent recordings
Source
Recordings of one type across projects, most recently updated first, for change detection.

schedule entries

Create schedule entry
Destination
Not retried automatically
Adds an event or milestone date to a project schedule.
List schedule entries
Source
Upcoming entries on a project schedule.

subtasks

Create subtask
Destination
Not retried automatically
Adds a subtask to a to-do or card.
List subtasks
Source
Subtasks (steps) of a to-do or card.
Update subtask
Destination
Duplicate protected
Updates supplied fields of a subtask; omitted fields are unchanged.

timesheet entries

Log time
Destination
Not retried automatically
Logs hours against a to-do, card, message or the project's timesheet recording.
List project timesheet
Source
Time logged on a project and its to-dos, cards and other recordings.
Update time entry
Destination
Duplicate protected
Updates supplied fields of a timesheet entry.

todo completions

Complete to-do
Destination
Duplicate protected
Marks a to-do as completed.

todolists

Create to-do list
Destination
Not retried automatically
Creates a to-do list in a to-do set.
List to-do lists
Source
To-do lists in a project's to-do set (use Get project to find the to-do set ID).
Replace to-do list
Destination
Duplicate protected
Replaces the name and description of a to-do list. An omitted description is cleared.

todos

Create to-do
Destination
Not retried automatically
Creates a to-do in a to-do list.
Get to-do
Source
A single to-do.
List to-dos
Source
To-dos in a to-do list, with assignees and dates.
Replace to-do
Destination
Duplicate protected
Replaces a to-do. Basecamp clears every field that is not sent, so the content, assignees and subscribers are required and omitted notes or dates are cleared.

uploads

List uploads
Source
File metadata in a Docs & Files vault; file contents are not transferred.

Authentication

OAuth 2 (Launchpad) client ID, client secret and refresh token

Plans and access

All current Basecamp plans; timesheets require the timesheet add-on to be enabled. Access follows the Basecamp user who authorised the OAuth app.

Test environment

Use a Basecamp trial account; there is no separate sandbox host.

Rate limits

Dynamic limits; commonly 50 requests per 10 seconds per IP. HTTP 429 with Retry-After.

Provider events

Basecamp project webhooks for recording events. Nexra event triggers are not yet available; flows run on demand or on a schedule.

Before you build a flow

Updating a to-do or to-do list replaces it: omitted fields are cleared. Nexra always sends every field for these updates.
Posting message-board messages is not implemented because a published message notifies everyone on the project.
Upload metadata is read; file contents are not transferred.
Basecamp has no idempotency key; uncertain creates are not repeated automatically.
Trashing, archiving and deletes are not implemented.