If you encounter trouble while using the Float API, here’s some troubleshooting steps you can try to resolve them.
For full API reference, check our developer docs. This resource provides information on authentication, endpoints, request parameters, and response formats.
API error codes
401 Unauthorized error
Confirm you're using a valid API key (found under Team Settings > Integrations - accessible by the Account Owner).
Check that your API key is included in the request headers.
Double-check the base URL:
https://api.float.com/v3
If using IP restrictions:
Ensure the IP address making the request is allowed in your account settings.
404 Not Found error
Check for typos in your endpoint path and confirm you're using a valid route from our API documentation.
Common mistakes include missing
/v3or incorrect resource names or ID's.Missing required parameters
Some endpoints require specific parameters to return results.
For example, when retrieving reports and filtering by project, bothstart_dateandend_dateare required.
Example:GET https://api.float.com/v3/reports?project_id=12345&start_date=2024-01-01&end_date=2024-01-31
Incorrect parameters
Incorrect resource names or IDs. Always make sure that the ID of the data you want to pull in is correct.
Example:GET https://api.float.com/v3/reports?project_id=12345
Always refer to the API documentation for the required query parameters per endpoint.
400 Bad request error when sending body with GET request
Remove the request body from all GET requests. Float’s API expects all parameters to be passed in the query string.
422 Error
Invalid Data Format
Make sure fields are formatted correctly (e.g., date fields are in
YYYY-MM-DDformat).Use proper JSON structure - no trailing commas or malformed brackets.
When sending an array of tasks
Currently, the Float API only supports creating one task per request. Sending an array (e.g.,
[{}, {}]) will result in an error.Send each task in a separate POST request. Do not wrap them in an array.
Testing API call in Postman
Postman is a free, beginner-friendly tool for testing APIs without writing code. It allows you to send test requests and instantly see the response or errors before implementing the API fully.
Here are the steps to test API calls in Postman:
Set up your environment:
Base URL:
https://api.float.com/v3Add Header:
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
Make a request:
Example: Get all tasks for a specific date
GET https://api.float.com/v3/tasks?expand=task_days&start_date=2021-04-14&end_date=2021-04-14
Review the response:
Status code, headers, and body
Check for clues in the
messageorerrorfields for validation issues
General Troubleshooting Checklist
Before reaching out to support, review the following:
API Key: Is it correct and active?
Endpoint: Does the full URL match the format
https://api.float.com/v3/{endpoint}?Method: Are you using the correct HTTP method (GET, POST, PUT, DELETE)?
Headers: Is your API key added correctly in the
Authorizationheader?Payload Format: Are you sending valid JSON when required?
API Changes: We regularly update and enhance our API. Please refer to our changelog to check if any recent changes may impact your current API setup.
If you’ve checked everything and are still stuck, please share the following with our support team:
API endpoint you’re calling
Request method and full URL
Headers and payload (if applicable)
Full error message or response