Bacalhau API

Welcome to the official API documentation for Bacalhau. This guide provides a detailed insight into Bacalhau's RESTful HTTP APIs and demonstrates how to make the most out of them.


Bacalhau operates on an "API-first" approach, providing an interface for users to interact with the system programmatically.

  • Endpoint Prefix: All APIs are versioned and prefixed with /api/v1.

  • Default Port: By default, Bacalhau listens on port 1234.

  • API Nodes:

    • Orchestrator: Handles user requests, schedules, and monitors jobs. Majority of Bacalhau's APIs are dedicated to Orchestrator interactions. These are accessible at /api/v1/orchestrator.

    • Compute Nodes: Acts as worker nodes and executes the jobs. Both Orchestrator and Compute nodes expose some common APIs under /api/v1/agent for querying agent info and health status.


Label Filtering

Bacalhau supports label filtering on certain endpoints, such as /api/v1/orchestrator/jobs and /api/v1/orchestrator/nodes. This mechanism works similarly to constraints, letting you narrow down your search based on certain criteria.


curl --get "" --data-urlencode 'labels=env in (prod,dev)'


To handle large datasets, Bacalhau supports pagination. Users can define the limit in their request and then utilize the next_token from the response to fetch subsequent data chunks.


To sort the results of list-based queries, use the order_by parameter. By default, the list will be sorted in ascending order. If you want to reverse it, use the reverse parameter. Note that the fields available for sorting might vary depending on the specific API endpoint.

Pretty JSON Output

By default, Bacalhau's APIs provide a minimized JSON response. If you want to view the output in a more readable format, append pretty to the query string.

HTTP Methods

Being RESTful in nature, Bacalhau's API endpoints rely on standard HTTP methods to perform various actions:

  • GET: Fetch data.

  • PUT: Update or create data.

  • DELETE: Remove data.

The behavior of an API depends on its HTTP method. For example, /api/v1/orchestrator/jobs:

  • GET: Lists all jobs.

  • PUT: Submits a new job.

  • DELETE: Stops a job.

HTTP Response Codes

Understanding HTTP response codes is crucial. A 2xx series indicates a successful operation, 4xx indicates client-side errors, and 5xx points to server-side issues. Always refer to the message accompanying the code for more information.

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