CircleCI API

API

API for automating CI/CD workflows with CircleCI

Overview

The CircleCI API enables programmatic control over continuous integration and delivery pipelines. Key endpoints include triggering pipelines, fetching job statuses, managing workflows, retrieving build artifacts, and accessing test results. Responses are JSON-formatted and follow RESTful principles. Use cases include integrating pipeline status into internal dashboards, automating triggers from external tools, generating custom build reports, and managing project settings programmatically. Authentication requires API tokens, with rate limits varying by plan.

Example Integration (JavaScript)

script.js JS


fetch('https://circleci.com/docs/api/v1-reference/')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful architecture
JSON response format
Pipeline automation
Job status retrieval
Artifact management
API token authentication
Workflow control

Frequently Asked Questions

? Is CircleCI API free to use?

Yes, it’s included in all CircleCI plans (free and paid), though rate limits and advanced endpoint access vary by plan.

? Does it require an API Key?

Yes, authentication uses personal or project-specific API tokens generated from the CircleCI dashboard.

? What is the response format?

All endpoints return responses in JSON format for easy parsing and integration.

Top Alternatives

Tool Info

Pricing Freemium

Category Continuous Integration

Platform Public API

Pros

⊕ Comprehensive endpoint coverage
⊕ Well-documented
⊕ Seamless CircleCI integration
⊕ Supports v1 and v2 versions

Cons

⊖ Plan-dependent rate limits
⊖ Advanced features require paid tiers
⊖ Breaking changes between API versions