# Buildkite Agent API

**Canonical:** https://apis.io/apis/buildkite-com/buildkite-agent-api/  
**Provider:** Buildkite — https://apis.io/providers/buildkite-com/  
**Base URL:** https://agent.buildkite.com/v3  
**Documentation:** https://buildkite.com/docs/apis/agent-api

Buildkite Agent API is one of 23 APIs that [Buildkite](https://apis.io/providers/buildkite-com/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include CI/CD, Agents, and Hybrid CI. The published artifact set on APIs.io includes API documentation.

Backplane consumed by the Buildkite Agent (open source, Go) to register, deregister, accept and finish jobs, upload artifacts, stream job logs, and emit metrics for cluster autoscaling. Authenticated via Agent Tokens issued per cluster. Public surface includes `/metrics` (for autoscaling) and `/stacks` (for self-hosted queue controllers). The `agent-edge.buildkite.com` host adds gRPC methods. Most other endpoints are reserved for internal agent use.

## Machine-readable artifacts (3)

- **Documentation** — https://buildkite.com/docs/apis/agent-api
- **Documentation** — https://buildkite.com/docs/agent/v3
- **SourceCode** — https://github.com/buildkite/agent

## Other Buildkite APIs (12)

- [Buildkite GraphQL API](https://apis.io/apis/buildkite-com/buildkite-graphql-api/)
- [Buildkite Webhooks](https://apis.io/apis/buildkite-com/buildkite-webhooks/)
- [Buildkite MCP Server](https://apis.io/apis/buildkite-com/buildkite-mcp-server/)
- [Buildkite Access Token API](https://apis.io/apis/buildkite-com/buildkite-com-access-token-api/)
- [Buildkite Agent Tokens API](https://apis.io/apis/buildkite-com/buildkite-com-agent-tokens-api/)
- [Buildkite Agents API](https://apis.io/apis/buildkite-com/buildkite-com-agents-api/)
- [Buildkite Annotations API](https://apis.io/apis/buildkite-com/buildkite-com-annotations-api/)
- [Buildkite Artifacts API](https://apis.io/apis/buildkite-com/buildkite-com-artifacts-api/)
- [Buildkite Builds API](https://apis.io/apis/buildkite-com/buildkite-com-builds-api/)
- [Buildkite Clusters API](https://apis.io/apis/buildkite-com/buildkite-com-clusters-api/)
- [Buildkite Emojis API](https://apis.io/apis/buildkite-com/buildkite-com-emojis-api/)
- [Buildkite Jobs API](https://apis.io/apis/buildkite-com/buildkite-com-jobs-api/)

## Tags

CI/CD, Agents, Hybrid CI

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/buildkite-com/buildkite-agent-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/buildkite-com/.