# Buildkite

**Canonical:** https://apis.io/providers/buildkite-com/  
**Website:** https://buildkite.com  
**APIs profiled:** 23

Buildkite is a hybrid CI/CD platform that combines a hosted control plane (pipelines.buildkite.com) with self-hosted or Buildkite-Hosted agents that run jobs on customer-controlled infrastructure. The platform spans three core products — Pipelines, Test Engine, and Package Registries — and exposes them through a v2 REST API, a Relay-compliant GraphQL API at graphql.buildkite.com/v1, an Agent API at agent.buildkite.com/v3 consumed by the open-source Go agent, webhooks, and an official MCP server that surfaces those APIs to AI coding agents. Customers route work to specific agent pools through clusters and queues, define pipelines as YAML with dynamic uploads, and integrate with the major source control, cloud, identity, secrets, and observability vendors.

## Kin Score — 66.5 / 100 (exemplar)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 66.5).

| Facet | Score |
|---|---|
| Discoverability | 72.2 |
| Contract Quality | 63.4 |
| Governance | 41.7 |
| Contract Governance | 41.7 |
| Operational Transparency | 47.4 |
| Developer Ergonomics | 69.0 |
| Commercial Clarity | 92.1 |
| Access Clarity | 92.1 |

## Agent readiness — 44.8 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | documented |
| MCP Server | verified |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (23)

- **Buildkite GraphQL API** — GraphQL endpoint that returns deeply nested data on organizations, pipelines, builds, jobs, agents, clusters, queues, teams, audit events, suites, test executions, and package r...
- **Buildkite Agent API** — 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 auto...
- **Buildkite Webhooks** — Outbound HTTP notifications fired in response to build, job, agent, ping, deployment, and package events across Pipelines, Test Engine, and Package Registries. Verified with the...
- **Buildkite MCP Server** — Official Model Context Protocol server that exposes Buildkite REST API surfaces (pipelines, builds, jobs, agents, artifacts, annotations) as MCP tools and toolsets for AI coding...
- **Buildkite Access Token API** — The Access Token API from Buildkite — 1 operation(s) for access token.
- **Buildkite Agent Tokens API** — The Agent Tokens API from Buildkite — 1 operation(s) for agent tokens.
- **Buildkite Agents API** — The Agents API from Buildkite — 3 operation(s) for agents.
- **Buildkite Annotations API** — The Annotations API from Buildkite — 1 operation(s) for annotations.
- **Buildkite Artifacts API** — The Artifacts API from Buildkite — 1 operation(s) for artifacts.
- **Buildkite Builds API** — The Builds API from Buildkite — 4 operation(s) for builds.
- **Buildkite Clusters API** — The Clusters API from Buildkite — 1 operation(s) for clusters.
- **Buildkite Emojis API** — The Emojis API from Buildkite — 1 operation(s) for emojis.
- **Buildkite Jobs API** — The Jobs API from Buildkite — 2 operation(s) for jobs.
- **Buildkite Meta API** — The Meta API from Buildkite — 1 operation(s) for meta.
- **Buildkite Metrics API** — The Metrics API from Buildkite — 1 operation(s) for metrics.
- **Buildkite Organizations API** — The Organizations API from Buildkite — 2 operation(s) for organizations.
- **Buildkite Pipeline Templates API** — The Pipeline Templates API from Buildkite — 1 operation(s) for pipeline templates.
- **Buildkite Pipelines API** — The Pipelines API from Buildkite — 2 operation(s) for pipelines.
- **Buildkite Queues API** — The Queues API from Buildkite — 1 operation(s) for queues.
- **Buildkite Rules API** — The Rules API from Buildkite — 1 operation(s) for rules.
- **Buildkite Stacks API** — The Stacks API from Buildkite — 1 operation(s) for stacks.
- **Buildkite Teams API** — The Teams API from Buildkite — 1 operation(s) for teams.
- **Buildkite User API** — The User API from Buildkite — 1 operation(s) for user.

## MCP servers (1)

- **Buildkite MCP Server** — Buildkite operates an official Model Context Protocol server that exposes the REST API (organizations, clusters, agents, pipelines, builds, jobs, artifacts, annotations, logs, T...

## Agentic access (1)

- **Buildkite Com Agentic Access** — 32 operations · 9 acting · 2 human-in-the-loop

## Security (3)

- **Buildkite Com Authentication** — http/oauth2 · 3 schemes
- **Buildkite Com Domain Security** — TLSv1.3 · HSTS · DMARC
- **Buildkite Com Trust Center** — SOC 2

## Plans (1)

- **Buildkite Com Plans Pricing**

## Tags

CI/CD, Continuous Integration, Continuous Delivery, DevOps, Pipelines, Hybrid CI, Build Automation, Test Engine, Package Registries, Agents, GraphQL, REST, MCP, Webhook

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/buildkite-com/). Scores are computed from the provider's own public artifacts under a published rubric.