Google Cloud Build API
Browse all Google APIs✓ Official Vendor SpecDeveloper ToolsCi Cdoauth240 EndpointsREST
For Agents
Trigger, monitor, and manage Google Cloud Build CI/CD pipelines, including build triggers, worker pools, and GitHub webhook integration. Useful for automated build, test, and image-publishing workflows on GCP.
Use for: I need to trigger a Cloud Build pipeline for the main branch of my repo, Cancel a runaway build that has been running for over an hour, List all builds that failed in the last 24 hours for my project, Set up a trigger that fires whenever a pull request is opened in our GitHub repo
Not supported: Does not deploy artifacts to runtime environments, host source repositories, or store built images — use for build, test, and trigger orchestration only.
Google Cloud Build is a managed continuous-integration service that compiles source code, runs tests, and produces container images or other artifacts on Google Cloud. The API exposes builds, build triggers, worker pools, and GitHub webhook integration so agents can launch builds on demand, configure triggers that fire on Git events, and inspect build logs and status. Builds run in isolated VMs with configurable machine size and private worker pools for builds that need access to internal networks.
Install Jentic One Beta
Connect the Cloud Build API to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Cloud Build API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.
Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.
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Step 1: Jentic One Host machine
# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh2
Step 2: Agent machine
# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register # connects your agent to your Jentic One instanceJentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.
Capabilities
What an agent can do with Cloud Build API.
Submit a build directly to Cloud Build with inline build steps and source
Create build triggers that fire on push, pull-request, or tag events from GitHub or Cloud Source Repositories
Cancel a running build or retry a failed build by ID
Provision and manage private worker pools for builds that need VPC access
List historical builds for a project with pagination and filtering
Receive GitHub webhook events at the githubDotComWebhook endpoint to drive build triggers
Run a build trigger on demand with a specified branch or tag substitution
Use Cases
Patterns agents use Cloud Build API for, with concrete tasks.
★ GitHub-Driven Container Build Pipeline
Engineering teams use Cloud Build triggers to build and push container images on every commit to a GitHub repository. The trigger watches a branch pattern, runs a cloudbuild.yaml that builds the Dockerfile, runs tests, and pushes the resulting image to Artifact Registry. Setup takes under an hour for a single repo and triggers can be templated across many services.
Call POST /v1/projects/{projectId}/triggers with a github filter on branch=main and a build configuration that builds and pushes to us-docker.pkg.dev
On-Demand Build for Release Candidates
Release engineers fire builds on demand to produce a release candidate image for a specific tag. The runTrigger operation accepts the trigger ID and a substitutions map (TAG_NAME, COMMIT_SHA), kicks off the build, and returns a long-running operation the caller can poll. Common in release-pipeline orchestration where the build is one step in a larger workflow.
Call POST /v1/projects/{projectId}/triggers/{triggerId}:run with branchName=release/v1.4.0 and TAG_NAME substitution
Build Status Reporting and Failure Triage
On-call engineers and dashboards call the builds list and get endpoints to surface the status of recent builds, identify failures, and cancel runaway jobs. Filters by status (FAILURE, TIMEOUT) and trigger ID make it easy to attribute breakages to specific pipelines.
Call GET /v1/projects/{projectId}/builds?filter=status="FAILURE" and cancel any build older than one hour via /builds/{id}:cancel
AI Agent Release Operator via Jentic
An agent invoked by a release operator searches Jentic for the right Cloud Build operation, fires the release trigger with the correct tag, polls for completion, and reports the resulting image digest. The agent never sees the underlying service account key — Jentic injects a scoped token at execution time.
Search Jentic for 'run google cloud build trigger', execute against /triggers/{triggerId}:run with TAG_NAME substitution, then poll /builds/{id} until status is SUCCESS
Key Endpoints
40 endpoints — google cloud build is a managed continuous-integration service that compiles source code, runs tests, and produces container images or other artifacts on google cloud.
METHOD
PATH
DESCRIPTION
POST
/v1/projects/{projectId}/builds
Submit a new build
GET
/v1/projects/{projectId}/builds
List builds for a project
POST
/v1/projects/{projectId}/builds/{id}:cancel
Cancel a running build
POST
/v1/projects/{projectId}/builds/{id}:retry
Retry a failed build
POST
/v1/projects/{projectId}/triggers
Create a build trigger
POST
/v1/projects/{projectId}/triggers/{triggerId}:run
Run a build trigger on demand
POST
/v1/githubDotComWebhook:receive
Receive a GitHub webhook event
POST
/v1/projects/{projectId}/builds
Submit a new build
GET
/v1/projects/{projectId}/builds
List builds for a project
POST
/v1/projects/{projectId}/builds/{id}:cancel
Cancel a running build
POST
/v1/projects/{projectId}/builds/{id}:retry
Retry a failed build
POST
/v1/projects/{projectId}/triggers
Create a build trigger
POST
/v1/projects/{projectId}/triggers/{triggerId}:run
Run a build trigger on demand
POST
/v1/githubDotComWebhook:receive
Receive a GitHub webhook event
Why Jentic?
Three things that make agents converge on Jentic-routed access.
Credential isolation
Google Cloud OAuth 2.0 credentials and service account keys are stored encrypted in the Jentic vault. Agents receive short-lived access tokens scoped to cloud-platform — raw service account JSON never enters the agent context.
Intent-based discovery
Agents search Jentic by intent (e.g. 'trigger google cloud build' or 'cancel cloud build') and Jentic returns the matching operation with its parameter schema, so the agent can call the right endpoint without reading Discovery docs.
Time to first call
Direct Cloud Build integration: 2-4 days for OAuth, trigger configuration, and long-running operation polling. Through Jentic: under an hour — search, load schema, execute.
Related APIs
Alternatives and complements available in the Jentic catalogue.
Complementary
GitHub REST API
Source-control side of GitHub-driven Cloud Build triggers
Use the GitHub API to read or comment on the commit that fired a build; use Cloud Build to inspect or rerun the build itself
FAQs
Specific to using Cloud Build API through Jentic.
What authentication does the Cloud Build API use?
The Cloud Build API uses OAuth 2.0 with the cloud-platform scope. Tokens are issued for a Google service account or an end user. Through Jentic, the OAuth credential lives in the Jentic vault and the agent receives a short-lived access token only — the underlying service account JSON never enters agent context.
Can I trigger a Cloud Build pipeline from outside Google Cloud?
Yes. Either POST /v1/projects/{projectId}/builds with an inline build spec, or call /triggers/{triggerId}:run on an existing trigger. For GitHub-driven flows, configure the githubDotComWebhook receiver and the trigger fires automatically on each push or pull request.
What are the rate limits for the Cloud Build API?
Cloud Build quotas are published per-method in the Google Cloud console under the Cloud Build quota page; typical defaults are several hundred build creations per minute per project, with separate concurrent-build quotas based on machine type and worker pool size.
How do I cancel a running build through Jentic?
Search Jentic for 'cancel google cloud build' and execute the operation against POST /v1/projects/{projectId}/builds/{id}:cancel with the build ID. The build transitions to CANCELLED and any active step is terminated immediately.
Does Cloud Build support builds in a private VPC?
Yes. Create a private worker pool via the workerPools resource, attach it to a VPC peering, and reference the worker pool in the build's options.pool field. Builds running on the pool can reach internal Artifact Registry repos, private GitHub Enterprise instances, and other VPC-only services.
Is Cloud Build free?
Cloud Build includes a free tier of 120 build minutes per day on the smallest machine type; usage beyond that and any private worker pool runtime is billed per build minute as documented on the Cloud Build pricing page.
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