kitio.aiAdded Nov 5, 2026
Semaphore
FreemiumOpen source CI/CD service that coding agents can set up and run
What is Semaphore?
Semaphore is a continuous integration and delivery platform that now targets coding agents: you tell your agent what you want and it configures and maintains the pipelines through Semaphore's MCP server. It runs in the cloud, self-hosted or hybrid, with usage-based pricing per build minute.
Pipelines cover builds, tests, deployments and monorepos, with test reports, metrics and self-hosted agents for teams that want their own machines. The agent workflow sets up CI for a repository, checks changes before you push, suggests fixes before merge and keeps builds fast as the codebase grows.
Cloud billing is per minute by machine type, from Ubuntu ARM and x64 to macOS, and every account gets $15 of free credits a month with 20 concurrent jobs by default. A Community Edition is open source and can be hosted yourself, and paid support and SLA packages are sold separately.
Features
- CI pipelines and deployments
- MCP server for coding agents
- Monorepo support
- Test reports and metrics
- Self-hosted agents
- macOS and Linux machines
Tags
Releases
+ Submit new release- Listed
Semaphore was added to the directory.
Organization
Semaphore
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- Not listed
Semaphore plans
Free credits
Free
- $15 of credits per month
- 20 concurrent jobs
- 20 GB artifact egress
Ubuntu x64
$0.0075 / min (2 vCPU)
- Pay per build minute
- Larger machines cost more
macOS
$0.09 / min
- Pay per build minute
- For iOS and Mac builds
Self-hosted
$0.0025 / min
- Any machine you run
- Flat per-minute rate
Prices in USD, checked Nov 5, 2026. Plans change often, so confirm on the Semaphore site.Official pricing
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Pros and cons
Pros
- Agents can configure CI from plain requests
- Free monthly credits for small projects
- Open source edition for self-hosting
Cons
- macOS minutes cost far more than Linux
- Fast support and SLAs are paid add-ons
- Cache server and registry cost $400/mo each
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Q&A
What is Semaphore?
Semaphore is a continuous integration and delivery platform that now targets coding agents: you tell your agent what you want and it configures and maintains the pipelines through Semaphore's MCP server. It runs in the cloud, self-hosted or hybrid, with usage-based pricing per build minute.
Can I host Semaphore myself?
Yes. Semaphore has an open source Community Edition you can run on your own servers, plus cloud and hybrid options and self-hosted agents billed at a low per-minute rate.
How do coding agents work with Semaphore?
Semaphore exposes an MCP server, so an AI coding agent can set up pipelines, check work before a push and keep CI green based on your instructions.
How much does Semaphore cost?
Semaphore is freemium.
Is there a free version of Semaphore?
Yes. Semaphore has a free plan, and paid plans add more usage and features.
What are the main features of Semaphore?
CI pipelines and deployments, MCP server for coding agents, Monorepo support, Test reports and metrics, Self-hosted agents, macOS and Linux machines.
Who makes Semaphore?
Semaphore is made by Semaphore.
What are the best alternatives to Semaphore?
Popular alternatives include CircleCI, Visual Studio Code, DeepWiki.