Ranked · Coding agents
Best Coding agents with an API
15 quality-gated coding agents with an API, compared on structured facts · pricing $1.25–$100 · 100% of known offer an API.
The ranking
15 of the 25 coding agents in this index qualify with an API — every one a Published, quality-gated listing, not a scraped row.
Across the set: 15 of 15 with known API status (100%) expose a public API, paid plans span $1.25–$100, and 10 offer a free or freemium tier.
15 of 15 carry a fact-verification date; the freshest check is 2026-08-24.
API access splits into two different jobs here: a few of these agents expose an API so you can drive them programmatically from your own pipeline or CI (Claude Code, OpenCode, Zot), while others expose one so an agent can be embedded in a product or triggered from existing tooling rather than run interactively (Devin, OpenHands) — check which job you actually have before picking from this list.
How we ranked these
Assembled programmatically from the live index: every entry is a Published, quality-gated listing in Coding agents carrying the "API" tag, ranked by tier then name. The numbers (15 tools, 100% of known with an API, paid plans $1.25–$100) are computed from the structured facts on those listings — this page exists only because the underlying data clears the density gate.
All picks at a glance
All 15 compared on one screen. Pick a row to jump to the full entry.
| # | Agent | Best for | From |
|---|---|---|---|
| 1 | Antigravity CLI | Free | |
| 2 | Augment Code | $100/month | |
| 3 | Claude Code | Terminal-native workflows that compose with CI | Free |
| 4 | Cline | Free | |
| 5 | CodeRabbit | $0 / month | |
| 6 | Devin | Free | |
| 7 | Factory | $20 / month | |
| 8 | Junie | Free | |
| 9 | Kilo Code | Free | |
| 10 | Muse Code | $1.25/M input, $4.25/M output / per token | |
| 11 | OpenAI Codex CLI | Free | |
| 12 | OpenCode | Free | |
| 13 | OpenHands | Free (Free) | |
| 14 | Warp | Free | |
| 15 | Zot | Free |
The ranking
Editor’s pick
#1
Antigravity CLI
Google's terminal-native coding agent that replaced the open-source Gemini CLI in June 2026. Same Antigravity 2.0 agent core, now closed-source and tied to a Google AI subscription.
- #2
Augment Code
AI agent platform that automates code review, ticket-to-PR delivery, security remediation, and incident response for dev teams.
- #3
Claude Code
Anthropic’s terminal-native coding agent with full-repository context. Included from the $17/month Claude Pro plan, or billed per token through the API.
Best forTerminal-native workflows that compose with CI
Claude Code is scriptable from a real command line and composes with CI, not just an interactive chat window — the strongest fit if the job is automation, not clicking through a GUI.
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Cline
The open-source coding agent. Bring your own key. Runs in your editor, terminal, and as an SDK, with optional ClinePass for flat-rate open-model access.
Choose Cline if you need to inspect or modify the agent itself, not just call an API — it's open-source and model-agnostic, and its API surface sits on top of code you can actually read.
- #5
CodeRabbit
An AI code-review and security platform that reviews every pull request across GitHub, GitLab, Bitbucket and Azure DevOps, with a real free tier for unlimited repos.
- #6
Devin
Devin is Cognition's autonomous coding agent: assign a task through Slack, CLI, or the web app, and it plans, edits, tests, and opens a pull request inside its own sandbox.
Choose Devin if the job is handing off a whole ticket and getting a reviewed pull request back through its API, rather than driving an interactive session yourself.
- #7
Factory
Agent-native coding platform that coordinates specialized Droids across the full software development lifecycle, from a $20/mo Pro CLI to sales-gated enterprise deployment.
- #8
Junie
JetBrains' own AI coding agent. Plans before it codes, drives the real IDE debugger, runs across the JetBrains IDE family plus a standalone CLI. Free 30-day Pro trial; Pro from $10/month.
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Kilo Code
Open source AI coding agent for VS Code, JetBrains, CLI, and Cloud with 500+ models and no markup
- #10
Muse Code
Meta's terminal coding agent — pay standard rate and it never trains on your code, or opt into Contributor pricing for a steep discount if you let it.
- #11
OpenAI Codex CLI
OpenAI's open-source (Apache-2.0) terminal coding agent, bundled into ChatGPT plans from Free through Pro — Business seats are grandfathered-only.
- #12
OpenCode
A free, open-source (MIT) AI coding agent for the terminal, desktop and IDE, with 75+ model providers, built-in subscription login, and a tested model marketplace behind it.
- #13
OpenHands
Open source platform for cloud coding agents. Free local OSS, free Individual Cloud tier, self-hosted Enterprise with SSO and RBAC.
Choose OpenHands if you want an open-source, self-hostable agent platform with an embeddable SDK, rather than a single vendor's closed API.
- #14
Warp
An open platform for automating development: an open-source terminal, a standalone coding agent, and cloud-agent factories that orchestrate Claude Code, Codex, Gemini CLI and Warp's own agent across your SDLC.
- #15
Zot
A free, MIT-licensed coding-agent harness in one Go binary. Branch any session from any past message, run 30+ model providers from one catalog, and DM the agent from Telegram.
Side by side
All 15 compared. Scroll the table sideways, the fact column stays pinned →
| Feature | Antigravity CLI | Augment Code | Claude Code | Cline | CodeRabbit | Devin | Factory | Junie | Kilo Code | Muse Code | OpenAI Codex CLI | OpenCode | OpenHands | Warp | Zot |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Description | Google's terminal-native coding agent that replaced the open-source Gemini CLI in June 2026. Same Antigravity 2.0 agent core, now closed-source and tied to a Google AI subscription. | AI agent platform that automates code review, ticket-to-PR delivery, security remediation, and incident response for dev teams. | Anthropic’s terminal-native coding agent with full-repository context. Included from the $17/month Claude Pro plan, or billed per token through the API. | The open-source coding agent. Bring your own key. Runs in your editor, terminal, and as an SDK, with optional ClinePass for flat-rate open-model access. | An AI code-review and security platform that reviews every pull request across GitHub, GitLab, Bitbucket and Azure DevOps, with a real free tier for unlimited repos. | Devin is Cognition's autonomous coding agent: assign a task through Slack, CLI, or the web app, and it plans, edits, tests, and opens a pull request inside its own sandbox. | Agent-native coding platform that coordinates specialized Droids across the full software development lifecycle, from a $20/mo Pro CLI to sales-gated enterprise deployment. | JetBrains' own AI coding agent. Plans before it codes, drives the real IDE debugger, runs across the JetBrains IDE family plus a standalone CLI. Free 30-day Pro trial; Pro from $10/month. | Open source AI coding agent for VS Code, JetBrains, CLI, and Cloud with 500+ models and no markup | Meta's terminal coding agent — pay standard rate and it never trains on your code, or opt into Contributor pricing for a steep discount if you let it. | OpenAI's open-source (Apache-2.0) terminal coding agent, bundled into ChatGPT plans from Free through Pro — Business seats are grandfathered-only. | A free, open-source (MIT) AI coding agent for the terminal, desktop and IDE, with 75+ model providers, built-in subscription login, and a tested model marketplace behind it. | Open source platform for cloud coding agents. Free local OSS, free Individual Cloud tier, self-hosted Enterprise with SSO and RBAC. | An open platform for automating development: an open-source terminal, a standalone coding agent, and cloud-agent factories that orchestrate Claude Code, Codex, Gemini CLI and Warp's own agent across your SDLC. | A free, MIT-licensed coding-agent harness in one Go binary. Branch any session from any past message, run 30+ model providers from one catalog, and DM the agent from Telegram. |
| Pricing | Free | $100/month | Free | Free | $0 / month | Free | $20 / month | Free | Free | $1.25/M input, $4.25/M output / per token | Free | Free | Free (Free) | Free | Free |
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This ranking
- 15 agents ranked
- 15 of 15 with known API status offer an API
- paid plans $1.25-$100
- 10 free or freemium
- verified August 24, 2026
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