# Best Coding agents with an API

> Source: https://theagentsindex.com/best/coding-agents/api (curated, quality-gated, re-verified)

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.

| # | Name | What it is | Pricing | API |
| --- | --- | --- | --- | --- |
| 1 | [Antigravity CLI](https://theagentsindex.com/antigravity-cli.md) | 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. | freemium | Yes |
| 2 | [Augment Code](https://theagentsindex.com/augment-code.md) | AI agent platform that automates code review, ticket-to-PR delivery, security remediation, and incident response for dev teams. | paid | Yes |
| 3 | [Claude Code](https://theagentsindex.com/claude-code.md) | 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. | freemium | Yes |
| 4 | [Cline](https://theagentsindex.com/cline.md) | 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. | freemium | Yes |
| 5 | [CodeRabbit](https://theagentsindex.com/coderabbit.md) | 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. | paid | Yes |
| 6 | [Devin](https://theagentsindex.com/devin.md) | 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. | freemium | Yes |
| 7 | [Factory](https://theagentsindex.com/factory-ai.md) | 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. | paid | Yes |
| 8 | [Junie](https://theagentsindex.com/junie.md) | 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. | paid | Yes |
| 9 | [Kilo Code](https://theagentsindex.com/kilo-code.md) | Open source AI coding agent for VS Code, JetBrains, CLI, and Cloud with 500+ models and no markup | freemium | Yes |
| 10 | [Muse Code](https://theagentsindex.com/muse-code.md) | 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. | paid | Yes |
| 11 | [OpenAI Codex CLI](https://theagentsindex.com/codex-cli.md) | OpenAI's open-source (Apache-2.0) terminal coding agent, bundled into ChatGPT plans from Free through Pro — Business seats are grandfathered-only. | freemium | Yes |
| 12 | [OpenCode](https://theagentsindex.com/opencode.md) | 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. | freemium | Yes |
| 13 | [OpenHands](https://theagentsindex.com/openhands.md) | Open source platform for cloud coding agents. Free local OSS, free Individual Cloud tier, self-hosted Enterprise with SSO and RBAC. | freemium | Yes |
| 14 | [Warp](https://theagentsindex.com/warp.md) | 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. | freemium | Yes |
| 15 | [Zot](https://theagentsindex.com/zot.md) | 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. | free | Yes |

## Methodology

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.