Kilo Code is an open-source AI coding agent that runs in VS Code, JetBrains IDEs, the CLI, and the cloud, giving access to 500+ AI models at cost with no markup, built by Kilo Code, Inc.
Who builds it
Kilo Code is built by Kilo Code, Inc., a company headquartered in Amsterdam, and describes itself as "the most popular open source coding agent," reporting more than 3 million users and 40 trillion tokens processed (vendor-reported figures). The core extension is MIT-licensed and published on GitHub, where the main repository has more than 26,000 stars; its CLI component is a fork of OpenCode adapted for the Kilo platform.
Core features
- Multiple agent modes: Code, Architect/Plan, Debug, Ask, and Review modes for different stages of a task.
- Broad platform coverage: VS Code extension, a native JetBrains IDE implementation, a CLI, and cloud-hosted execution.
- Codebase understanding: agents analyze the whole project for context-aware suggestions rather than just the open file.
- Cloud/always-on agents: hosted agents reachable via Slack, Discord, or Telegram for tasks outside the IDE.
- KiloClaw: a separately hosted OpenClaw-based agent for scheduled automations and longer-running workflows.
- Terminal and browser control as part of an agent's autonomous actions, plus self-checking of its own output.
- Model flexibility: bring your own API keys (Anthropic, OpenAI, Google, Azure, AWS Bedrock) or use local models, with no vendor lock-in.
Pricing
Kilo Code separates the tool itself from AI inference cost:
- Extension: free and open source across VS Code, JetBrains, and CLI; you pay for AI inference separately.
- AI inference — Auto Free/BYOK/Local: $0/month if you bring your own provider API keys or run local models.
- AI inference — Kilo Gateway: pay-as-you-go access to 500+ models across 60+ providers at exact provider rates with no markup.
- AI inference — Kilo Pass: prepaid credit subscription starting at $19/month (Starter), earning up to 50% bonus credits, with a further 50% bonus on annual billing.
- Teams: $15/user/month with a 14-day free trial, adding usage analytics, team management, and centralized billing.
- Enterprise: custom pricing with SSO, OIDC, and SCIM support, audit logs, and SLA commitments.
- KiloClaw: a separate hosted product at $55/month, with a 1-day free trial and no credit card required.
Who it's for
Developers and teams who want an open-source, model-agnostic coding agent instead of a closed tool tied to one vendor's models — particularly those who already hold API keys with multiple providers and want a single agent that can switch between them without markup. Teams and Enterprise plans add the governance layer (SSO, audit logs, centralized billing) needed to roll Kilo Code out beyond a single developer.