Refact.ai

aid: refact-ai
name: Refact.ai
description: 'Refact.ai is an open-source, local-first AI coding assistant and autonomous software-engineering agent built
  by Small Magellanic Cloud Ai Ltd. ("SmallCloud"). The product combines an IDE-integrated chat experience (Ask / Explore
  / Debug / Review / Plan modes), accurate code completion powered by Qwen2.5-Coder with RAG over the workspace, and the Refact
  Agent — an autonomous mode that plans, executes, and iterates on engineering tasks end-to-end, integrating with Git hosts,
  databases, shells, browsers, and MCP servers. The full agent stack — a Rust HTTP/LSP engine (`refact-lsp`), a React/Vite
  chat GUI, and VS Code + JetBrains plugins — is open source under BSD-3-Clause at github.com/smallcloudai/refact and ranked
  #1 open-source agent on SWE-bench Lite (60.0%) and 93.3% on Aider''s Polyglot benchmark with thinking mode. Refact supports
  a cloud SaaS tier (Free / Pro / Enterprise) — though Refact Cloud is being wound down in favor of BYOK + self-hosting —
  plus enterprise on-premise deployment with LLM fine-tuning, AWS Marketplace listings, and bring-your-own-key access to Anthropic,
  OpenAI, Google, xAI, DeepSeek, Groq, Ollama, LM Studio, vLLM, GitHub Copilot, and any OpenAI-compatible endpoint. Refact
  is positioned as a privacy-preserving, self-hostable alternative to closed cloud coding agents — workspace context, checkpoints,
  knowledge graphs, and trajectories are stored locally; no code is sent to the vendor''s servers in self-hosted mode.'
type: Index
position: Provider
access: 3rd-Party
kind: contract
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- AI
- Artificial Intelligence
- Coding Assistant
- AI Agent
- Autonomous Agents
- Code Completion
- Code Generation
- Developer Tools
- IDE
- VS Code
- JetBrains
- Self-Hosting
- On-Premise
- Open Source
- LSP
- MCP
- Model Context Protocol
- Fine-Tuning
- SWE-Bench
- RAG
url: https://raw.githubusercontent.com/api-evangelist/refact-ai/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.20'
apis:
- aid: refact-ai:refact-engine-api
  name: Refact Agent Engine API
  description: 'Local HTTP/LSP API exposed by the Rust `refact-lsp` engine that runs inside the user''s IDE or as a standalone
    server. Implements the agent runtime: provider/model capabilities, chat command queueing, SSE event streams, code completion,
    tool registry and confirmation rules, AST indexing, RAG/vector search over the workspace, integrations configuration,
    knowledge graph operations, task board management, and workspace checkpoint/rollback. This is the contract the VS Code
    and JetBrains plugins and the GUI call over `http://127.0.0.1:<port>/v1`.'
  humanURL: https://docs.refact.ai
  tags:
  - AI
  - Agent
  - LSP
  - HTTP
  - Local
  properties:
  - url: https://docs.refact.ai
    type: Documentation
  - url: https://github.com/smallcloudai/refact/tree/main/refact-agent/engine
    type: SourceCode
  - url: https://github.com/smallcloudai/refact
    type: GitHubRepository
- aid: refact-ai:refact-mcp-integration
  name: Refact MCP Integration
  description: Refact Agent acts as an MCP (Model Context Protocol) client, attaching local or remote MCP servers (`npx`,
    Python `-m`, `docker run`, or remote SSE) into the agent's tool surface with per-tool confirmation rules. This makes any
    MCP server an extension of the Refact Agent's capability set inside the IDE.
  humanURL: https://docs.refact.ai/features/autonomous-agent/integrations/mcp/
  tags:
  - MCP
  - Model Context Protocol
  - Agent
  - Integrations
  properties:
  - url: https://docs.refact.ai/features/autonomous-agent/integrations/mcp/
    type: Documentation
  - url: https://github.com/modelcontextprotocol
    type: Standards
common:
- type: Website
  url: https://refact.ai
- type: Portal
  url: https://refact.ai
- type: Documentation
  url: https://docs.refact.ai
- type: GettingStarted
  url: https://docs.refact.ai/introduction/quickstart/
- type: Enterprise
  url: https://refact.ai/enterprise/
- type: Pricing
  url: https://refact.ai/pricing
- type: Plans
  url: https://refact.ai/pricing
- type: Blog
  url: https://refact.ai/blog/
- type: Signup
  url: https://refact.smallcloud.ai/
- type: Login
  url: https://refact.smallcloud.ai/
- type: Contact
  url: https://refact.ai/contact/
- type: GitHubOrganization
  url: https://github.com/smallcloudai
- type: SourceCode
  name: Refact (monorepo — engine, GUI, plugins, docs)
  url: https://github.com/smallcloudai/refact
- type: SourceCode
  name: refact-vscode (archived — now in monorepo)
  url: https://github.com/smallcloudai/refact-vscode
- type: SourceCode
  name: refact-intellij (archived — now in monorepo)
  url: https://github.com/smallcloudai/refact-intellij
- type: SourceCode
  name: refact-bench (SWE-Bench benchmarking harness)
  url: https://github.com/smallcloudai/refact-bench
- type: SourceCode
  name: rust-sdk (MCP Rust SDK fork)
  url: https://github.com/smallcloudai/rust-sdk
- type: SourceCode
  name: litellm (proxy fork)
  url: https://github.com/smallcloudai/litellm
- type: License
  name: BSD-3-Clause (Refact open-source components)
  url: https://github.com/smallcloudai/refact/blob/main/LICENSE
- type: IDEExtension
  name: Refact for VS Code
  url: https://marketplace.visualstudio.com/items?itemName=smallcloud.codify
- type: IDEExtension
  name: Refact for JetBrains
  url: https://plugins.jetbrains.com/plugin/20647-refact-ai
- type: AWSMarketplace
  url: https://aws.amazon.com/marketplace/seller-profile?id=seller-zb3svnusgaibm
- type: Discord
  url: https://www.smallcloud.ai/discord
- type: Twitter
  url: https://twitter.com/refact_ai
- type: LinkedIn
  url: https://www.linkedin.com/company/smallcloud
- type: YouTube
  url: https://www.youtube.com/@refactai
- type: Features
  data:
  - Refact Agent — autonomous IDE agent that plans, executes, and iterates
  - Agent modes — Ask, Explore, Debug, Review, Plan, Agent
  - In-IDE chat with context-aware code understanding
  - Real-time code completion powered by Qwen2.5-Coder + RAG over the workspace
  - 25+ programming languages including Python, JavaScript/TypeScript, Java, Go, Rust, PHP, C#, Ruby, Kotlin, Swift
  - Local-first execution — workspace context, checkpoints, knowledge, and trajectories stored locally
  - Open-source agent stack under BSD-3-Clause (Rust engine + React GUI + IDE plugins)
  - VS Code, JetBrains (IntelliJ, PyCharm, WebStorm, GoLand, CLion), Visual Studio, Neovim, Sublime Text plugins
  - MCP (Model Context Protocol) client — attach any local or remote MCP server as agent tools
  - Built-in tool integrations — GitHub, GitLab, Bitbucket, Docker, Chrome, Shell, PostgreSQL, MySQL, PDB
  - Workspace checkpoints and one-click rollback for agent operations
  - Knowledge graph and long-term memory across agent sessions
  - Bring-Your-Own-Key for Anthropic, OpenAI, Google Gemini, xAI Grok, DeepSeek, Groq, OpenRouter, GitHub Copilot
  - Local model providers — Ollama, LM Studio, vLLM, custom OpenAI-compatible endpoints
  - LLM fine-tuning on company codebase (Refact, StarCoder, DeepSeek-Coder, CodeLlama variants)
  - Enterprise on-premise deployment with full code privacy
  - AWS Marketplace listing — EC2 deployment and usage-based pricing
  - Runpod and reverse-proxy deployment recipes
  - Image-to-code, code review, and AI Toolbox features
  - Confirmation rules to block or prompt before sensitive tool/MCP calls
  - null
  - 93.3% on Aider Polyglot benchmark with thinking mode
  - Coin-based usage metering on the cloud tier (replacing per-request limits)
  sources:
  - https://refact.ai
  - https://refact.ai/enterprise/
  - https://refact.ai/pricing
  - https://docs.refact.ai
  - https://docs.refact.ai/supported-models/
  - https://docs.refact.ai/features/autonomous-agent/integrations/mcp/
  - https://github.com/smallcloudai/refact
  - https://refact.ai/blog/
  updated: '2026-05-25'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
  X: apievangelist
  url: https://apievangelist.com