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-productions2.s3.amazonaws.com/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: Standard
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: SignIn
    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
      - #1 open-source agent on SWE-bench Lite (60.0%)
      - 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: [email protected]
    X: apievangelist
    url: https://apievangelist.com