# Assumer

> Assumer is an AI coding agent for your terminal and desktop. It reads your codebase, plans changes, edits files, runs commands and ships with you.

Assumer is an AI coding agent by 4Born Solutions. It runs in the terminal (CLI) and as a desktop app, and is built on OpenCode (MIT).

Install: `npm i -g @4born-solutions/assumer`, then run `assumer login` and `assumer` inside a project.

## Product

- [Assumer – AI Coding Agent for Terminal & Desktop](https://assumer.in/): Assumer is an AI coding agent for your terminal and desktop. It reads your codebase, plans changes, edits files, runs commands and ships features with you.
- [Assumer Overview – Agentic Coding in Terminal & Desktop](https://assumer.in/product-overview): See how Assumer works: an agentic coding tool that understands your repo, plans multi-file changes, runs tests and commands, and ships code you can review.
- [Assumer Agent – Autonomous AI Coding Agent](https://assumer.in/ai-agent): Meet the Assumer agent: plan mode, build mode and subagents that read your codebase, edit files, run shell commands and fix failing tests until the job is done.
- [AI Builder – Build Features from a Prompt | Assumer](https://assumer.in/ai-build): Describe a feature in plain English and Assumer builds it in your codebase: it plans the change, writes the code across files and runs it so you can review.
- [Live Preview – See AI Code Changes Instantly | Assumer](https://assumer.in/live-preview): Preview every change Assumer makes as it happens. Run your app locally, see diffs in real time and ask the agent for tweaks without leaving your workflow.
- [Deploy with Assumer – Ship to Any Cloud in Seconds](https://assumer.in/deploy): Ship what Assumer builds to Vercel, Cloudflare, AWS, Azure or Google Cloud. Commit, open a pull request and deploy from the same AI coding workflow.
- [Assumer Pricing – Free, Pro, Max & Team Plans](https://assumer.in/pricing): Start free, then upgrade for more agent usage. Compare the Assumer Free, Pro, Max, Team and Enterprise plans for the AI coding agent, with clear monthly prices.
- [Download Assumer – CLI & Desktop for Mac, Windows, Linux](https://assumer.in/download): Download Assumer for macOS, Windows and Linux. Install the AI coding agent CLI with one npm command, then sign in and run your first task in under a minute.
- [Assumer CLI – AI Coding Agent in Your Terminal](https://assumer.in/cli): An AI coding agent built for the terminal. The Assumer CLI reads your codebase, runs commands, edits files and reviews diffs, with full permission control.
- [Assumer Desktop – AI Coding Agent App for Mac, Windows, Linux](https://assumer.in/desktop): Run several AI coding agents side by side in the Assumer desktop app. Review diffs visually, manage sessions and approve changes on macOS, Windows and Linux.
- [Integrations – MCP, GitHub, Editors & LSP | Assumer](https://assumer.in/integrations): Connect Assumer to MCP servers, GitHub, ACP editors such as Zed, language servers and formatters, or run it as a headless server with an HTTP API.
- [Models – AI Models Available in Assumer](https://assumer.in/models): Assumer gives your account access to leading AI coding models from one CLI. See how model selection works, how usage is counted and how to switch models.
- [Assumer Enterprise – Secure AI Coding Agent for Teams](https://assumer.in/enterprise): Roll out the Assumer AI coding agent across your engineering team with SSO, admin controls, granular permissions, usage reporting and priority support.

## Docs

- [Assumer Docs – Install, Configure & Use the Agent](https://assumer.in/documentation): Official Assumer documentation: install the CLI, sign in, run your first task, and configure agents, tools, permissions, MCP servers and rules files.
- [Quickstart – Install the Assumer CLI in 60 Seconds](https://assumer.in/quick-start): Install Assumer with npm, sign in with assumer login and run your first agentic coding task in under a minute. Step-by-step quickstart for the CLI.
- [Prompt Guide – Better Prompts for AI Coding Agents](https://assumer.in/prompt-guide): Write prompts that get great results from AI coding agents: give context, name files, set constraints and ask for a plan first. Examples you can copy.
- [Code Examples – Build Projects with Assumer](https://assumer.in/code-guide): Step-by-step code examples that show how Assumer plans, writes, tests and ships real projects, from a REST API to a full-stack app with authentication.
- [AI Builder Overview – Assumer Docs](https://assumer.in/ai-builder-overview): Learn how the Assumer AI builder turns a plain-English request into a plan, multi-file code changes and a running result inside your own repository.
- [AI Builder Features – Assumer Docs](https://assumer.in/ai-builder-feature): Every feature of the Assumer AI builder in one place: planning, multi-file edits, command execution, tests, rules files, MCP tools and session history.
- [Starter Templates – Assumer Docs](https://assumer.in/ai-builder-template): Start new projects from Assumer starter templates for SaaS apps, dashboards, APIs, chatbots and portfolios, then let the agent customise them for you.
- [Live Preview Overview – Assumer Docs](https://assumer.in/live-preview-overview): How live preview works in Assumer: run your dev server, watch changes as the agent edits files, inspect diffs and request fixes in the same session.
- [Multi-Device Preview – Assumer Docs](https://assumer.in/live-preview-device): Check how your app looks on desktop, tablet and mobile while Assumer builds it, and ask the agent to fix responsive layout issues as soon as you spot them.

## Solutions

- [Assumer for Startups – Ship Your MVP Faster with AI](https://assumer.in/startups): Small team, big roadmap? Assumer is the AI coding agent that helps startups build features, fix bugs and ship an MVP faster from the terminal or desktop.
- [Assumer for Agencies – Deliver Client Projects with AI](https://assumer.in/agencies): Agencies use Assumer to scaffold client projects, implement features and handle revisions faster, with an AI coding agent that works inside every repo.
- [Assumer for Developers – AI Coding Agent CLI](https://assumer.in/developer): A terminal-first AI coding agent for developers: install the Assumer CLI, connect MCP tools, write rules in Assumer.md and automate work with commands.

## Resources

- [Customer Stories – Teams Shipping with Assumer](https://assumer.in/customer-stories): Read how product teams, startups and agencies use the Assumer AI coding agent to plan, build and ship software faster, with results from real projects.
- [Customer Story – Shipping Faster with Assumer](https://assumer.in/customer-story-detail): How one product team used the Assumer AI coding agent to rebuild its web app, cut development time and ship new features every week. Read the full story.
- [Templates – Starter Projects for the Assumer Agent](https://assumer.in/templates): Browse starter templates for SaaS, AI chatbots, e-commerce, portfolios and APIs. Clone one and let the Assumer coding agent adapt it to your product.
- [AgentFlow Template – AI Agent Landing Page | Assumer](https://assumer.in/template-detail): AgentFlow is a starter template for AI product landing pages. Clone it, open it with Assumer and ask the agent to adapt the copy, sections and styling.
- [Examples – Prompts & Projects Built with Assumer](https://assumer.in/examples): Real prompts and the projects they produced: dashboards, CRMs, landing pages and APIs built with the Assumer AI coding agent. Copy a prompt and try it.
- [Tutorials – Learn Agentic Coding with Assumer](https://assumer.in/tutorials): Hands-on tutorials for agentic coding with Assumer: set up the CLI, write rules files, connect MCP servers, refactor safely and ship features with AI.
- [Help Center – Assumer Support & Community](https://assumer.in/help-center): Get help with Assumer: install and sign-in issues, billing questions, bug reports and feature requests. Contact support or ask the community.
- [Assumer Changelog – Latest Releases & Updates](https://assumer.in/changelog): Every Assumer release in one place: new CLI and desktop features, agent and tool improvements, MCP integrations, bug fixes and performance updates.
- [Compare AI Coding Agents – Assumer vs Alternatives](https://assumer.in/compare): Side-by-side comparisons of Assumer with Claude Code, Cursor, Codex, OpenCode, Antigravity, Copilot, Cline, Kilo Code, Aider and Windsurf (Devin Desktop).
- [Assumer Blog – Agentic Coding Guides & Comparisons](https://assumer.in/blog): Guides, comparisons and tutorials on agentic coding: choosing an AI coding agent, writing rules files, connecting MCP servers and shipping faster with AI.

## Company

- [About Assumer – The Team Behind the AI Coding Agent](https://assumer.in/about): Assumer is built by 4Born Solutions to make software creation faster for every developer. Learn about our mission, our team and how we build.
- [Contact Assumer – Sales, Support & Partnerships](https://assumer.in/contact): Get in touch with the Assumer team for sales, enterprise pilots, support or partnerships. Send us a message and we usually reply within one business day.
- [Legal – Assumer Privacy Policy & Terms of Service](https://assumer.in/legal): Read the Assumer privacy policy and terms of service: what data we collect, how code and prompts are handled, your rights and the rules for using Assumer.
- [Security & Privacy – Assumer AI Coding Agent](https://assumer.in/security): How Assumer protects your code: local execution, permission prompts for every tool, encrypted transport, data retention controls and responsible disclosure.
- [Careers at Assumer – Build the Future of Coding](https://assumer.in/careers): Join the team building Assumer, the AI coding agent for the terminal and desktop. See open roles in engineering, design and developer relations.
- [Brand Assets – Assumer Logo & Guidelines](https://assumer.in/brand): Download the Assumer logo and wordmark, and read the basic guidelines for using the Assumer name and brand in articles, videos and integrations.

## Docs reference

- [Agents](https://assumer.in/docs/agents): Assumer ships with a build agent that makes changes and a read-only plan agent that analyses first, plus subagents for research and your own custom agents.
- [Tools](https://assumer.in/docs/tools): The built-in tools Assumer uses to read, search, edit and run your code, from bash and patch to grep, todo lists, web fetch and subagents.
- [Permissions](https://assumer.in/docs/permissions): Set every tool and shell command to allow, ask or deny, commit the policy to your repo, and undo any change the agent makes with /undo and /redo.
- [Rules files](https://assumer.in/docs/rules): Give Assumer project instructions with an Assumer.md rules file. AGENTS.md and CLAUDE.md files are read too, so existing setups keep working.
- [MCP servers](https://assumer.in/docs/mcp-servers): Connect Model Context Protocol servers to Assumer, local or remote with OAuth, and control which of their tools the agent is allowed to use.
- [Commands and keybinds](https://assumer.in/docs/commands): Every Assumer CLI subcommand, the slash commands you can use inside the terminal UI, and the keyboard shortcuts for switching agents and models.
- [Configuration](https://assumer.in/docs/configuration): Configure Assumer per project with an assumer.json file: permissions, MCP servers and more. Commit it so your whole team shares the same setup.
- [Spec-driven development](https://assumer.in/docs/spec-driven-development): Use Assumer's spec-driven workflow to go from principles and a written spec to a plan, a task list and an implementation you can verify step by step.
- [Meetings](https://assumer.in/docs/meetings): Turn a meeting transcript into a development plan with assumer meeting, review and approve it, and let the agent start building from the agreed plan.
- [GitHub](https://assumer.in/docs/github): Set up the Assumer GitHub integration, check out pull requests with assumer pr, and use assumer run to apply the agent to repeatable repository tasks.
- [Server and web UI](https://assumer.in/docs/server): Run Assumer as a headless server with an HTTP API, open the browser interface with assumer web, and attach terminal sessions to a running server.
- [Troubleshooting](https://assumer.in/docs/troubleshooting): Fixes for common Assumer problems: sign-in errors, install and upgrade issues, MCP connection failures, language servers and where to report bugs.
- [Models](https://assumer.in/docs/models): How models work in Assumer: they run through your signed-in account, you switch them per session with /models, and you can track tokens and cost with stats.
- [Themes](https://assumer.in/docs/themes): Change how the Assumer terminal UI looks. Pick from built-in themes such as Tokyo Night, Catppuccin, Dracula, Nord and GitHub, or follow your terminal colors.
- [Sessions and context](https://assumer.in/docs/sessions): Work with Assumer sessions: switch and resume them, compact long conversations, undo changes, export or import sessions and keep the context focused.
- [Skills](https://assumer.in/docs/skills): Package reusable instructions as skills: a folder with a SKILL.md file that Assumer loads only when a task needs it, compatible with Claude Code skills.
- [Language servers](https://assumer.in/docs/language-servers): Assumer uses language servers to understand types, symbols and errors in your code, and downloads the right server automatically for each language it finds.
- [Formatters](https://assumer.in/docs/formatters): Assumer runs your project's formatter on every file it edits, with Prettier, Biome, gofmt, Ruff, rustfmt, clang-format and many more, so diffs match your style.
- [Environment variables](https://assumer.in/docs/environment-variables): Environment variables that change how Assumer behaves: config locations, authentication for CI, permissions, updates, sharing, language servers and logging.
- [Windows](https://assumer.in/docs/windows): Install and run Assumer on Windows. Native builds for x64 and ARM, setting up Git Bash for shell commands, and when to use WSL instead.
- [Sharing sessions](https://assumer.in/docs/sharing): Share an Assumer session as a link so teammates can see the conversation and changes, stop sharing at any time, or turn sharing off for a whole project.
- [Editors and IDEs](https://assumer.in/docs/editors): Use Assumer from your editor through the Agent Client Protocol, for example in Zed, or run it in your editor's integrated terminal alongside your code.
- [CI and automation](https://assumer.in/docs/ci): Run Assumer non-interactively in scripts and CI with assumer run, authenticate with a console token, and limit what the agent may do with permissions.

## Comparisons

- [Assumer vs Claude Code](https://assumer.in/compare/claude-code)
- [Assumer vs Cursor](https://assumer.in/compare/cursor)
- [Assumer vs OpenAI Codex](https://assumer.in/compare/codex)
- [Assumer vs OpenCode](https://assumer.in/compare/opencode)
- [Assumer vs Google Antigravity](https://assumer.in/compare/antigravity)
- [Assumer vs GitHub Copilot](https://assumer.in/compare/copilot)
- [Assumer vs Cline](https://assumer.in/compare/cline)
- [Assumer vs Kilo Code](https://assumer.in/compare/kilo-code)
- [Assumer vs Aider](https://assumer.in/compare/aider)
- [Assumer vs Devin Desktop (formerly Windsurf)](https://assumer.in/compare/windsurf)

## Blog

- [How to Write an AGENTS.md Rules File That Works](https://assumer.in/blog/agents-md-rules-file-guide): How to write an AGENTS.md or Assumer.md rules file: what to include, what to leave out, a copy-ready template, monorepo tips and common pitfalls.
- [AI Coding Tools Price in India (INR), October 2026](https://assumer.in/blog/ai-coding-tools-price-india): AI coding tools price in India for October 2026: Claude Code, Cursor, GitHub Copilot, Codex and Assumer in INR and USD, with GST notes and a comparison table.
- [Best Claude Code Alternatives in 2026](https://assumer.in/blog/claude-code-alternatives-2026): A fair, sourced comparison of Claude Code alternatives in 2026: OpenCode, Codex CLI, Cursor, Gemini CLI, Antigravity, Cline, Kilo Code, Aider and Assumer.
- [MCP Servers for Coding Agents: 10 Worth Installing](https://assumer.in/blog/mcp-servers-for-coding-agents): The 10 MCP servers worth installing for coding agents in 2026: GitHub, Context7, Playwright, Chrome DevTools, Sentry, Supabase, Linear, Jira, Figma, Memory.
- [What Is Agentic Coding? Agentic vs Vibe Coding](https://assumer.in/blog/what-is-agentic-coding): Agentic coding explained: how AI agents plan, edit, run and verify code, and how it differs from vibe coding and AI-assisted coding, with examples and a table.