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pre.dev is the coding agent for work that outlasts a single prompt. Before it writes any code, it plans — a full architecture, spec, and roadmap — then builds against that plan autonomously for hours, verifying each task before moving to the next and shipping real pull requests to your GitHub. Sessions persist, fork, and merge, so tomorrow’s work builds on today’s instead of starting over.

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Why plan first

  • Long-horizon work needs a map. An agent that improvises for hours drifts. pre.dev’s spec — stack, milestones, user stories, acceptance criteria — is the contract every sprint builds and verifies against.
  • Memory across sessions. The plan, the codebase, and everything the agent has learned about your project persist. Fork a session to try something, merge back what works.
  • Autonomy you can steer. Run the whole roadmap on autopilot, review one task at a time, or dial effort per sprint — from a fast direct pass to the full research → code → verify pipeline.

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What’s on this site

  • Coding Agent Flagship The full loop — plan, build, verify, ship. Use it from the web workspace or the CLI.
  • Browser Agents — fast, cheap, sandboxed browser automation for humans and AI. One REST call or MCP tool: scrape authed dashboards, fill forms, run multi-step flows, extract structured JSON.
  • Architect API — the planning brain as a standalone REST API and MCP server. Drop fast_spec / deep_spec into Cursor, Claude Code, or your own tooling.
  • CLI — the same agent, workspace, and slash commands in your terminal.

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Find your way around

Coding Agent

Ship entire applications from a prompt. Real PRs, verified acceptance criteria, live preview and hosting, autonomous multi-hour builds.

Quickstart

Sign up, describe an app, hit Build on Autopilot. Minutes to a deployed product.

CLI

The web workspace’s chat, slash commands, effort and model controls — in your terminal, on your machine.

Browser Agents

Browser automation that behaves like an API. Sync, async, or SSE-streamed. Structured data out, not raw HTML.

Architect API

One POST /fast-spec or /deep-spec returns a full structured plan — tech stack, milestones, user stories, granular subtasks. REST + MCP.

Plans & Credits

What credits pay for, what each plan includes, and what happens when you run out mid-build.