pipelex
Declarative language for composable Al workflows. Devtool for agents and mere humans.
The Pipelex Claude Code plugin integrates a declarative workflow language for building composable AI methods directly within Claude Code and other AI coding assistants. Methods are defined in .mthds files as typed, reusable procedures that chain together LLM calls, document extraction, and data transformations across 60+ models. Developers can build, run, validate, and publish AI workflows using natural /mthds-* commands while maintaining repeatability through explicit typing and structured outputs. The plugin bridges Pipelex's runtime orchestration with AI pair-programming environments.
Key Features
Use Cases
- 01Batch CV screening against job requirements with structured candidate scoring
- 02Multi-step article summarization pipelines for different audience types
- 03Document extraction and analysis workflows combining OCR and LLM interpretation
- 04Reusable AI procedures shared across CLI scripts, Python apps, and TypeScript services
- 05Controlled AI orchestration where each step is explicit and outputs are typed
- 06Building method libraries that teams can discover via typed signature search
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pipelex — FAQ
What is the Pipelex Claude Code plugin?+
It's a plugin that adds /mthds-* commands to Claude Code for building, running, and managing declarative AI workflows written in .mthds files. Methods are typed, composable procedures that orchestrate LLM calls, extractions, and transformations.
How do I install the Pipelex plugin in Claude Code?+
Paste the bootstrap command into Claude Code to install mthds globally, bootstrap the agent, add the marketplace, and install the plugin. After installation, tell Claude to /reload-plugins to activate the /mthds-* commands.
Which AI coding assistants support the Pipelex plugin?+
The plugin works with Claude Code and Codex (Cursor's AI assistant). Separate installation instructions are provided for each client in the documentation.
Do I need API keys to use Pipelex?+
You can use the free Pipelex Gateway (single API key for all providers), bring your own keys from OpenAI/Anthropic/Google/Mistral, or run entirely local AI with Ollama/vLLM/LM Studio without any API keys.
Is Pipelex free and open source?+
Yes, Pipelex is MIT licensed and available on GitHub and PyPI. The Pipelex Gateway offers free credits for multi-provider access; beyond that you can use your own keys or local models at no cost.
Can I run Pipelex methods outside of Claude Code?+
Yes, methods defined in .mthds files run via the CLI (pipelex run), Python (PipelexRunner), TypeScript/Node (mthds SDK), REST API, MCP tools, and n8n nodes. The same file works across all execution targets.
How do I install pipelex?+
Open the source repository on GitHub and follow its README. pipelex is a plugin — MCP Agents Market links you directly to the official repo.
Is pipelex free?+
pipelex is an open-source project hosted on GitHub. Check the repository for its license and any usage requirements.