Give OpenClaw access to sandboxed JavaScript execution

The microfn skill teaches your AI agent how to create, deploy, and execute serverless JavaScript functions. With this skill, your agent can extend itself with custom tools on the fly.

Need to fetch weather data? Send notifications? Call a private API? Your agent can write a function, deploy it to Microfn, and immediately start using it. It's like giving your AI the ability to build its own toolbox.

Microfn provides OpenClaw with a sandboxed code runner in the cloud. Your agent can write JavaScript code, deploy it to an isolated environment, and execute it safely - without any risk to your local machine.

With Microfn, OpenClaw can:

• Create tools - Write and deploy new functions that become callable tools
• Use tools - Execute those functions with parameters and get results back
• Update tools - Modify existing functions to fix bugs or add features

This turns OpenClaw into a self-extending agent. When it encounters a task that requires a capability it doesn't have, it can create a new tool, use it immediately, and refine it over time.

Tell OpenClaw to install the Microfn skill from GitHub:

OpenClaw will fetch and configure the skill automatically. The skill teaches your agent how to use the Microfn CLI to manage serverless functions.

Create a Personal Access Token to authenticate your agent with Microfn:

1. Visit microfn.dev/users/settings/api
2. Click "Generate New Token"
3. Give it a descriptive name (e.g., "OpenClaw Agent")
4. Copy the generated token

Tell OpenClaw to use your API token for Microfn authentication:

OpenClaw will securely store the token and use it when executing Microfn commands.

Once configured, your agent can:

• Create and deploy serverless JavaScript functions
• Execute functions with custom parameters
• Store and retrieve persistent data using KV storage
• Manage secrets for secure API access
• Build custom tools that extend its own capabilities

Your agent becomes self-extending: it can create new tools as needed during conversations.

• Weather service - Fetch and cache weather data from any API
• Notifications - Send messages to Discord, Slack, or email
• Data processing - Transform, validate, or analyze data
• API integrations - Connect to Stripe, GitHub, Twilio, and more
• Stateful workflows - Remember context between conversations

Learn more about Microfn Skills:

• Microfn Skills Repository
• Microfn CLI Documentation
• Microfn MCP Server - Alternative integration via Model Context Protocol