Connect Customjs to your AI agent

Developer Tools 5 actions available

CustomJS is a code-first automation platform that enables seamless integration of custom JavaScript logic into various systems and technologies, allowing users to extend applications by writing functions for tasks like sending emails, generating PDFs, or updating CRM data fields.

We set up the connection using your own Customjs account, with keys you control, and keep it running. Your agent picks it up and starts doing the work.

What your agent can do in Customjs

Each one is a real action the agent can take on its own, the same things a person clicking around Customjs could do. Read-only by default; write actions are confirmed against your policy.

  • Authenticate CustomJS API Key Authenticate and validate a CustomJS API key. Returns workspace details, request limits, and decoded JWT token information including user email. Use this to verify an API key is valid before making other CustomJS API ca…
  • Convert HTML to PDF Convert HTML content to a PDF document. Use this tool to generate PDF files from raw HTML markup. Supports: - Complete HTML documents or fragments - Inline CSS styling (colors, fonts, tables, borders, backgrounds) - Uni…
  • Convert HTML to PNG Tool to convert HTML string to PNG image. Use when you need a PNG from HTML after preparing your markup.
  • Merge multiple PDFs into one Merge multiple PDF files from URLs into a single PDF document. Use this tool when you need to combine two or more PDF documents into one. The PDFs are merged in the order provided. All input URLs must be publicly access…
  • Run Puppeteer Script Execute a Puppeteer script in a headless browser and capture a screenshot. Use this tool for browser automation tasks such as navigating to URLs, interacting with page elements, extracting data, or capturing visual snap…

How we connect it

  1. 1

    Connect your account

    You create a key in Customjs, a key you create and control, and paste it in once. It lives in a secrets store on your server, not with us.

  2. 2

    Set the guardrails

    Read-only by default. You choose which write actions the agent may take, and anything outside that policy gets confirmed with you first.

  3. 3

    We keep it running

    Health checks on every connection, updates handled for you, and we watch the first week of activity to make sure the work lands.

Customjs questions, answered.

With a key you create and control. You paste it in once, it is stored in a secrets store on your server, permissions are scoped to the minimum the agent needs, and you can revoke it at any time.
The actions Customjs's API allows, the same things a person clicking around the app could do. Connections start read-only by default; write actions are confirmed against the policy you set before the agent takes them.
Connections are priced per tool on top of the base plan. Some are included, some are premium. See pricing for how connection charges work.
Standard tools are ready inside 7 business days of the setup call. We test the connection end to end, walk you through how the agent uses it, and watch the first week of activity.

Ready to put Customjs to work?

Tell us what your team runs on. We set up the connection, secure it, and your agent takes it from there.

All product names, logos, and brands are property of their respective owners; used for identification only. ZeroToClaw is not affiliated with or endorsed by Customjs.