CustomJS for your voice agent
Customjs is a code-first automation platform for integrating custom JavaScript logic across your tech stack. It lets you extend applications quickly by writing functions for tasks like emails, PDFs, or CRM updates.
Call 1800 570 693 to talk to the demo agent. Plans start at A$49 a month.




Integration record
- Status
- Available
- Plan
- Every plan, from Starter at A$49 a month
- How it connects
- With an API key. You create a key in CustomJS and paste it on a secure page in Connected apps.
- What it reads
- None of its actions only read.
- What it changes
- 5 actions, such as authenticate CustomJS API Key, convert HTML to PDF and convert HTML to PNG.
- What starts an action
- The agent runs an action during a call or chat when the conversation needs it. It only runs the actions you switch on.
- Custom work
- You choose each action from its list of 5. Anything the list doesn't cover needs a custom API tool on Scale, or a Concierge build.
- Checked
- Action list checked 14 November 2026. We haven't tested each action.
CustomJS actions
Changes 5
- Authenticate CustomJS API Key
- Convert HTML to PDF
- Convert HTML to PNG
- Merge multiple PDFs into one
- Run Puppeteer Script
CustomJS setup
Pasting a CustomJS API key
Create an API key in CustomJS, choose CustomJS in Connected apps and paste the key on the secure page.
Choosing the actions
Choose which of the 5 actions the agent may use. Start with lookups and add the ones that change CustomJS when you're ready.
Testing, then publishing
Watch the agent use the live app in the browser tester, then publish. Voice and text agents share the connection.
More integrations
Get started
Tell us what your callers ring about, and we build and test the agent for you.


