Nixflex - AI Voice Platform for Building AI Phone Agents

You need an API key from the dashboard, a phone number already imported, and Node.js 18+.

npx nixflex login

Paste the full key (nxf_xxx:nxfs_xxx). The CLI verifies it against the API before saving.

See what you have

nixflex agents list
nixflex numbers list

Create an agent

Write the prompt in a file - it is easier to edit and to keep in git.

nixflex agents create --name "Reception" --prompt @reception-prompt.txt --voice Ashley

The response includes the new agent_id.

Tell the agent who is calling

Load what you already know about a customer, so the agent uses it instead of asking. See Caller context.

nixflex callers set +447450307843 +447453573770 --name "Sam Carter" --email sam.carter@example.com

The first number is yours, the second is the customer’s.

Place a call

nixflex calls create --agent agent_15d1a9ee16294087 --to +447453573770 --prompt "Call Sam to confirm his appointment on Tuesday at 11."

Then follow it:

nixflex calls get call_xxx

Everything as JSON

Add --json to any command for scripting:

nixflex calls list --limit 5 --json

Load a customer list

One CSV, one number, up to 1,000 rows per request (the CLI splits larger files for you):

caller_number,name,email,location,reference_id,preference
+447453573770,Sam Carter,sam.carter@example.com,London SW1A 1AA,4827,prefers morning appointments
+447700900002,Priya Shah,priya.shah@example.com,,,prefers afternoon appointments

nixflex callers import +447450307843 ./customers.csv

Next: the full command reference.

​Everything as JSON

​Load a customer list

Everything as JSON

Load a customer list