Automated testing for conversational AI

Simulate real customers and catch multi-turn failures, hallucinations, and bad tool calls before your customers do.

The Voxli dashboard with scenario pass rates and recent test runs
“Voxli becomes more valuable the longer you’ve used it. The tests you build become a custom dataset your competitors don’t have.”
Ammar Khan

Ammar Khan

Builder, Expertise.ai

Expertise.ai Read the case study
Simulate

Simulate multi-turn conversations at scale

Run hundreds of tests in parallel. Create impatient, confused, and combative personas to uncover failures a happy-path demo never reveals.

  • Catch hallucinations and bad tool calls

    Every run flags hallucinated answers, broken tool calls, and wrong parameters, with the evidence next to the conversation.

  • One test, many personalities

    Run the same scenario with different user personas to catch edge cases automatically.

Write tests in plain English

Describe what to test in plain language, or generate tests with Claude, ChatGPT, and more.

  • Replay production conversations

    Turn a real conversation into a repeatable test and keep it as your regression suite.

  • Connect any agent

    Chat, voice, or any framework. Connect in under an hour and run tests in CI or locally.

“The ability to replay real production conversations and turn them into repeatable tests solves a big and important problem for us.”
Leader, AI Engineering · Product support platform
For developers

Your coding agent fixes what Voxli finds

Connect Claude Code, Cursor, or any MCP client to your Voxli workspace. Your assistant reads the failing run, applies a fix, and runs the tests again.

  • Browse your scenarios and agents
  • Trigger test runs from your editor
  • Read detailed results, turn by turn

# Connect your workspace

$ claude mcp add voxli --transport http https://api.voxli.io/mcp

# Then ask your assistant

> Look up the latest run in Voxli and analyze why it failed.

“We had our development team spend three months building internal tools to handle what Voxli does out-of-the-box.”
Senior Exec, Professional Services · Leading CX agent provider

Know what to fix before you deploy

Compare agent versions side by side after a model swap, prompt change, or tool update. Every test scores against your baseline.

Voxli comparing two agent versions side by side, with score deltas per scenario

Side-by-side comparison

Run two or more agents on the same suite and see exactly which tests moved.

Repeat runs, real signal

Run each test several times and read aggregated scores instead of a single lucky pass.

See Voxli in action

A short product walkthrough recorded by one of the founders.

When AI speaks for your business, what it says matters.

We are early stage and founder led. Book a call and talk directly with the people building Voxli.