VoxGrade connects directly to your Retell account. Import agents, run 25+ automated tests, get a grade in 60 seconds.
No SDK. No code changes. Just connect your Retell API key and VoxGrade handles everything.
Paste your Retell API key into VoxGrade. We automatically import your agents, their LLM config, and voice settings.
Pick any agent from the dropdown. Choose a scenario pack or let VoxGrade auto-generate adversarial tests based on your agent's prompt.
Receive a detailed scorecard with letter grade, metric breakdown, and one-click fix suggestions for every failed test.
Every test simulates a real caller scenario against your Retell agent. No manual review needed.
Is the opening natural, warm, and on-brand? Does it set the right context for the call?
Can your agent handle pushback, price concerns, and "not interested" gracefully?
Does the agent remember details from earlier in the conversation without repeating questions?
Catches your agent making up facts, inventing policies, or promising things it shouldn't.
Verifies required disclosures, consent collection, and regulatory language are present.
How does the agent respond when the caller talks over it or cuts it off mid-sentence?
Tests what happens when the caller goes silent. Does the agent recover naturally or freeze?
Validates hand-off to human agents happens at the right moment with proper context.
Confirms the agent captures dates, times, and details correctly when scheduling appointments.
Measures empathy, tone matching, and appropriate responses to frustrated or confused callers.
VoxGrade understands Retell's architecture. Every test is optimized for how Retell agents actually work.
Import all your Retell agents in one click. VoxGrade reads your agent configs, voice settings, and webhook URLs directly from the Retell API. No copy-pasting prompts.
VoxGrade reads your Retell LLM configuration and system prompt to generate targeted test scenarios. Tests are specific to what your agent is supposed to do, not generic.
Tests actual call behavior including interruption handling, latency, silence detection, and turn-taking. Not just text-based checks -- real voice interaction patterns.
Add VoxGrade to your deployment pipeline. Every time you update your Retell agent's prompt or config, automated tests run and block deploys that regress quality.
Enter your email to start a 14-day free trial. Connect your Retell API key and get your first grade in under a minute.
No credit card required. Cancel anytime.