# LMNT Muse API Evaluation

**Category:** Voice TTS
**Score:** 58 (C)

This is the agent-readable Devtool Arena evaluation page for LMNT on Muse API.

## Summary

| Metric | Value |
|--------|-------|
| Status | completed |
| Overall score | 58 |
| Grade | C |
| Eval score | 65 |
| Discovery score | 43 |
| Cost | $0.59 |
| Runtime | 4m 19s |
| Tool calls | 31 |
| Errors | 7 |
| Tokens used | 2394741 |
| Success | Yes |

## Agent-Readiness Checklist

| Signal | Evidence |
|--------|----------|
| Context7 | https://context7.com/websites/lmnt |
| llms.txt | Not found |
| MCP server | Not found |
| Typed SDK | https://pypi.org/project/lmnt/ |
| OpenAPI | Not found |
| Agent skills | https://docs.lmnt.com/build-with-lmnt/agentic-coding-tools |
| CLI | Not found |

## Evaluation Prompt

````text

# Task
Using https://docs.lmnt.com, complete the following task:

Using LMNT, build me a Python script that converts text to speech:

1. Follow the LMNT documentation to authenticate and choose the simplest text-to-speech API path
2. Convert this text to speech:
   "Your order has been shipped and will arrive by Friday."
3. Save the audio as output.mp3. If only WAV output is supported, save it as output.wav instead
4. Print a confirmation message with the filename when the file is saved

Use documented LMNT APIs only; do not generate fake or placeholder audio. 

## Execution
After creating the script, run it to verify it works:
```bash
cd /home/daytona/app && python <your_script>.py
```

The script should print output to stdout. If there are errors, debug and fix them until it runs successfully.

````

## Grader Results

| Check | Passed | Weight | Score | Details |
|-------|--------|--------|-------|---------|
| Cost | No | 0 | 0 | $0.59 ($0.40–0.70, expensive) |
| Time | No | 0 | 0 | 259s (3–5min, slow) |
| Efficiency | No | 0 | 0 | 31 tool calls (>25, inefficient) |
| Found Docs | Yes | 0 | — | Touched docs at docs.lmnt.com: yes (12 matching tool calls) |
| Zero Errors | No | 0 | — | Tool outputs with errors/tracebacks: 7 |
| Syntax Valid | Yes | 0 | — | Code compiles/parses correctly |
| Created Files | Yes | 0 | — | Generated files: 2 (need ≥1) |
| Full Execution | Yes | 0 | — | Method: full_execution, Exit: 0 |

## Run Artifacts

| Artifact | Value |
|----------|-------|
| Conversation turns | 32 |
| Tool call traces | 31 |
| Generated files | 2 |
| Exit code | 0 |
| Completed at | 2026-10-15T15:03:38.600621+00:00 |

### Generated Files

- /home/daytona/app/tts.py
- /home/daytona/app/requirements.txt

## Related Pages

- [Muse API leaderboard](/leaderboard/muse/api)
- [Compare Muse API companies](/leaderboard/muse/api/compare)
- [Agent Landscape](/leaderboard/discoverability)

Canonical URL: https://devtoolarena.com/muse/api/lmnt