# Vapi Cursor API Evaluation

**Category:** Voice Telephony
**Score:** 73 (C)

This is the agent-readable Devtool Arena evaluation page for Vapi on Cursor API.

## Summary

| Metric | Value |
|--------|-------|
| Status | completed |
| Overall score | 73 |
| Grade | C |
| Eval score | 61 |
| Discovery score | 100 |
| Cost | $1.38 |
| Runtime | 9m 57s |
| Tool calls | 73 |
| Errors | 1 |
| Tokens used | 3810391 |
| Success | Yes |

## Agent-Readiness Checklist

| Signal | Evidence |
|--------|----------|
| Context7 | https://context7.com/vapiai/docs |
| llms.txt | https://docs.vapi.ai/llms.txt |
| MCP server | https://docs.vapi.ai/sdk/mcp-server |
| Typed SDK | https://github.com/VapiAI/server-sdk-typescript |
| OpenAPI | https://vapi.ai/openapi.json |
| Agent skills | https://docs.vapi.ai/agent-skills |
| CLI | https://docs.vapi.ai/cli |

## Evaluation Prompt

````text

# Task
Using https://docs.vapi.ai, complete the following task:

Using the Vapi Python SDK, build me a script that performs a voice telephony workflow:

1. Install the official Vapi Python SDK (pip install)
2. Check the Vapi documentation to determine the easiest programmable voice workflow
3. **Preferred:** Create a ***** outbound voice call to "+12015550123" using a valid sandbox/***** caller ID and print the API response as JSON.
   If the provider requires a public answer URL, callback URL, or hosted instructions, use a simple public example from the official docs.
4. **If outbound voice calls are not practical in ***** mode but telephony messaging is supported:** Send a ***** SMS message to "+12015550123" and print the API response as JSON.
5. Print the response fields that identify the call or message and its status

You MUST use the official Vapi Python SDK — do not make raw HTTP/REST calls. 

## 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 | $1.38 (≥$1.00, too expensive) |
| Time | No | 0 | 0 | 597s (5–10min, very slow) |
| Efficiency | No | 0 | 0 | 73 tool calls (>25, inefficient) |
| Found Docs | Yes | 0 | — | Touched docs at docs.vapi.ai: yes (8 matching tool calls) |
| Zero Errors | No | 0 | — | Tool outputs with errors/tracebacks: 1 |
| Syntax Valid | Yes | 0 | — | Code compiles/parses correctly |
| Created Files | Yes | 0 | — | Generated files: 98 (need ≥1) |
| Full Execution | Yes | 0 | — | Method: full_execution, Exit: 0 |

## Run Artifacts

| Artifact | Value |
|----------|-------|
| Conversation turns | 77 |
| Tool call traces | 73 |
| Generated files | 98 |
| Exit code | 0 |
| Completed at | 2026-10-20T06:49:53.310049+00:00 |

### Generated Files

- /home/daytona/app/*****_out.json
- /home/daytona/app/requirements.txt
- /home/daytona/app/vapi_voice_call.py
- /home/daytona/app/.venv/bin/activate_this.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/idna/cli.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/h11/_abnf.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/h11/_util.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/idna/core.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/h11/_state.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_api.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/idna/codec.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/h11/_events.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_auth.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_main.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_urls.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/idna/compat.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/h11/__init__.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/h11/_headers.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/h11/_readers.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/h11/_version.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/h11/_writers.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_types.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_utils.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_client.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_config.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_models.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/idna/__init__.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/idna/__main__.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/idna/idnadata.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/__init__.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/lowlevel.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/__init__.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_content.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/idna/intranges.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/idna/uts46data.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/functools.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/itertools.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/to_thread.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/h11/_connection.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_decoders.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_urlparse.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/abc/_tasks.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/to_process.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/certifi/__init__.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/certifi/__main__.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_multipart.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_lazyimport.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/from_thread.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/streams/tls.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/__version__.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_exceptions.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/idna/package_data.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/typing_extensions.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_tasks.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/abc/__init__.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/abc/_sockets.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/abc/_streams.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/streams/file.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/streams/text.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/h11/_receivebuffer.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_fileio.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/abc/_*****ing.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_status_codes.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_futures.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_signals.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_sockets.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_streams.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/abc/_eventloop.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/abc/_resources.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/py*****_plugin.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/streams/memory.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/to_interpreter.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_backends/_trio.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_*****ing.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_tempfile.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/streams/stapled.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_eventloop.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_resources.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_typedattr.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/streams/buffered.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_transports/asgi.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_transports/base.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_transports/mock.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_transports/wsgi.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_exceptions.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/abc/_subprocesses.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/annotated_types/__init__.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_backends/_asyncio.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_subprocesses.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_transports/default.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/httpx/_transports/__init__.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/annotated_types/*****_cases.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_contextmanagers.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_synchronization.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_concurrency_utils.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/typing_inspection/introspection.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/typing_inspection/typing_objects.py
- /home/daytona/app/.venv/lib/python3.12/site-packages/anyio/_core/_asyncio_selector_thread.py

## Related Pages

- [Cursor API leaderboard](/cursor/api)
- [Compare Cursor API companies](/cursor/api/compare)
- [Agent Landscape](/discoverability)

Canonical URL: https://devtoolarena.com/cursor/api/vapi