# Vonage Grok API Evaluation

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

This is the agent-readable Devtool Arena evaluation page for Vonage on Grok API.

## Summary

| Metric | Value |
|--------|-------|
| Status | completed |
| Overall score | 73 |
| Grade | C |
| Eval score | 68 |
| Discovery score | 86 |
| Cost | $0.49 |
| Runtime | 5m 28s |
| Tool calls | 29 |
| Errors | 0 |
| Tokens used | 611977 |
| Success | Yes |

## Agent-Readiness Checklist

| Signal | Evidence |
|--------|----------|
| Context7 | https://context7.com/vonage/vonage-node-sdk |
| llms.txt | https://developer.vonage.com/llms.txt |
| MCP server | https://github.com/Vonage/vonage-mcp-server-documentation |
| Typed SDK | https://github.com/Vonage/vonage-node-sdk |
| OpenAPI | https://developer.vonage.com/en/api/sms |
| Agent skills | Not found |
| CLI | https://github.com/Vonage/vonage-cli |

## Evaluation Prompt

````text

# Task
Using https://developer.vonage.com/en/voice/voice-[REDACTED:TENANT]/getting-started, complete the following task:

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

1. Install the official Vonage Python SDK (pip install)
2. Check the Vonage documentation to determine the easiest programmable voice workflow
3. **Preferred:** Create a ***** outbound voice call to "+15551234567" 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 [REDACTED:TENANT].
4. **If outbound voice calls are not practical in ***** mode but telephony messaging is supported:** Send a ***** SMS message to "+15551234567" 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 Vonage Python SDK — do not make raw HTTP/REST calls. 

## Execution
After creating the script, run it to verify it works:
```bash
cd /home/daytona/[REDACTED:TENANT] && 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 | $0.49 ($0.40–0.70, expensive) |
| Time | No | 0 | 0 | 328s (5–10min, very slow) |
| Efficiency | No | 0 | 0 | 29 tool calls (>25, inefficient) |
| Found Docs | Yes | 0 | — | Touched [REDACTED:TENANT] at developer.vonage.com: yes (5 matching tool calls) |
| Zero Errors | Yes | 0 | — | No errors in tool outputs |
| Syntax Valid | Yes | 0 | — | Code compiles/parses correctly |
| Created Files | Yes | 0 | — | Generated files: 1 (need ≥1) |
| Full Execution | Yes | 0 | — | Method: full_execution, Exit: 0 |

## Run Artifacts

| Artifact | Value |
|----------|-------|
| Conversation turns | 30 |
| Tool call traces | 29 |
| Generated files | 1 |
| Exit code | 0 |
| Completed at | 2026-10-19T08:38:54.151923+00:00 |

### Generated Files

- /home/daytona/app/make_outbound_call.py

## Related Pages

- [Grok API leaderboard](/grok/api)
- [Compare Grok API companies](/grok/api/compare)
- [Agent Landscape](/discoverability)

Canonical URL: https://devtoolarena.com/grok/api/vonage