# Prelude Grok API Evaluation

**Category:** Verification
**Score:** 68 (C)

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

## Summary

| Metric | Value |
|--------|-------|
| Status | completed |
| Overall score | 68 |
| Grade | C |
| Eval score | 79 |
| Discovery score | 43 |
| Cost | $0.39 |
| Runtime | 1m 15s |
| Tool calls | 16 |
| Errors | 0 |
| Tokens used | 437640 |
| Success | Yes |

## Agent-Readiness Checklist

| Signal | Evidence |
|--------|----------|
| Context7 | Not found |
| llms.txt | https://docs.prelude.so/llms.txt |
| MCP server | https://docs.prelude.so/introduction/mcp |
| Typed SDK | https://github.com/prelude-so/node-sdk |
| OpenAPI | Not found |
| Agent skills | Not found |
| CLI | Not found |

## Evaluation Prompt

````text

# Task
Using https://[REDACTED:TENANT].prelude.so/verify/v2/documentation/introduction, complete the following task:

Using Prelude, build me a script that initiates a phone number verification:

1. Send a verification code (OTP) to the phone number "+15551234567"
2. Print the verification response including the verification ID and status
3. Then attempt to check the verification with a ***** code "000000"
4. Print the check response as JSON

Print each step's output clearly labeled. 

## 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 | Yes | 0 | 0 | $0.39 ($0.20–0.40, good) |
| Time | Yes | 0 | 1 | 75s (1–2min, great) |
| Efficiency | Yes | 0 | 0 | 16 tool calls (≤20, acceptable) |
| Found Docs | Yes | 0 | — | Touched [REDACTED:TENANT] at [REDACTED:TENANT].prelude.so: yes (11 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 | 17 |
| Tool call traces | 16 |
| Generated files | 1 |
| Exit code | 0 |
| Completed at | 2026-10-19T17:33:13.171917+00:00 |

### Generated Files

- /home/daytona/app/verify_otp.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/prelude