What's the difference between API docs and a developer guide?

Reference docs are exhaustive — every endpoint, every parameter. Guides are task-oriented — how to authenticate, how to paginate. Great portals have both.

Should I use OpenAPI/Swagger?

Yes — OpenAPI spec lets you auto-generate interactive docs, client SDKs, and testing tools from one YAML/JSON file. Industry standard for REST APIs.

Which AI model writes the best API docs?

Claude is excellent — follows complex structural templates, produces accurate multi-language code examples, and maintains consistency across a large document.

How do I keep API docs current?

Generate docs from code (OpenAPI spec from your codebase updates automatically). For narrative docs, include documentation in your definition of done for every API change.

DeepSeek API Documentation Writer Prompt

You are a technical writer with 10+ years creating developer documentation that reduces support tickets by 60%.

Category

💻 Coding

Difficulty

Intermediate

Models

Last Updated

2026-06-28

Works with

ChatGPT Claude DeepSeek

⚙️ Fill in your variables

api name

endpoint description

request parameters

response format

📋 Prompt

You are a technical writer with 10+ years creating developer documentation that reduces support tickets by 60%.

API: [api name]
Endpoint: [endpoint description]
Parameters: [request parameters]
Response: [response format]

Task: Write complete API documentation:

1. ENDPOINT OVERVIEW: Method + URL, description, auth, rate limits
2. REQUEST PARAMETERS TABLE: name | type | required | description | example
3. REQUEST EXAMPLES: cURL, Python (requests), JavaScript (fetch)
4. RESPONSE SCHEMA: Complete JSON schema with types and descriptions
5. RESPONSE EXAMPLES: 200 success, 400 validation error, 401 auth, 404 not found, 429 rate limit
6. ERROR CODES TABLE: code | meaning | how to fix
7. REAL-WORLD USAGE: A complete scenario showing 2–3 chained API calls

Format: OpenAPI 3.0-compatible. Code in labelled blocks.

📄 Example output

# GET /v1/prompts/{slug}

Retrieve a specific prompt by its unique slug.

**Authentication:** Bearer token (header: Authorization: Bearer YOUR_KEY)
**Rate limit:** 100 requests/minute per API key

## Parameters
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
| `slug` | string | ✅ | Prompt identifier | `seo-blog-post-writer` |
| `model` | string | ❌ | Filter for model | `chatgpt` |

## Request
```bash
curl -X GET 'https://api.toolsnova.net/v1/prompts/seo-blog-post-writer' \
-H 'Authorization: Bearer YOUR_API_KEY'
```

```python
import requests
r = requests.get(
'https://api.toolsnova.net/v1/prompts/seo-blog-post-writer',
headers={'Authorization': 'Bearer YOUR_API_KEY'}
)
print(r.json()['prompt']['text'])
```

## Response (200)
```json
{
"slug": "seo-blog-post-writer",
"title": "SEO Blog Post Writer",
"prompt": { "text": "string", "variables": ["string"] },
"last_updated": "2026-06-28"
}
```

## Errors
| Code | Meaning | Fix |
|---|---|---|
| 401 | Invalid API key | Check header format |
| 404 | Slug not found | Verify slug in /v1/prompts list |
| 429 | Rate limit hit | Wait 60s, reduce request frequency |

🏆

Best model for this prompt

Claude

Claude (Opus 4 / Sonnet 4)

💡 Pro Tips

The cURL example is what developers copy first — make it perfect

Error messages should say exactly what to change, not just what went wrong

Include a Quickstart section — first successful API call in under 5 minutes is the goal

Version your API from day one — /v1/ in the URL is much cheaper to add now than retrofit later

⚠️ Common Mistakes

Docs that show only happy-path success responses

Out-of-date examples using deprecated parameters

Missing authentication docs — auth friction creates most support tickets

No error response examples — developers need to know what failure looks like

❓ FAQ

What's the difference between API docs and a developer guide?
Reference docs are exhaustive — every endpoint, every parameter. Guides are task-oriented — how to authenticate, how to paginate. Great portals have both.
Should I use OpenAPI/Swagger?
Yes — OpenAPI spec lets you auto-generate interactive docs, client SDKs, and testing tools from one YAML/JSON file. Industry standard for REST APIs.
Which AI model writes the best API docs?
Claude is excellent — follows complex structural templates, produces accurate multi-language code examples, and maintains consistency across a large document.
How do I keep API docs current?
Generate docs from code (OpenAPI spec from your codebase updates automatically). For narrative docs, include documentation in your definition of done for every API change.

🔗 Related Prompts