Data Tools API
FreemiumConvert CSV ⇄ JSON, generate realistic fake test data (including Indian names and addresses), and create UUIDs in bulk.
Documentation
Convert CSV ⇄ JSON, generate realistic fake test data (including Indian names and addresses), and create UUIDs in bulk.
What you get
- CSV → JSON with automatic delimiter detection and type inference
- JSON → CSV from an array of objects
- Fake data — names, emails, phones, addresses, companies and more, in 9 locales including
en_INandhi_IN - UUIDs — version 4 or 7, up to 1,000 per call
Great for test fixtures, demos, database seeding, spreadsheet imports and ETL scripts.
Quick start
Subscribe to a plan (the Basic plan is free), then call the API at https://data-tools.p.apihiver.com with your key in the X-API-Key header:
curl "https://data-tools.p.apihiver.com/v1/fake?fields=name,email&count=2" \
-H "X-API-Key: YOUR_API_KEY"Endpoints
| Method | Path | What it does |
|---|---|---|
POST | /v1/csv-to-json | Convert CSV (with a header row) to JSON rows |
POST | /v1/json-to-csv | Convert JSON rows (objects) to CSV |
GET | /v1/fake | Generate realistic fake records for testing |
GET | /v1/uuid | Generate UUIDs (v4 random or v7 time-ordered) |
Open the Endpoints tab to see every parameter, example request and example response, and to try the API live.
Errors
Every error is JSON with the same shape:
{"error": {"code": "INVALID_INPUT", "message": "csv: Field required"}}| HTTP | Code | Meaning |
|---|---|---|
| 400 | INVALID_INPUT | A parameter is missing or has the wrong format — the message says which |
| 401 | UNAUTHORIZED | Missing or invalid X-API-Key |
| 429 | — | Plan quota or rate limit reached (see the X-RateLimit-* headers) |
| 502 / 503 / 504 | — | A data source or the API server is temporarily unavailable — retry after a few seconds |
Data & privacy
Data comes from computed on our servers with Python's csv module and Faker.
Data Tools API FAQ
- Is the Data Tools API free?
- Yes. The Basic plan is free and includes 500 requests per month — no card needed. Paid plans start at ₹299 per month for 10,000 requests.
- How much does the Data Tools API cost?
- Basic: free for 500 requests; Pro: ₹299/month for 10,000 requests; Ultra: ₹999/month for 50,000 requests; Mega: ₹2,499/month for 2,00,000 requests. Billing is monthly and you can cancel any time.
- How do I use the Data Tools API?
- Subscribe to a plan on APIHiver, create an API key in the Console, then send requests to https://data-tools.p.apihiver.com with your key in the X-API-Key header. You can also try every endpoint in the browser playground first.
- What endpoints does the Data Tools API have?
- It has 4 endpoints: Convert CSV (with a header row) to JSON rows (POST /v1/csv-to-json); Convert JSON rows (objects) to CSV (POST /v1/json-to-csv); Generate realistic fake records for testing (GET /v1/fake); Generate UUIDs (v4 random or v7 time-ordered) (GET /v1/uuid).
- What are the Data Tools API rate limits?
- Basic: 2 requests per second; Pro: 5 requests per second; Ultra: 10 requests per second; Mega: 20 requests per second. Monthly quotas depend on the plan; every response includes X-RateLimit headers showing what's left.
- Can I use one API key for the Data Tools API and other APIs?
- Yes. One APIHiver key works for every API you subscribe to, so you don't need a separate account or key per provider.
Endpoints
4 endpoints — full list is in the sidebar on larger screens.