CSV to API in seconds
Upload any CSV and get a live REST API endpoint immediately.
Coming soon
Turn your CSV file into an API.
Instantly.
Upload your CSV file. Get a live REST API. No backend needed.
Everything you need. Nothing you don't.
Built for developers, data teams, and AI builders.
No backend needed
We host everything. No servers, no databases, no DevOps.
Ready for AI pipelines
Serve structured data directly to LLMs, agents, and AI workflows via REST.
How it works
Three steps from CSV to live API.
Upload your CSV
Drop your CSV file or click to select. We support standard comma-separated values with headers.
API Butler generates an API
We analyze your data and create a secure, queryable REST API with filtering and pagination.
Use your API endpoints
Get instant base URL and docs. Integrate with any client, frontend, or automation tool.
Use cases
From prototypes to production integrations.
Prototyping
Turn spreadsheets into APIs for quick MVPs and demos without a backend.
Internal tools
Expose internal data as APIs for dashboards, scripts, and internal apps.
AI datasets
Serve structured data to LLMs and AI pipelines via a simple REST API.
CSV integrations
Connect tools that expect an API to your existing CSV exports.
API example
Your data becomes a standard REST API. Filter, paginate, and integrate anywhere.
Request
HTTP
GET /v1/apis/products
Response
JSON
{ "data": [ { "id": 1, "name": "Product A", "price": 19.99 }
] }
FAQ
Common questions about API Butler.
No. Upload a CSV and you get a working API. For integration, basic HTTP knowledge or our docs are enough.
Limits depend on your plan. Starter supports up to 1,000 rows; Pro up to 50,000; Growth supports up to 200,000 rows.
Yes. APIs include authentication, rate limiting, and HTTPS. Pro and Growth add more control.
Yes. You can replace or update your dataset; the API URL stays the same so integrations keep working.
Your APIs stop serving traffic after the billing period. You can export your data; reactivating restores your APIs.