CORS Support

Every csv-api endpoint sends the CORS headers browsers need to allow cross-origin requests. Drop in fetch() calls from any frontend, anywhere — no proxy server, no workarounds.

What it does

CORS Support means csv-api responses include the Access-Control-Allow-Origin headers required for browsers to make cross-origin requests. You can call your dataset endpoints directly from a React, Vue, Svelte, or vanilla JavaScript frontend running on any domain — including localhost during development and your production domain. No CORS proxy, no Lambda function in the middle, no server-side API key forwarding required.

How it works

1. 1

   Make a request from your frontend

   Use fetch() or axios from any browser-side code. Pass your API key as an Authorization header or query parameter.

2. 2

   csv-api responds with CORS headers

   The response includes Access-Control-Allow-Origin and friends, so the browser accepts the response.

3. 3

   Render the data

   Parse the JSON, drop it into your component, done.

See it in action

// Direct from a React component, no proxy
const res = await fetch(
  "https://csv-api.com/api/v1/datasets/d_a8f3bc91/records?per_page=10",
  { headers: { Authorization: "Bearer YOUR_API_KEY" } }
);
const { data, meta } = await res.json();
setRows(data);
setTotalPages(meta.total_pages);

Why it matters

• Build static sites with real data

  Use csv-api as the backend for a Jekyll, Hugo, Astro, or Next.js static site without standing up a separate server.

• No CORS proxy server

  Skip the 'spin up an Express middleware just to forward requests' step. Browsers can talk to csv-api directly.

• Works in dev and prod

  Localhost during development, your real domain in production. The same endpoint works in both.

Common use cases

• Static sites that need a tiny bit of dynamic data without a backend

• Single-page apps where the CSV is the database

• JAMstack projects on Netlify, Vercel, or Cloudflare Pages

• Lightweight admin tools built entirely client-side