String Web Access API
A high-performance web access API. Don't get blocked, get data.
The String Web Access API is a single interface for retrieving data from the web at scale. Point it at a URL and it picks the right strategy automatically — from a lightweight request-based fetch to a full browser with residential proxies and antibot handling — so you get the data instead of a block page.
One API key gives you everything an agent or scraper needs: unblocked fetches, Google search, a remote browser over CDP, and screenshots & browser actions.
What you can do
Fetch a page
Retrieve any URL as structured JSON, raw bytes, or clean Markdown — with JavaScript rendering, proxies, and captcha solving handled for you.
Extract structured data
Pass a JSON Schema and get back only the fields you asked for, extracted from the page with AI.
Search Google
Run a Google search and get the top organic results as structured JSON.
Drive a real browser
Connect Puppeteer or Playwright to a remote Chrome over a CDP WebSocket.
Capture screenshots
Render a page and capture a screenshot, or run a sequence of browser actions before capturing.
API reference
Full request/response reference for every endpoint, with examples.
Make your first request
Every request is authenticated with a Bearer API key. Send a POST to /v1/fetch with a target URL:
curl https://request.usestring.ai/v1/fetch \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{ "url": "https://example.com", "format": "markdown" }'See the Quickstart for a step-by-step walkthrough, or Authentication for how API keys work.
Which endpoint should I use?
| If you want to… | Use |
|---|---|
| Get the content of a known URL | /fetch |
| Pull specific fields out of a page | /fetch with jsonSchema |
| Find pages for a query | /search |
| Drive a page interactively (automation) | /wss browser |
| Capture an image of a page | Screenshots |
Need access to a restricted destination?
Some destinations require approval before use. Each access-control case returns its own status code so you can branch on it — see Access control & KYC. Contact support@usestring.ai for access.