Overview

Stytch provides ready-to-use user authentication infrastructure including magic links, OAuth, OTPs, and session management. It handles user storage and token lifecycle so you don't have to build auth from scratch.

Beginner Tip

Use the sandbox environment (https://test.stytch.com) with test credentials before touching production — Stytch gives you a free project with no billing required to start.

Available Data

Stytch data via REST API

Example Response

JSON Response
{
  "status": "success",
  "data": {
    "result": "Data from Stytch",
    "description": "User infrastructure for modern applications",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

request_id Unique ID for this API call, useful for debugging and support tickets.
user_id Stytch's internal identifier for the user; use this to reference the user in future API calls.
email_id Identifier for the specific email address associated with this magic link send.
status_code HTTP status code echoed in the JSON body alongside the top-level HTTP response code.

Implementation Example

Request
const url = "https://stytch.com/";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
  headers: {
  "X-API-Key": "YOUR_API_KEY"
  }
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

401 Unauthorized Incorrect project_id or secret used for Basic Auth
Base64-encode 'project_id:secret' and pass it as 'Authorization: Basic <encoded>' — both values are found in your Stytch dashboard.
400 – email_not_found Attempting to authenticate a user that hasn't been created yet
Create the user first via POST /v1/users, or use the 'create_user_as_pending' flag on login endpoints.
429 Too Many Requests Hitting rate limits on OTP or magic link send endpoints
Implement exponential backoff and respect the Retry-After response header; avoid sending multiple OTPs to the same address in quick succession.

Metadata Score Breakdown

Estimated from metadata — endpoint not independently tested

This score is estimated from observable metadata — HTTPS support, authentication model, declared CORS, and documentation reachability — because the API requires authentication or exposes no publicly testable endpoint. The five-signal breakdown is only shown for live-tested APIs.

Metadata estimate · endpoint not independently tested

Technical Specifications

Auth API Key
HTTPS REQUIRED
CORS NO
Difficulty Intermediate
Verified: 2026-04-04

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