📚 Documentation - 🚀 Getting Started - 💻 API Reference - 💬 Feedback

Documentation

• Docs Site - explore our docs site and learn more about Auth0
• API Reference - full reference for this library

Getting Started

Requirements

This library supports the following tooling versions:

• Node.js: ^20.19.0 || ^22.12.0 || ^24.0.0

Installation

Using npm in your project directory run the following command:

npm install auth0

Configure the SDK

Authentication API Client

This client can be used to access Auth0's Authentication API.

import { AuthenticationClient } from "auth0";

const auth0 = new AuthenticationClient({
    domain: "{YOUR_TENANT_AND REGION}.auth0.com",
    clientId: "{YOUR_CLIENT_ID}",
    clientSecret: "{OPTIONAL_CLIENT_SECRET}",
});

Management API Client

The Auth0 Management API is meant to be used by back-end servers or trusted parties performing administrative tasks. Generally speaking, anything that can be done through the Auth0 dashboard (and more) can also be done through this API.

Initialize your client class with a domain and token:

import { ManagementClient } from "auth0";

const management = new ManagementClient({
    domain: "{YOUR_TENANT_AND REGION}.auth0.com",
    token: "{YOUR_API_V2_TOKEN}",
});

Or use client credentials:

import { ManagementClient } from "auth0";

const management = new ManagementClient({
    domain: "{YOUR_TENANT_AND REGION}.auth0.com",
    clientId: "{YOUR_CLIENT_ID}",
    clientSecret: "{YOUR_CLIENT_SECRET}",
    withCustomDomainHeader: "auth.example.com", // Optional: Auto-applies to whitelisted endpoints
});

UserInfo API Client

This client can be used to retrieve user profile information.

import { UserInfoClient } from "auth0";

const userInfo = new UserInfoClient({
    domain: "{YOUR_TENANT_AND REGION}.auth0.com",
});

// Get user info with an access token
const userProfile = await userInfo.getUserInfo(accessToken);

Legacy Usage

If you are migrating from the legacy node-auth0 package (v4.x) or need to maintain compatibility with legacy code, you can use the legacy export which provides the node-auth0 v4.x API interface.

Installing Legacy Version

The legacy version (node-auth0 v4.x) is available through the /legacy export path:

// Import the legacy version (node-auth0 v4.x API)
import { ManagementClient, AuthenticationClient } from "auth0/legacy";

// Or using CommonJS
const { ManagementClient, AuthenticationClient } = require("auth0/legacy");

Legacy Configuration

The legacy API uses the node-auth0 v4.x configuration format and method signatures, which are different from the current v5 API:

Legacy Management Client

import { ManagementClient } from "auth0/legacy";

const management = new ManagementClient({
    domain: "{YOUR_TENANT_AND REGION}.auth0.com",
    clientId: "{YOUR_CLIENT_ID}",
    clientSecret: "{YOUR_CLIENT_SECRET}",
    scope: "read:users update:users",
});

// Legacy API methods use promise-based patterns (node-auth0 v4.x style)
management.users
    .getAll()
    .then((users) => console.log(users))
    .catch((err) => console.error(err));

// Or with async/await
try {
    const users = await management.users.getAll();
    console.log(users);
} catch (err) {
    console.error(err);
}

Legacy Authentication Client

import { AuthenticationClient } from "auth0/legacy";

const auth0 = new AuthenticationClient({
    domain: "{YOUR_TENANT_AND REGION}.auth0.com",
    clientId: "{YOUR_CLIENT_ID}",
    clientSecret: "{YOUR_CLIENT_SECRET}",
});

// Legacy authentication methods (node-auth0 v4.x style)
auth0.oauth
    .passwordGrant({
        username: "user@example.com",
        password: "password",
        audience: "https://api.example.com",
    })
    .then((userData) => {
        console.log(userData);
    })
    .catch((err) => {
        console.error("Authentication error:", err);
    });

// Or with async/await
try {
    const userData = await auth0.oauth.passwordGrant({
        username: "user@example.com",
        password: "password",
        audience: "https://api.example.com",
    });
    console.log(userData);
} catch (err) {
    console.error("Authentication error:", err);
}

Migration from Legacy (node-auth0 v4) to v5

When migrating from node-auth0 v4.x to the current v5 SDK, note the following key differences:

1. Method Names: Many method names have changed to be more descriptive
2. Type Safety: Enhanced TypeScript support with better type definitions
3. Error Handling: Unified error handling with specific error types
4. Configuration: Simplified configuration options

Example Migration

Legacy (node-auth0 v4.x) code:

const { ManagementClient } = require("auth0/legacy");

const management = new ManagementClient({
    domain: "your-tenant.auth0.com",
    clientId: "YOUR_CLIENT_ID",
    clientSecret: "YOUR_CLIENT_SECRET",
    scope: "read:users",
});

// With promises
management.users
    .getAll({ search_engine: "v3" })
    .then((users) => {
        console.log(users);
    })
    .catch((err) => {
        console.error(err);
    });

// Or with async/await
try {
    const users = await management.users.getAll({ search_engine: "v3" });
    console.log(users);
} catch (err) {
    console.error(err);
}

v5 equivalent:

import { ManagementClient } from "auth0";

const management = new ManagementClient({
    domain: "your-tenant.auth0.com",
    clientId: "YOUR_CLIENT_ID",
    clientSecret: "YOUR_CLIENT_SECRET",
});

// With promises
management.users
    .list({
        searchEngine: "v3",
    })
    .then((users) => {
        console.log(users);
    })
    .catch((error) => {
        console.error(error);
    });

// Or with async/await
try {
    const users = await management.users.list({
        searchEngine: "v3",
    });
    console.log(users);
} catch (error) {
    console.error(error);
}

Request and Response Types

The SDK exports all request and response types as TypeScript interfaces. You can import them directly:

import { ManagementClient, Management, ManagementError } from "auth0";

const client = new ManagementClient({
    domain: "your-tenant.auth0.com",
    token: "YOUR_TOKEN",
});

// Use the request type
const listParams: Management.ListActionsRequestParameters = {
    triggerId: "post-login",
    actionName: "my-action",
};

const actions = await client.actions.list(listParams);

API Reference

Generated Documentation

• Full Reference - complete API reference guide

Key Classes

• ManagementClient - for Auth0 Management API operations
• AuthenticationClient - for Auth0 Authentication API operations
• UserInfoClient - for retrieving user profile information

Exception Handling

When the API returns a non-success status code (4xx or 5xx response), a subclass of the following error will be thrown.

import { ManagementError } from "auth0";

try {
    await client.actions.create({
        name: "my-action",
        supported_triggers: [{ id: "post-login" }],
        code: "exports.onExecutePostLogin = async (event, api) => { console.log('Hello World'); };",
    });
} catch (err) {
    if (err instanceof ManagementError) {
        console.log(err.statusCode);
        console.log(err.message);
        console.log(err.body);
        console.log(err.rawResponse);
    }
}

Pagination

Some list endpoints are paginated. The SDK provides an iterator so that you can simply loop over the items:

import { ManagementClient } from "auth0";

const client = new ManagementClient({
    domain: "your-tenant.auth0.com",
    token: "YOUR_TOKEN",
});

const response = await client.actions.list();
for await (const item of response) {
    console.log(item);
}

// Or you can manually iterate page-by-page
let page = await client.actions.list();
while (page.hasNextPage()) {
    page = await page.getNextPage();
}

Advanced

Additional Headers

If you would like to send additional headers as part of the request, use the headers request option.

const response = await client.actions.create(
    {
        name: "my-action",
        supported_triggers: [{ id: "post-login" }],
    },
    {
        headers: {
            "X-Custom-Header": "custom value",
        },
    },
);

Request Helpers

The SDK provides convenient helper functions for common request configuration patterns:

import { ManagementClient, CustomDomainHeader, withTimeout, withRetries, withHeaders, withAbortSignal } from "auth0";

const client = new ManagementClient({
    domain: "your-tenant.auth0.com",
    token: "YOUR_TOKEN",
});

// Example 1: Use custom domain header for specific requests
const reqOptions = {
    ...CustomDomainHeader("auth.example.com"),
    timeoutInSeconds: 30,
};
await client.actions.list({}, reqOptions);

// Example 2: Combine multiple options
const reqOptions = {
    ...withTimeout(30),
    ...withRetries(3),
    ...withHeaders({
        "X-Request-ID": crypto.randomUUID(),
        "X-Operation-Source": "admin-dashboard",
    }),
};
await client.actions.list({}, reqOptions);

// Example 3: For automatic custom domain header on whitelisted endpoints
const client = new ManagementClient({
    domain: "your-tenant.auth0.com",
    token: "YOUR_TOKEN",
    withCustomDomainHeader: "auth.example.com", // Auto-applies to whitelisted endpoints
});

// Example 4: Request cancellation
const controller = new AbortController();
const reqOptions = {
    ...withAbortSignal(controller.signal),
    ...withTimeout(30),
};
const promise = client.actions.list({}, reqOptions);

// Cancel after 10 seconds
setTimeout(() => controller.abort(), 10000);

Available helper functions:

• CustomDomainHeader(domain) - Configure custom domain header for specific requests
• withTimeout(seconds) - Set request timeout
• withRetries(count) - Configure retry attempts
• withHeaders(headers) - Add custom headers
• withAbortSignal(signal) - Enable request cancellation

To apply the custom domain header globally across your application, use the withCustomDomainHeader option when initializing the ManagementClient. This will automatically inject the header for all whitelisted endpoints.

Retries

The SDK is instrumented with automatic retries with exponential backoff. A request will be retried as long as the request is deemed retryable and the number of retry attempts has not grown larger than the configured retry limit (default: 2).

A request is deemed retryable when any of the following HTTP status codes is returned:

• 408 (Timeout)
• 429 (Too Many Requests)
• 5XX (Internal Server Errors)

Use the maxRetries request option to configure this behavior.

const response = await client.actions.create(
    {
        name: "my-action",
        supported_triggers: [{ id: "post-login" }],
    },
    {
        maxRetries: 0, // override maxRetries at the request level
    },
);

Timeouts

The SDK defaults to a 60 second timeout. Use the timeoutInSeconds option to configure this behavior.

const response = await client.actions.create(
    {
        name: "my-action",
        supported_triggers: [{ id: "post-login" }],
    },
    {
        timeoutInSeconds: 30, // override timeout to 30s
    },
);

Aborting Requests

The SDK allows users to abort requests at any point by passing in an abort signal.

const controller = new AbortController();
const response = await client.actions.create(
    {
        name: "my-action",
        supported_triggers: [{ id: "post-login" }],
    },
    {
        abortSignal: controller.signal,
    },
);
controller.abort(); // aborts the request

Access Raw Response Data

The SDK provides access to raw response data, including headers, through the .withRawResponse() method. The .withRawResponse() method returns a promise that results to an object with a data and a rawResponse property.

const { data, rawResponse } = await client.actions
    .create({
        name: "my-action",
        supported_triggers: [{ id: "post-login" }],
    })
    .withRawResponse();

console.log(data);
console.log(rawResponse.headers);

Runtime Compatibility

The SDK defaults to node-fetch but will use the global fetch client if present. The SDK works in the following runtimes:

• Node.js 20.19.0+, 22.12.0+, 24+
• Vercel
• Cloudflare Workers
• Deno v1.25+
• Bun 1.0+
• React Native

Customizing Fetch Client

The SDK defaults to node-fetch but will use the global fetch client if present. For most use cases, you can simply ensure your preferred fetch implementation is available globally.

import { ManagementClient } from "auth0";

// Example 1: Add request logging using a custom fetcher
const client = new ManagementClient({
    domain: "your-tenant.auth0.com",
    token: "YOUR_TOKEN",
    fetcher: async (args) => {
        console.log(`Making ${args.method} request to: ${args.url}`);

        // Use the global fetch (built into Node.js 18+)
        const response = await fetch(args.url, {
            method: args.method,
            headers: args.headers as Record<string, string>,
            body: args.body ? JSON.stringify(args.body) : undefined,
        });

        const rawResponse = {
            headers: response.headers,
            redirected: response.redirected,
            status: response.status,
            statusText: response.statusText,
            type: response.type,
            url: response.url,
        };

        if (response.ok) {
            return {
                ok: true as const,
                body: await response.json(),
                headers: response.headers,
                rawResponse,
            };
        } else {
            return {
                ok: false as const,
                error: {
                    reason: "status-code" as const,
                    statusCode: response.status,
                    body: await response.text(),
                },
                rawResponse,
            };
        }
    },
});

// Example 2: Add custom headers to all requests
const clientWithHeaders = new ManagementClient({
    domain: "your-tenant.auth0.com",
    token: "YOUR_TOKEN",
    fetcher: async (args) => {
        // Add custom headers
        const headers = {
            ...(args.headers as Record<string, string>),
            "X-Custom-Header": "my-value",
            "X-Request-ID": crypto.randomUUID(),
        };

        const response = await fetch(args.url, {
            method: args.method,
            headers,
            body: args.body ? JSON.stringify(args.body) : undefined,
        });

        const rawResponse = {
            headers: response.headers,
            redirected: response.redirected,
            status: response.status,
            statusText: response.statusText,
            type: response.type,
            url: response.url,
        };

        if (response.ok) {
            return {
                ok: true as const,
                body: await response.json(),
                headers: response.headers,
                rawResponse,
            };
        } else {
            return {
                ok: false as const,
                error: {
                    reason: "status-code" as const,
                    statusCode: response.status,
                    body: await response.text(),
                },
                rawResponse,
            };
        }
    },
});

// Example 3: Complete custom implementation with axios (advanced)
import axios from "axios";

const clientWithAxios = new ManagementClient({
    domain: "your-tenant.auth0.com",
    token: "YOUR_TOKEN",
    fetcher: async (args) => {
        try {
            // Process headers to resolve any Supplier functions/promises
            const resolvedHeaders: Record<string, string> = {};
            if (args.headers) {
                for (const [key, value] of Object.entries(args.headers)) {
                    if (value !== undefined) {
                        // Handle Supplier type: could be string, Promise<string>, or () => string | Promise<string>
                        const resolvedValue = typeof value === "function" ? await value() : await value;
                        if (typeof resolvedValue === "string") {
                            resolvedHeaders[key] = resolvedValue;
                        } else if (resolvedValue != null) {
                            resolvedHeaders[key] = String(resolvedValue);
                        }
                    }
                }
            }

            const response = await axios({
                url: args.url,
                method: args.method,
                headers: resolvedHeaders, // Now properly typed for axios
                data: args.body,
                timeout: args.timeoutMs || 60000,
                params: args.queryParameters,
                validateStatus: () => true, // Don't throw on HTTP error status codes
            });

            // Convert axios headers to Web API Headers format for rawResponse
            const rawHeaders = new Headers();
            Object.entries(response.headers).forEach(([key, value]) => {
                if (typeof value === "string") {
                    rawHeaders.set(key, value);
                } else if (Array.isArray(value)) {
                    rawHeaders.set(key, value.join(", "));
                } else if (value != null) {
                    rawHeaders.set(key, String(value));
                }
            });

            if (response.status >= 200 && response.status < 400) {
                return {
                    ok: true,
                    body: response.data,
                    headers: response.headers, // axios headers for legacy compatibility
                    rawResponse: {
                        headers: rawHeaders, // Web API Headers for rawResponse
                        redirected: false, // axios doesn't provide this info directly
                        status: response.status,
                        statusText: response.statusText,
                        type: "basic", // axios doesn't provide this, default to 'basic'
                        url: response.config.url || args.url,
                    },
                };
            } else {
                return {
                    ok: false,
                    error: {
                        reason: "status-code",
                        statusCode: response.status,
                        body: response.data,
                    },
                    rawResponse: {
                        headers: rawHeaders,
                        redirected: false,
                        status: response.status,
                        statusText: response.statusText,
                        type: "basic",
                        url: response.config.url || args.url,
                    },
                };
            }
        } catch (error: any) {
            return {
                ok: false,
                error: {
                    reason: "unknown",
                    errorMessage: error?.message || "Unknown error occurred",
                },
                rawResponse: {
                    headers: new Headers(), // Empty Headers object for network errors
                    redirected: false,
                    status: 0,
                    statusText: "Network Error",
                    type: "error",
                    url: args.url,
                },
            };
        }
    },
});

Note: When using a custom fetcher, you need to return an object that matches the expected API response format with ok, body, headers, and rawResponse properties.

Feedback

Contributing

We appreciate feedback and contribution to this repo! Before you get started, please see the following:

• Auth0's general contribution guidelines
• Auth0's code of conduct guidelines

While we value open-source contributions to this SDK, this library is generated programmatically. Additions made directly to this library would have to be moved over to our generation code, otherwise they would be overwritten upon the next generated release. Feel free to open a PR as a proof of concept, but know that we will not be able to merge it as-is. We suggest opening an issue first to discuss with us!

On the other hand, contributions to the README are always very welcome!

Raise an issue

To provide feedback or report a bug, please raise an issue on our issue tracker.

Vulnerability Reporting

Please do not report security vulnerabilities on the public GitHub issue tracker. The Responsible Disclosure Program details the procedure for disclosing security issues.

What is Auth0?

Auth0 is an easy to implement, adaptable authentication and authorization platform. To learn more checkout Why Auth0?

This project is licensed under the MIT license. See the LICENSE file for more info.