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Questions or issues? Contact us at api-support@manus.ai. An Open App is a third-party integration that acts on behalf of a Manus user. Instead of using a static API key tied to a single account, an Open App lets each user grant your app access through a standard OAuth2 authorization flow, after which your app receives access tokens to call the Manus API on their behalf. Open Apps are scoped to a team — only members of the same team can authorize the app. This guide covers how to create an Open App, run the OAuth2 flow, and use the resulting tokens.
Team only: Open App creation and authorization require a Team account. Personal accounts cannot create or authorize Open Apps.

App management

Creating an Open App

Create an Open App from the Manus Developers settings. Fill in the app name, description, redirect URIs, and homepage URL. After creation, you’ll receive a client_id and an initial client_secret. The secret is only shown once — store it securely.

Redirect URI rules

  • Must be an absolute URI (include scheme).
  • No wildcards (*). No fragments (#).
  • Forbidden schemes: javascript, data, file, about, vbscript.
  • http / https must include a host.
  • Custom schemes are allowed (e.g. com.example.app://oauth) for native apps.
  • Matched exactly at authorization time (RFC 6749 §3.1.2).

App types

Standard OAuth client

A standard OAuth client is the default Open App type. Access is restricted to the scopes you configure, and only users in the same team as the client owner can authorize it. This type is suitable for most third-party integrations.

Trusted team client

A trusted team client is designed for internal integrations that need unrestricted access to the Manus API, similar to using an API key but with per-user authorization. Choose the app type on the same page where you configure scopes in the Manus Developers settings; an existing standard client can be upgraded there. Only a Team Owner or Admin can create or upgrade to this type. Key differences from standard OAuth clients:
  • Ignores all scope restrictions — can access every API endpoint including admin-only ones
  • Can view and manage all tasks (not limited to tasks created by the app)
  • Has full access to all connectors without per-connector user authorization
  • The consent page warns users that the app will have full access to their data
  • Upgrading an existing client to trusted invalidates all previously issued tokens (users must re-authorize)
When to use:
  • Internal team tools that need full API access
  • Automation that requires managing all user resources
When NOT to use:
  • Third-party integrations (use a standard team client with minimal scopes)
  • Clients that only need to create and manage their own tasks (use create_task scope instead)

Trusted public client

A trusted public client bypasses standard endpoint scope restrictions like a trusted team client, but is not restricted to a single team — any Manus user can authorize it. Hidden text content is an additional capability available only to a Trusted public client, not to a Trusted team client or API key; see Hidden application context. This type is currently not publicly available and is only offered to approved partners. Contact api-support@manus.ai if you are interested.

Secret management

Each app can have up to 5 active client secrets, enabling zero-downtime rotation. Create and revoke secrets from the Manus Developers settings.
1

Create a new secret

Generate a new secret in the settings page. The secret is shown in plaintext — this is the only time it’s visible.
2

Update your application

Configure your app to use the new secret.
3

Verify

Confirm the new secret works in production.
4

Revoke the old secret

Revoke the old secret in the settings page. It is immediately invalidated.

OAuth flow

Overview

The implementation follows RFC 6749 (Authorization Code Grant) and RFC 7636 (PKCE). Three modes are supported:

Scopes

Configure the scopes your app can request in the Manus Developers settings.
use_my_browsers is a separate scope from use_connectors — they do not overlap.
Trusted team clients and trusted public clients bypass all scope restrictions — you do not need to configure scopes for them.

Authorization flow

Step 1: Redirect to authorization

Send the user to the consent page:
The consent page displays the app’s name, requested scopes, and connector list. The user reviews and approves. The scope is determined automatically from the app’s configuration.

Step 2: Receive the authorization code

After approval, the user is redirected to your registered callback:
Authorization code properties:
  • Format: code_{client_id}_{shortuuid}
  • Expires in 10 minutes
  • Single-use (atomic consumption, prevents replay)

Step 3: Exchange code for tokens

Also supports application/x-www-form-urlencoded and Authorization: Basic header for client credentials (RFC 6749 §2.3.1). Success response:

Identify the authorized user

If your app needs a stable Manus user ID for account linking, call user.me with the access token. Trusted clients also receive the user’s display name, email, and avatar:
Do not parse undocumented claims from the access token. user.me does not require an additional OAuth scope and does not modify user data.

Step 4: Refresh tokens

  • PKCE + Secret flow: both client_secret and code_verifier are required for refresh.
  • Secret flow: client_secret is required for refresh.
  • PKCE flow: client_secret is not required for refresh.
  • Refresh atomically revokes the old token pair and issues new ones (prevents refresh token replay).

Token invalidation

A token is invalid when any of these apply:
  • Expired
  • Explicitly revoked
  • The associated Open App has been deleted
  • The app’s scopes were expanded (adding new scopes or connector UIDs invalidates all existing tokens)
  • The client was upgraded to trusted team type

Revoking tokens

App-side: revoke a single token (RFC 7009)

  • token_type_hint is optional (access_token or refresh_token) — optimizes lookup order.
  • Always returns HTTP 200 if client credentials are valid, regardless of whether the token exists (RFC 7009).
  • PKCE-issued tokens do not require client_secret for revocation.

User-side: revoke grants

Users can view and revoke authorized Open Apps from Authorized Apps settings. Revoking an app invalidates all of its active tokens.

Available endpoints

Include the access token in the Authorization header:
Standard OAuth clients can access the following v2 endpoints. Each endpoint page lists its required scope. Trusted clients can access every v2 endpoint without scopes.
Standard OAuth clients cannot access endpoints that are not listed above, including agent.*, webhook.create, webhook.list, webhook.delete, and usage.*. They can call skill.list with create_task or manage_all_tasks; see skill.list for the returned skills.

API behavior with OAuth

This section covers how the API behaves differently when using OAuth tokens compared to API keys.

Task visibility

With create_task scope, your app can only see and operate on tasks it created. With manage_all_tasks, all of the user’s tasks are accessible — same as API key. Trusted clients always have full access to all tasks. This client boundary does not extend to website.*; see Website access. For artifact.list, restricted create_task clients are always filtered to their own app’s creation tasks. Older artifacts without indexed source metadata may be omitted even when no credential filter is passed. See the Artifacts guide for source filtering and pagination behavior.

Connectors

If your app uses connectors (e.g. GitHub, Notion), enable the use_connectors scope and select the connectors your app needs in the Manus Developers settings. During authorization, the consent page shows your app’s connector list and the user chooses which ones to grant. Trusted clients have full access to all connectors and skip per-connector authorization. Users can revoke individual connectors at any time, so your app should not assume a previously authorized connector will always be available. The API handles unauthorized connectors differently depending on how you pass them:
  • Explicitly passed in message.connectors — returns an error if the user has not authorized the connector:
  • Not passed (relying on defaults) — unauthorized connectors are silently filtered out. The task is created normally but without those connectors.
When you encounter a connector authorization error, redirect the user to update their grants:

Skills

Open Apps can bundle private skills (up to 50 per app) that are automatically available to Manus in tasks created by the app. Manage skills from the Manus Developers settings. An Open App can call skill.list to list installed skills. This inventory call does not change task skill selection. See that endpoint for the returned scope and project_id rules, and task.create for task skill selection. To customize which skills are available for a specific task, pass skill IDs in message.enable_skills when calling task.create or task.sendMessage. To force Manus to use specific skills, pass them in message.force_skills.

Webhook

Each Open App can configure a dedicated webhook URL to receive event notifications. Set the webhook URL in the Manus Developers settings. The URL must be HTTPS.
Webhook events are scoped to the Open App — you will only receive notifications for tasks created through this app’s API, not tasks created manually by the user in the Manus client.
See the Webhooks guide for event types and the Webhook Security guide for signature verification.

Reference

Rate limits

OAuth endpoints

OpenAPI v2 endpoints

When calling v2 endpoints with an OAuth token, the same per-user rate limits apply as with API keys. All tokens belonging to the same user share a single counter. See Rate Limits for per-endpoint limits. Exceeding any limit returns HTTP 429 Too Many Requests.

Error handling

Authentication errors (HTTP 401)

When calling OpenAPI v2 endpoints, the following 401 errors may occur: Recommended 401 handling flow:

Token endpoint errors (/oauth/token and /oauth/revoke)

All responses include an X-Request-Id header for troubleshooting.

Insufficient scope

When calling an OpenAPI v2 endpoint without the required scope:
When using a connector the user has not authorized (see Connectors for handling):

Best practices

  1. Store secrets securely. client_secret is only shown once at creation. Use a secrets manager — never hardcode it.
  2. Request minimal scopes. Only request what your app actually needs. Avoid manage_all_tasks unless you truly need access to all user tasks.
  3. Implement token refresh. Access tokens expire in 24 hours. Use the refresh token to renew automatically.
  4. Handle 401 correctly. Check for reauthorization_required before attempting refresh — see Authentication errors for the full flow.
  5. Rotate secrets regularly. Use multi-secret support for zero-downtime rotation.
  6. Prefer PKCE for client-side apps. Native apps and SPAs should use PKCE — never embed a client_secret in client-side code.
  7. Validate the state parameter. Always verify the returned state matches the value you sent to prevent CSRF attacks.
  8. Implement backoff on 429. Token endpoints are limited to 60 req/min. Use exponential backoff with jitter.