Overview
Fastn.ai is a unified integration platform that enables SaaS products to connect securely with hundreds of third-party applications through a single API. Instead of building and maintaining multiple custom connectors, teams use Fastn to authenticate, orchestrate, and monitor integrations from one place.
With Fastn, developers can:
- Add integrations with email, meetings, CRMs, and project tools in minutes.
- Manage authentication, token refresh, and error handling automatically.
- Use the dashboard to monitor workspace activity, latency, and API call metrics.
- Support AI-powered workflows that trigger or combine multiple app actions.
Fastn eliminates repetitive backend work and accelerates go-to-market for integration-driven products.
How it works
- Authenticate — Connect any supported app using OAuth 2.0 via Fastn’s unified authorization flow.
- Configure — Select prebuilt connectors or define custom actions through Fastn’s command layer.
- Integrate — Use a single API to read, write, and automate across multiple apps.
- Monitor — Track integration performance, API usage, and errors in real time from the dashboard.
Fastn’s Unified Command Layer (UCL) enables developers and AI agents to perform tasks through natural-language or API-level commands, such as scheduling meetings, sending emails, or syncing customer data across platforms.
Configure
- Sign in to your Fastn workspace.
- Navigate to Connectors and select Attio.
- Click Connect to securely authenticate your Attio account.
- Configure your workspace to enable actions such as deal and company syncing, record updates, and activity tracking.
- Test the connection and deploy.
Fastn automatically manages OAuth tokens, permission scopes, and data isolation, ensuring a secure, multitenant integration for all connected users.


