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The best open source alternative to ACI.dev is Nango. If that doesn't suit you, we've compiled a ranked list of other open source ACI.dev alternatives to help you find a suitable replacement.
ACI.dev alternatives are mainly AI Agent Platforms but may also be API Integration Tools. Browse these if you want a narrower list of alternatives or looking for a specific functionality of ACI.dev.
Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.
Build product integrations faster with a comprehensive platform that connects your application to 500+ popular APIs. Nango provides a code-first approach that gives you full control while abstracting away API complexities.
Key features include:
Developer-friendly tools like API-specific pagination, rate limiting, customer-specific configurations, and an AI co-pilot trained on hundreds of integrations. The platform offers enterprise-grade security with SOC 2 Type II compliance, GDPR compliance, data encryption, and granular permissions control.
Scalable infrastructure includes real-time observability, durable execution with automatic retries, invalid credential detection, and comprehensive testing frameworks. Available as open-source with self-hosting options, plus managed cloud service with free tier.
Sent – A unified API for sending messages across SMS, RCS, and apps like WhatsApp.
Sent
