4 Best Open Source Merge Alternatives
A curated collection of the 4 best open source and self-hosted alternatives to Merge in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Merge in 2026? The top open-source alternative is Nango — Connect 900+ APIs for AI agents and products.
Other highly rated open-source Merge alternatives include ACI.dev, Pipedream and Supabase.
Connect 900+ APIs for AI agents and products
Nango is a platform for building, running, and maintaining integrations with AI agents and products. It enables developers to connect their applications to 900+ APIs seamlessly, with features for authorization, syncs, webhooks, and agent-ready tools. - AI-Powered Integration Generation: Describe use cases in plain English to generate integration code automatically. - 900+ API Integrations: Access a catalog of pre-built templates for popular APIs or build custom integrations. - Agent-Ready Tools: Expose integrations as MCP tools, APIs, or SDKs for AI agents. - Real-Time Webhooks & Triggers: React to external events with managed webhook handling. - Secure Authorization: OAuth, API keys, and token refresh handled securely for every API. - Managed Syncs & Ingestion: Keep data fresh with incremental, resumable syncs. - Production-Ready Runtime: High concurrency, tenant isolation, and sub-100ms execution latency. - Granular Access Control: RBAC and per-user API scopes for secure integrations. - Self-Hostable: Deploy in your environment for full control and compliance. - Enterprise-Grade Infrastructure: 99.9% uptime, 1M+ integrations managed, and certified security standards. Nango is open-source and can be self-hosted in your environment. It supports local development, CI/CD pipelines, and provides logs, metrics, and alerts for monitoring. The platform is designed for scalability, reliability, and security, making it suitable for enterprise use cases.
Outcome Automation as a Service for professional and financial services firms
ACI.dev is a specialized applied AI lab focused on delivering high-reliability automation solutions tailored for professional and financial services firms. Their Outcome Automation as a Service model accelerates or replaces high-ROI workflows with precision-engineered systems. - Narrow, high-reliability systems: Targets the highest-impact workflows with auditable, structured outputs. - Fixed-scope engagements: Delivered in weeks (typically 8-12) with clear briefing, building, and operational phases. - Flexible deployment: Choose between self-hosting with a perpetual license or a managed service. - Domain-specific automation: Examples include financial spreading for private credit, competitive benchmarking, and audit workpaper automation. - Applied AI research: Focuses on solving complex, high-value problems with invariant, stable outputs. - Offers self-hosting options with perpetual licensing for enterprise control. - Can also be deployed as a managed service for hands-off operation. - Built on applied AI research to ensure reliability and precision in automation.
Build AI agents and automate workflows with 3,000+ APIs
Pipedream is a low-code platform that enables developers to build powerful applications and automate workflows by connecting APIs, databases, and AI services. Whether you need to prompt, run, and deploy AI agents in seconds or create complex workflows with code-level control, Pipedream provides the tools to streamline your processes. - AI Agent Builder: Prompt, run, edit, and deploy AI agents in seconds with built-in MCP servers and 3,000+ integrated apps. - Workflow Automation: Connect APIs, databases, and services with a visual workflow builder for seamless automation. - One SDK, 1000s of Integrations: Access 3,000+ apps and 10,000+ tools with managed authentication and pre-built components. - Secure by Design: SOC 2 Type II, HIPAA, and GDPR compliant architecture to handle sensitive data securely. - Built-in Services: Includes queue, data stores, and one-click private networks for rapid deployment. - Code Generation: AI-powered code generation for any API, enabling faster development cycles. - Enterprise-Ready: Trusted by startups to Fortune 500 companies for scalable and secure automation solutions. Pipedream is a fully managed cloud service with no self-hosting option. It provides enterprise-grade security, compliance certifications, and scalable infrastructure for seamless integration into any tech stack.
Open source Postgres development platform
Supabase is an open-source platform that provides developers with a full suite of tools to build scalable applications quickly. Built on top of PostgreSQL, it offers integrated features like authentication, real-time data synchronization, edge functions, and storage. - Postgres Database: Full PostgreSQL database with built-in authentication and Row Level Security (RLS). - Authentication: Secure user sign-ups and logins with RLS for data protection. - Edge Functions: Write and deploy custom code without managing servers. - Realtime: Enable multiplayer experiences with live data synchronization. - Storage: Store, organize, and serve large files like videos and images. - Vector Embeddings: Integrate ML models to store, index, and search vector embeddings. - Instant APIs: Ready-to-use REST APIs for seamless data access. - Dashboard: Manage your app directly from the dashboard with tools like Table Editor, SQL Editor, and RLS Policies. Supabase is open-source and can be self-hosted. It is built on PostgreSQL, making it highly portable and extensible. The platform is trusted by fast-growing companies worldwide and offers a free tier to get started.
About Merge
Merge is the connective infrastructure layer for production AI, enabling developers and companies to build AI-powered products and agents without managing complex integration stacks.
Key Features of Merge
- Unified API: Connect to hundreds of integrations (apps, tools, LLMs) through a single API for seamless data access and actions.
- Agent Handler: Deploy AI agents with pre-built tool connectors and MCP support for rapid integration.
- Gateway: Route all LLM requests through one API with spend controls, performance monitoring, and model selection.
- Workforce Governance: Push approved models, MCPs, and skills to team AI tools with cost controls and audit logging.
- Integration Observability: Monitor integration health, logs, and performance to ensure reliability and uptime.
- Security & Compliance: SOC 2, HIPAA, and RBAC compliance for enterprise-grade security.
- Extensive Catalog: Browse 1000+ data integrations, MCP connectors, and AI models for flexible deployment.
Tech / Self-Hosting
Merge is a fully managed cloud service with no self-hosting option. The platform is designed for enterprise scalability, security, and reliability, with SOC 2 Type II and HIPAA compliance certifications. Developers can integrate via REST APIs, SDKs, and pre-built React components.