7 Best Low-Code REST API Builders for SQL & NoSQL Databases

by Kevin McGahey • September 18, 2025

Building APIs for SQL and NoSQL databases used to mean weeks of coding, testing, and securing endpoints. In 2025, low-code REST API builders provide the speed of visual tools with the flexibility of custom logic — helping teams accelerate API delivery without compromising on security or scalability.

At the top of this list is DreamFactory, the only platform that combines no-code simplicity with low-code extensibility, making it a fit for startups, SMBs, and enterprises alike.

1. DreamFactory (Low-Code + No-Code)

Auto-generates REST APIs for 20+ SQL & NoSQL databases with no-code setup and low-code extensibility (Node.js, PHP, Python scripting).

Best For: Companies of all sizes needing no-code APIs with low-code extensibility to build secure, scalable REST APIs.

      • Instant REST APIs for SQL & NoSQL
      • Role-based access control & API keys
      • Scripting in Node.js/PHP/Python
      • Connectors for on-prem & cloud DBs

2. OutSystems

Enterprise low-code with visual API design, database integrations, and extensibility via custom code.

Best For: Large orgs needing end‑to‑end low‑code app + API lifecycle management.

3. Mendix

Low-code platform for API creation/orchestration with SQL & NoSQL connectivity; extend with Java/JS.

Best For: Enterprises needing scalable low‑code development with APIs.

4. WSO2 Choreo

Low-code integration & API platform for building REST/microservices with enterprise security.

Best For: Teams building cloud‑native APIs and integrations with low‑code speed.

5. Boomi Flow (by Dell Boomi)

Low-code integration & API orchestration; connect SQL/NoSQL and SaaS with workflows.

Best For: Companies orchestrating APIs + integrations in a low‑code environment.

6. Appian

Low-code automation platform with API integrations, data fabric, and governance.

Best For: Enterprises needing robust workflows + API orchestration with governance.

7. Hasura (GraphQL-first, Low-Code Friendly)

GraphQL engine that auto-generates APIs over SQL; extend with custom resolvers and remote schemas.

Best For: Developers preferring GraphQL with low‑code extensibility.

Comparison Table

 

Tool

Supported Databases

API Type

Best For

DreamFactory

 SQL & NoSQL REST All company sizes

OutSystems

 SQL & NoSQL via integrations REST, SOAP, GraphQL Large enterprises

Mendix

 SQL + NoSQL connectors REST Enterprise scale

WSO2 Choreo

 SQL & NoSQL REST, GraphQL, microservices Cloud-native teams

Boomi Flow

 SQL, NoSQL, SaaS connectors REST + workflows Integration heavy use cases

Appian

 SQL & Enterprise DBs REST Workflow automation

Hasura

 SQL (Postgres, Snowflake, etc.) GraphQL GraphQL developers

 

Conclusion

In 2025, low-code API builders empower teams to quickly connect SQL and NoSQL databases while still allowing for customization when needed.

-If you want the best of both no-code and low-code worlds, choose DreamFactory.

-For enterprise-scale low-code, OutSystems, Mendix, and Appian stand out.

-For cloud-native APIs, WSO2 Choreo leads.

-For integration-heavy use cases, Boomi Flow delivers.

-For GraphQL-first APIs, Hasura is ideal.

Low-code API builders help organizations deliver secure, scalable APIs for Postgres, MySQL, SQL Server, Snowflake, MongoDB, and beyond — powering modern apps, SaaS integrations, and AI/LLM workflows.