Top 5 Open-Source Alternatives to Flagright

Flagright

Flagright is a risk-based transaction monitoring API for fintech startups.

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Product categories

API API Observability API Testing API Tools APIs Authentication Automated Docs B2B SaaS Developer APIs Developer Tools Error Tracking Libraries And Widgets

Summary

The top open-source alternatives to Flagright are Postman, Inspector, and Insomnia REST. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Postman Landing Page
1

Postman

The Collaboration Platform for API Development
Pricing:
- Open Source
#APIs #API Tools #Developer Tools 27 social mentions
Inspector Landing Page
2

Inspector

Code Execution Monitoring, built for software developers
Pricing:
- Open Source
- Freemium
- Free Trial
- €39.0 / Monthly
#Developer Tools #Monitoring Tools #Productivity 6 social mentions
Insomnia REST Landing Page
3

Insomnia REST

The most intuitive cross-platform REST API Client ð´
Pricing:
- Open Source
#API Tools #API #Developer Tools 121 social mentions
BoxyHQ Landing Page
4

BoxyHQ

B2B SaaS: Make your app enterprise-ready! Authentication - SAML/OIDC SSO, Directory Sync (SCIM 2.0), Audit Logs, Data Privacy Vault, and more!
Pricing:
- Open Source
- Free
- Free Trial
- $49.0 / Monthly (Per connection)
#B2B SaaS #Developer Tools #Security & Privacy
Treblle Landing Page
5

Treblle

Mission Control For Your APIs
Pricing:
- Open Source
- Freemium
- $99.0 / Monthly ("1M API requests/mo", "5 users", "Unlimited projects")
#API Observability #Developer Tools #Developer APIs 25 social mentions