Langfuse is an open-source AI engineering platform for teams debugging, analyzing, and iterating on AI agent applications.
Alternatives to Apirelio
Apirelio connects API errors, releases and versions to the customers and integrations they affect. Its customer health score brings together usage, reliability, latency, endpoint adoption and regularity, while release comparisons and proposed OpenAPI contract checks help teams spot risks in production. It also follows an integration from initial connection to regular use and can alert teams to inactivity, high error rates and traffic drops. The web-based service has a free…
DigitalAPI brings APIs from different gateways into a shared catalogue for developers, partners, and AI agents.
API Analytics monitors APIs and provides usage analytics for supported frameworks.
- 4

Helicone
Helicone is a platform for routing, debugging, and analyzing AI applications.
Free planWebAPISelf-hosted6.9From $79 a month - 5

Revenium
Revenium is a cloud-based service for tracking AI costs, controlling spending and connecting usage to business outcomes.
Free planWebAPI6.8Free plan - 6

Clavio
Clavio is a cloud-based AI data analysis platform that turns plain-English questions about business data into analyses, charts, explanations and reports.
Free planWeb6.7From $19 a month - 7

Moesif
Moesif is an API analytics and monetization platform for tracking usage and understanding how customers consume APIs.
Free planWebAPISelf-hosted6.3Free plan - 8
Treblle
Treblle is an enterprise runtime intelligence platform for discovering and securing APIs and agents across clouds, gateways, and technologies.
WebLinuxmacOSSelf-hosted6.3From $233 a month - 9
KeepRouter
KeepRouter is an independently operated API gateway that provides one account for models from multiple providers.
Free planWebAPI6.1Free plan - 10

AI Nazar
AI Nazar provides observability for large language model API calls, with a dashboard for cost, latency, token counts, and errors.
Free planWebAPISelf-hosted6.0Free plan - 11

Atatus API Analytics
Atatus API Analytics monitors API performance in real time, with tools to analyze traffic and investigate slowdowns.
WebAPISelf-hosted5.9 - 12

BetterMeter
BetterMeter is a cloud-hosted analytics platform that tracks traffic across websites, command-line tools, MCP servers and APIs.
Free planWebAPI5.9Free plan - 13

API Tracker
API Tracker helps organizations track and manage the third-party APIs their applications consume.
Free planWebSelf-hosted5.8Free plan - 14

Apitally
Apitally is a cloud service for API usage analytics, performance monitoring, and troubleshooting dashboards, set up with a few lines of code.
Web5.7 - 15

Apiable
Apiable provides a branded API portal and partner onboarding and monetization layer that connects to an existing API gateway.
WebAPISelf-hosted5.5


