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API Analytics vs Langfuse

Both stand on api analytics software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

API Analytics

Free plan Open source APISelf-hostedWeb

API Analytics combines dashboard monitoring with configurable request collection and raw-data filtering. Review its request limit and self-hosting guidance before relying on it in production.

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Langfuse

Free plan Open source APILinuxSelf-hosted+1

Langfuse brings tracing, prompt workflows, and evaluation features into one AI engineering platform, with both hosted and self-hosted options. The free Hobby plan is limited to two users and 30 days of data access; paid plans add higher limits and support options.

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The facts

API AnalyticsLangfuse
Free planYesYes
Open sourceYesYes
Runs onAPI, Self-hosted, WebAPI, Linux, Self-hosted, Web
Lowest paid planFree or on requestCore: $29 a month
Plans published15
MakerNot publishedNot published
Websiteapianalytics.devlangfuse.com
On api analytics software#1 of 16#2 of 16

API Analytics: what it does well

  • Dashboard provides real-time usage insight.
  • Active monitoring and error notifications are available.
  • IP collection has three configurable levels.
  • Raw request data can be filtered through the data API.
  • Free plan holds up to 1 million stored requests per user.

What to know first

  • New requests replace older ones at the storage limit.
  • Production self-hosting is discouraged while development continues.
  • Account data is deleted after periods of inactivity.

Langfuse: what it does well

  • Tracing captures prompts, latency, tool calls, and retrieval steps.
  • Prompt Management versions and tests prompts.
  • Evaluation includes datasets, experiments, and user feedback.
  • Free Hobby plan includes 50k units monthly.
  • Self-hosting options include Docker Compose, Kubernetes, AWS, and Azure.

What to know first

  • Hobby includes only two users.
  • Hobby data access lasts 30 days.
  • Core costs $29 a month, billed monthly.
  • Teams Add-on costs $300 a month, billed monthly.

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