1.getlago / lago
Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics
+31 stars
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3 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics
Zero-dependency 128-bit fixed-point decimal for Go. Exact SQL NUMERIC / PostgreSQL semantics, no heap allocation, no panics — built for money, ledgers and banking arithmetic.
ACH implements a reader, writer, and validator for Automated Clearing House (ACH) files. The HTTP server is available in a Docker image and the Go package is available.