Open-source Commerce Payments tools

The best open-source Commerce Payments tools, curated: 10 in the registry, including Subscrio, OpenMeter, Anthropic releases Commerce Agents — an Apache-2.0 reference blueprint for shopping and merchant agents. Every tool is open-source; each entry lists license, self-hostability, and links.

10 tools · ← all categories · JSON

• Subscrio · tool, 2026-09-28
  Subscrio is an open-source entitlement engine for .NET and TypeScript that models subscription plans, feature access, limits, and per-customer overrides in your own database. Open source: yes (MIT); self-hostable; pricing free. Runs as an in-app library, no hosted service; launched 2026-09-28; pre-1.0.
• OpenMeter · tool, 2026-09-19
  Apache-2.0 monetization infrastructure (Go) for AI, API and usage-based products. It ingests CloudEvents, attributes and aggregates usage, enforces entitlements and credit limits, models plans and dynamic prices, and runs the invoice lifecycle while leaving payment and tax processing to external providers. A Docker Compose quickstart runs locally; production uses OpenMeter API and workers with Kafka, ClickHouse and PostgreSQL. The current v1 releases are beta and can break between upgrades.
• Anthropic releases Commerce Agents — an Apache-2.0 reference blueprint for shopping and merchant agents · news, 2026-09-04
  Anthropic published Commerce Agents, an Apache-2.0 reference blueprint for building shopping and merchant agents with Claude, with worked examples across retail, commerce, telecom and entertainment. The repo states plainly: "This is a reference implementation; it is not maintained and does not accept contributions" — a starting pattern to fork, not a dependency.
• python-amazon-sp-api · tool, 2026-09-03
  ~671 stars; complements amzn/selling-partner-api-models (official OpenAPI models); De-facto Python client for the sanctioned Amazon SP-API. Auth via LWA OAuth + AWS IAM/role. No ToS risk (official API); respect SP-API usage plans/rate limits.
• selling-partner-api-models · tool, 2026-09-03
  ~889 stars; complements python-amazon-sp-api (Python client); Official Amazon (amzn org) OpenAPI models to generate SP-API clients in any language. Sanctioned; no ToS risk.
• Shopify CLI · tool, 2026-09-03
  ~729 stars; complements shopify_python_api (official-api); Official Shopify CLI. OAuth login via Partners account. Sanctioned tooling; no ToS risk.
• shopify_python_api · tool, 2026-09-03
  ~1400 stars; complements Shopify CLI (cli); Official Shopify SDK. Auth via API key / OAuth access token. Sanctioned API, no ToS risk; respect Admin API rate limits (leaky-bucket).
• stripe-cli · tool, 2026-09-03
  ~2100 stars; complements stripe-python (official-api); Official Stripe CLI. Auth via API key/OAuth device login. Read/config + webhook testing; never automate money movement without human approval.
• stripe-python · tool, 2026-09-03
  ~2000 stars; complements stripe-cli (cli); Official Stripe SDK. Auth via secret API key. READ/CONFIG ONLY for this atlas: never automate money movement (charges/refunds/transfers/payouts) without explicit human approval. Use restricted keys and test mode.
• Hyperswitch · tool, 2026-08-29
  Open-source payments orchestration (Rust) that routes transactions across paid PSPs (Stripe, Adyen, …) rather than replacing them — a vendor-neutral monetization layer. Apache-2.0.