Open-source Commerce Payments tools

The best open-source Commerce Payments tools, curated: 8 in the registry, including Anthropic releases Commerce Agents — an Apache-2.0 reference blueprint for shopping and merchant agents, python-amazon-sp-api, selling-partner-api-models. Every tool is open-source; each entry lists license, self-hostability, and links.

8 tools · ← all categories · JSON

• 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.