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omb-py

Lightweight library for Signed Usage Records (SUR) and signed export bundles.

  • omb.signing — Ed25519 key handling, base64url helpers, JWKS
  • omb.meter — record usage into JSONL or SQLite (set OMB_STORE=sqlite), compute SUR (cid + signature)
  • omb.export — build signed bundles; verify bundle & SURs
  • omb.verify — helpers for verification
  • omb.cli — minimal CLI (record/export/verify)

Install (editable):

pip install -e packages/omb_py

Environment flags:

  • OMB_STORE=sqlite|jsonl (default jsonl)
  • OMB_LOCAL_SUR_PATH / OMB_SQLITE_PATH
  • OMB_RETENTION_MAX_AGE_SECONDS

Stripe monetization features are exposed in the FastAPI service (see services/omb_api).

License: Apache-2.0

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