Libcage · Paid Tier

Libcage Pro

The same 21KB zero-dependency pure-C agent — with SBOM provenance and team endpoint-policy enforcement. For regulated shops and teams that need to prove what shipped and control where it calls.

Buy Libcage Pro — $99

One-time license · unlocks --sbom + --policy · same binary

CycloneDX SBOM

--sbom emits a SHA-256-pinned CycloneDX 1.5 bill of materials for every build — compiler, source hash, zero deps.

Endpoint policy

--policy file.json allowlists model hosts. Calls to untrusted endpoints fail closed — no silent egress.

License-gated

Pro features unlock with a license file. Free tier stays free; Pro is a one-time $99 unlock, no subscription.

Same zero-dep footprint

No OpenSSL, no new libraries. The SHA-256 and JSON policy parser are hand-rolled in ~120 lines of C.

Pro in action

# Generate provenance for your build
libcage --pro license.key --sbom agent.c

# Enforce egress: only OpenAI + your EPYC lane
libcage --pro license.key --policy policy.json \
  "fix the parser" broken.c "cc -o out broken.c"

Who needs Pro

Regulated teams that must attach an SBOM to every shipped artifact.
Air-gapped orgs that need egress control on autonomous agents.
DevSecOps wiring libcage into CI with audit gates.

Buy Libcage Pro — $99

Local-first · instant license delivery · non-refundable digital good