Verifiable Usage Receipts for AI APIs. Cryptographic proof that your token bill is real. Ed25519 + Fulcio signing, RFC 6962 Merkle proofs, Trillian Tessera log, C2SP witness cosigning, Rekor public anchoring, Rust tokenizer verification. No blockchain.

Inference cost allocation for autonomous AI agent collaborations — Shapley-fair splitting, congestion pricing, token metering. Part of the Agent Trust Stack.

Inference cost allocation for autonomous AI agent collaborations — Shapley-fair splitting, congestion pricing, token metering. Part of the Agent Trust Stack.