How it works

Circuit variants

Foundry mints cohorts across variants so you can match posture to environment, from constrained devices to post-quantum key agreement.

Standard

Baseline compiled identity for general workloads. Suitable where you want request-bound envelopes without the hybrid key-exchange overhead.

Hardened

Tuned for constrained or higher-assurance environments (fleet agents, OT-adjacent gateways). Same envelope contract at the gate; different compile-time posture.

Hybrid

Available for evaluation

A hybrid circuit uses a four-shard prime and X25519 + Kyber768 key exchange, with agent mode for machine-to-machine use. This is the variant DEMO-HACK exercises for agent and MCP paths.

Variant choice does not change the published envelope binding formula. Clients assemble the same fields; the circuit binary changes how challenge/respond material is produced.

Mechanism claims

Hybrid circuits use X25519 + Kyber768 for key agreement today.ShippingThe hybrid variant ships a four-shard prime with a classical + post-quantum key exchange.

The Foundry mints circuit cohorts across standard, hardened, and hybrid variants.ValidatedDEMO-MINT / E6-MINTING engine OpenAPI surfaces multiple mintable variants for evaluation.