Networks overview

0xkey’s enclave supports multiple cryptographic curves. Chain-specific transaction construction, broadcast, and policy integration roll out per ecosystem.

Current support

Ecosystem	Status	Notes
EVM — Ethereum, Polygon, Arbitrum, Base, Optimism, and compatible chains	Supported	Phase 1 primary path; in-enclave parsing for legacy + type 1/2/3/4; `viem` and `ethers.js` integration
Solana (SVM)	Partial	Ed25519 signing + in-enclave parsing for legacy + V0; on-chain broadcast (`sol_send_transaction`) is Coming soon
Bitcoin, Cosmos, Aptos, Sui, Tron, Sei, TON, XRP, Stellar, Doge	Address only	Address derivation works inside the enclave; signing via raw payload only; no in-enclave transaction parsing or policy contexts
Stacks, Movement, IOTA, Hyperliquid, Tempo, Spark	Coming soon	No address derivation or parser yet

Capability tiers

Tier	Meaning	Status
L1 — Curve signing	Sign a payload with a private key	Supported (secp256k1, P-256, Ed25519)
L2 — Address derivation	Derive addresses from `addressFormat`	Supported for all listed chains in the table above
L3 — In-enclave transaction parsing	Parse the unsigned tx inside the enclave so the policy engine sees fields	Supported for EVM and Solana, plus EIP-712; Coming soon for everything else
L4 — Fine-grained policy contexts	Apply CEL policy conditions on parsed fields (e.g. `eth.tx.to`, `solana.tx.instructions[*]`)	Supported for EVM + Solana + EIP-712; Coming soon elsewhere
L5 — On-chain broadcast	Submit the signed transaction to a chain RPC	Coming soon (Phase 1 ships a mock for `eth_send_raw_transaction`; high-level send activities error today)

EVM

EVM is the primary Phase 1 integration path. Use @0xkey-io/viem or @0xkey-io/ethers to drop 0xkey signing into any EVM workflow. Broadcast must be performed by your own infrastructure today — 0xkey returns a signed transaction, not a transaction hash. → Ethereum integration guide

Solana

In-enclave parsing of legacy + V0 messages and Ed25519 signing are available, with policy contexts for solana.tx.*. The high-level sol_send_transaction broadcast activity is not wired yet. → Solana guide

Other chains

For chains in the Address only row, the enclave can derive addresses and sign raw payloads, but it cannot parse the transaction or apply field-level policies. Build and serialize the transaction client-side, then call sign_raw_payload. There are no dedicated docs pages for these chains in Phase 1 — track the work on the Roadmap. → Roadmap — chain support

​Current support

​Capability tiers

​EVM

​Solana

​Other chains

Current support

Capability tiers

EVM

Solana

Other chains