Arcium

Encrypted computation on Solana via MPC. Data stays encrypted during computation. The arcium CLI (wraps Anchor) handles init, build, test, and deploy — use MCP for current flags and options.

MCP Tools: search_arcium_docs for discovery (returns page path), then query_docs_filesystem_arcium_docs with cat <path>.mdx for full-page reads (e.g., cat /developers/arcis/mental-model.mdx).

When to Use

Use when:

• You need trustless computation -- cryptographically guaranteed, no single party sees the data
• Multiple parties compute on combined data without revealing inputs
• On-chain state must remain encrypted but computable
• Privacy: sealed-bid auctions, voting, hidden game state, dark pools, confidential DeFi

Constraints:

• Fixed loop bounds required (no variable-length iteration)

Mental Model