seashail

# Seashail

> English | **[简体中文](README.zh-CN.md)**

Agent-native, self-hosted trading infrastructure for crypto. Seamless OpenClaw integration. 

Seashail is a local binary that exposes an [MCP](https://modelcontextprotocol.io/) server over stdio. Agents can query balances, execute trades, and manage DeFi positions while Seashail enforces a policy engine and keeps key material encrypted at rest. The agent never sees private keys.

**[Full Documentation](https://seashail.com/docs)** | **[Install](#install)** | **[Quickstart](#quickstart)** | **[Supported Chains](#supported-chains)** | **[MCP Tools](#mcp-tools)** | **[Security Model](#security-model)**

## Features

- **60+ MCP tools** — spot swaps, sends, bridging, DeFi (lending, staking, liquidity), perpetual futures, NFTs, prediction markets, pump.fun
- **Policy engine** — per-transaction and daily USD caps, slippage limits, leverage caps, allowlists, operation toggles, tiered approval (auto-approve / confirm / hard-block)
- **Non-custodial key storage** — Shamir 2-of-3 secret sharing for generated wallets, AES-256-GCM encryption for imported wallets, passphrase sessions with configurable TTL
- **Multi-agent safe** — proxy/daemon architecture lets multiple agents (Claude Desktop, Gemini, Codex, etc.) share one keystore and passphrase session without split-brain
- **Multi-chain** — Solana, Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Monad, Bitcoin (+ configurable EVM chains and testnets)
- **Agent-agnostic** — works with any MCP-capable client; one-click templates for 10+ agents/editors
- **Scam protection** — optional signed scam-address blocklist, OFAC SDN checking, recipient/contract allowlists
- **Verification** — release assets signed with Sigstore Cosign, SBOM generation (SPDX-JSON)

## Install

Seashail is distributed via GitHub Releases and can also be built from source. Your agent runs it as an MCP stdio server via `seashail mcp`.

### macOS / Linux (installer)

```bash
curl -fsSL ht