Agent-native self-custody wallet MCP: onboard, wallets, Arbitrum sends, policy-gated payments.
Config is the same across clients — only the file and path differ.
{
"mcpServers": {
"tychi": {
"env": {
"TYI_PASSWORD": "<from tyi_onboard>",
"TYCHI_BRAIN_URL": "<https brain URL — required>"
},
"args": [
"@tychilabs/tyi-mcp@1.0.0-beta.8"
],
"command": "npx"
}
}
}Are you the author?
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Give your AI agent a wallet — onboard, hold funds, send, and pay under policy.
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
npx -y '@tychilabs/tyi-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
Five weighted categories — click any category to see the underlying evidence.
No known CVEs.
Checked @tychilabs/tyi-mcp against OSV.dev.
Click any tool to inspect its schema.
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@tychilabs/tyi-mcp)Give your AI agent a wallet — onboard, hold funds, send, and pay under policy.
Agent-native MCP server (stdio) for Cursor and other hosts. Nine tools: routing (tyi_route), readiness (tyi_status), onboarding, fast wallet lifecycle (create / import / switch), and tyi_chat for balances, sends, and policy-gated payments on Arbitrum One. Private keys encrypted in ~/.tyi on the operator machine; signing never leaves the device. Hosted Tychi brain parses intent and runs the LLM — configure TYCHI_BRAIN_URL (HTTPS recommended; see SECURITY.md).
Agents → @tychilabs/tyi-mcp@1.0.0-beta.8 · Humans → @tychilabs/tyi

tyi_route maps intent → correct tool (avoids slow misuse of tyi_chat)tyi_status checks mode before any wallet actiontyi_onboard + tyi_onboard_schema for first-time setup (password, LLM provider, API key)tyi_create_wallet, tyi_import_wallet, tyi_switch_wallet (fast, no brain loop)tyi_chat for balances, sends, transfers, payments, policy, limits, history~/.tyityi_reset wipes local data when operator confirmsBeta ships on Arbitrum One (chain id 42161) — EVM balances, sends, and UGF gasless payments. More chains in registry; Solana/Sui import supported.
Onchain agent wallet on Arbitrum One — self-custody, local signing, UGF gas routing today:
| Roadmap | What it unlocks |
|---|---|
| Automation | Policy-gated agents — recurring sends, triggers, scheduled flows |
| Trading | Spot swaps across Arbitrum liquidity — agent quotes, operator confirms |
| Lending | Supply on Arbitrum money markets — yield without leaving keystore |
| Borrowing | Collateralized borrow — cap-enforced, fully self-custodial |
tyi_route → tyi_status
→ direct tool (onboard / create / import / switch / reset) ← FAST
→ tyi_chat (balance / send / pay / policy only) ← SLOW
Never call tyi_chat when tyi_status.ready is false.
Import seed or private key → tyi_import_wallet only (never via tyi_chat).
| Tool | Use when |
|---|---|
tyi_route | First — intent → tool map |
tyi_status | Session start — ready? what's missing? |
tyi_onboard_schema | Field schema before onboard |
tyi_onboard | First setup or LLM-only setup |
tyi_create_wallet | New wallet by name |
tyi_import_wallet | Import mnemonic or privkey (EVM / Solana / Sui) |