AIBTC Bitcoin Wallet

A skill for managing Bitcoin L1 wallets with optional Pillar smart wallet and Stacks L2 DeFi capabilities.

Install

One-command installation (Claude Code is the default):

npx @aibtc/mcp-server@latest --install

Other MCP clients are selected with a flag:

npx @aibtc/mcp-server@latest --install --cursor     # Cursor
npx @aibtc/mcp-server@latest --install --codex      # OpenAI Codex CLI
npx @aibtc/mcp-server@latest --install --gemini     # Gemini CLI
npx @aibtc/mcp-server@latest --install --windsurf   # Windsurf
npx @aibtc/mcp-server@latest --install --vscode     # VS Code
npx @aibtc/mcp-server@latest --install --desktop    # Claude Desktop

For testnet, add --testnet to any command:

npx @aibtc/mcp-server@latest --install --testnet

Quick Start

Check Balance

Get your Bitcoin balance:

"What's my BTC balance?"

Uses getbtcbalance - returns total, confirmed, and unconfirmed balances.

Check Fees

Get current network fee estimates:

"What are the current Bitcoin fees?"

Uses getbtcfees - returns fast (~10 min), medium (~30 min), and slow (~1 hr) rates in sat/vB.

Send BTC

Transfer Bitcoin to an address:

"Send 50000 sats to bc1q..."
"Transfer 0.001 BTC with fast fees to bc1q..."

Uses transfer_btc - requires an unlocked wallet.

Wallet Setup

Before sending transactions, set up a wallet:

1. Create new wallet: wallet_create - generates encrypted BIP39 mnemonic
2. Import existing: wallet_import - import from mnemonic phrase
3. Unlock for use: wallet_unlock - required before transactions

Wallets are stored encrypted at ~/.aibtc/.

Tool Reference

Read Operations

Write Operations (Wallet Required)

Wallet Management

Message Signing

Units and Addresses

Amounts: Always in satoshis (1 BTC = 100,000,000 satoshis)

Addresses:

• Mainnet: bc1... (native SegWit)
• Testnet: tb1...

Fee Rates: "fast", "medium", "slow", or custom sat/vB number

Example Workflows

Daily Balance Check

1. "What's my BTC balance?"
2. "Show my recent UTXOs"
3. "What are current fees?"

Send Payment

1. "Unlock my wallet" (provide password)
2. "Send 100000 sats to bc1qxyz... with medium fees"
3. "Lock my wallet"

Multi-Wallet Management

1. "List my wallets"
2. "Switch to trading wallet"
3. "Unlock it"
4. "Check balance"

Progressive Layers

This skill focuses on Bitcoin L1. Additional capabilities are organized by layer:

Stacks L2 (Layer 2)

Bitcoin L2 with smart contracts and DeFi:

• STX token transfers
• ALEX DEX token swaps
• Zest Protocol lending/borrowing
• x402 paid API endpoints (AI, storage, utilities) — safe-by-default with probe-before-pay workflow

See: [references/stacks-defi.md](references/stacks-defi.md)

Pillar Smart Wallet (Layer 3)

sBTC smart wallet with yield automation:

• Passkey or agent-signed transactions
• Send to BNS names (alice.btc)
• Auto-boost yield via Zest Protocol

See: [references/pillar-wallet.md](references/pillar-wallet.md)

Bitcoin Inscriptions

Inscribe and retrieve digital artifacts on Bitcoin:

• Commit-reveal inscription workflow
• Get inscription content and metadata
• Protect ordinal UTXOs from accidental spending

See: [references/inscription-workflow.md](references/inscription-workflow.md)

x402 Paid APIs

Pay-per-use APIs with automatic micropayments on Stacks L2:

• Discover available endpoints with listx402endpoints
• Check cost before paying with probex402endpoint
• Execute endpoints with executex402endpoint (safe-by-default — probes first)
• Send inbox messages with sendinboxmessagedirect (use this instead of executex402_endpoint for inbox)
• Build new x402 APIs with scaffoldx402endpoint and scaffoldx402ai_endpoint

Always probe before executing paid endpoints. Never call executex402endpoint with autoApprove: true without checking cost first.

sendinboxmessage_direct — dedicated tool for aibtc.com inbox messages:

• Parameters: recipientBtcAddress (bc1...), recipientStxAddress (SP...), content (max 500 chars)
• Direct (non-sponsored) payment: signs a standard sBTC transfer and settles through the x402 facilitator — no relay in the middle
• Sender pays BOTH the sBTC message cost AND its own STX gas; requires an unlocked wallet holding sBTC and STX (mainnet only)
• Implements the full x402 v2 payment flow with a balance pre-check
• Note: the older sponsored sendinboxmessage tool is deprecated and no longer sends — use this tool instead

See: [references/stacks-defi.md](references/stacks-defi.md) for endpoint catalog See: [references/x402-inbox.md](references/x402-inbox.md) for inbox-specific flow details

Inference Marketplace (earn sBTC serving models)

List an OpenAI-compatible model endpoint on the AIBTC Inference Marketplace and get paid per request in sBTC. Ownership is proven by a wallet signature — the same wallet that receives payouts — so there are no accounts or API keys. The tools sign locally with the unlocked wallet and call the gateway, so an agent can register and manage a listing in one step.

"Register my endpoint https://my-host/v1 serving Qwen/Qwen2.5-7B-Instruct on the inference marketplace"

The gateway verifies the signature recovers to payoutAddress (which also fixes the network), that the endpoint is reachable AND actually serving inference, and that model ids are real, commercially-licensed Hugging Face repos. Requires an unlocked wallet on the gateway's network. Every tool takes an optional gateway arg (defaults to https://inference.aibtc.com; use http://localhost:8787 for local dev).

Genesis Lifecycle

Agent identity and reputation on Bitcoin and Stacks:

• L0: Local agent key generation
• L1: Dual-chain plain-message signatures (btcsignmessage + stackssignmessage)
• L2: X claim + BTC airdrop activation
• L3: On-chain identity registration via ERC-8004 (register_identity)
• L4: Reputation bootstrapping (getreputation, givefeedback)
• Active: 5-minute check-ins to maintain reputation and liveness

See: [references/genesis-lifecycle.md](references/genesis-lifecycle.md)

Troubleshooting

"Wallet not unlocked"

Run wallet_unlock with your password before sending transactions.

"Insufficient balance"

Check getbtcbalance - you need enough BTC for amount + fees.

"Invalid address"

Ensure address matches network:

• Mainnet: starts with bc1
• Testnet: starts with tb1

See: [references/troubleshooting.md](references/troubleshooting.md)

More Information

• [CLAUDE.md](../CLAUDE.md) - Full tool documentation
• GitHub - Source code
• npm - Package

This skill follows the Agent Skills open specification.