Asi crypto-fiat-bridge

Automated APT-to-fiat payment pipeline via PYUSD stablecoin bridge. Load when converting APT holdings to OpenRouter API credits, bridging Aptos tokens to Ethereum, or executing crypto-to-fiat payments.

install

source · Clone the upstream repo

git clone https://github.com/plurigrid/asi

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/plurigrid/asi "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/crypto-fiat-bridge" ~/.claude/skills/plurigrid-asi-crypto-fiat-bridge && rm -rf "$T"

manifest: skills/crypto-fiat-bridge/SKILL.md

source content

crypto-fiat-bridge

Overview

Automated crypto-to-fiat payment pipeline for converting APT holdings to OpenRouter API credits via the PYUSD stablecoin bridge. All operations require explicit approval.

Architecture

APT (Aptos) --[Liquidswap DEX]--> PYUSD0 (Aptos) --[Wormhole Bridge]--> PYUSD (Ethereum) --[Coinbase Commerce]--> OpenRouter

Workflow Steps

1. Check APT Balance

THRESHOLD = 0.5 APT (minimum for gas + fees)

aptos_balance() -> current_apt
IF current_apt < THRESHOLD:
  ABORT "Insufficient APT balance"

2. Execute APT -> PYUSD0 Swap

aptos_swap(
  fromCoin: "APT",
  toCoin: "PYUSD0",
  amount: swap_amount,
  dex: "liquidswap",
  slippage: 0.5
)
-> Returns decision_id for approval

3. Bridge PYUSD0 -> PYUSD

Wormhole bridge transaction:
- Source: Aptos PYUSD0
- Destination: Ethereum PYUSD
- Finality: ~15 minutes

4. Pay OpenRouter via Coinbase Commerce

swapAndTransferUniswapV3Token(
  recipient: OPENROUTER_MERCHANT_ADDRESS,
  token: PYUSD_ADDRESS,
  amount: payment_amount,
  poolFee: 3000
)

MCP Tools Used

```
aptos_balance
```
- Check APT/PYUSD0 holdings
```
aptos_swap
```
- Execute APT -> PYUSD0 via Liquidswap
```
aptos_transfer
```
- Send tokens to bridge address
```
aptos_approve
```
- Confirm pending transactions

Security

Approval Requirements

All transactions use
```
confirmation_mode
```
approval
No automatic execution of value transfers

Each step requires explicit

aptos_approve(decision_id, approve: true)

Key Management

# Keys accessed ONLY via fnox/age encryption
fnox get aptos-private-key | age -d -i ~/.age/key.txt

NEVER store raw private keys in environment variables, config files, skill definitions, or database tables.

Verification Queries

-- Validate pending transactions
SELECT tx_hash, amount, timestamp
FROM crypto_bridge_transactions
WHERE status = 'pending'
ORDER BY timestamp DESC;

Ledger location:

/Users/alice/worldnet/ledger.duckdb