DropClaw

Permanent encrypted on-chain storage for AI agents on Monad blockchain with x402 payments.

DropClaw gives AI agents a way to store files permanently on-chain. Files are compressed and encrypted client-side (AES-256-GCM) before upload — the server never sees plaintext. It's a blind encrypted relay. Files go directly on-chain as Monad calldata — DropClaw never stores user files. Encryption keys stay with the user.

Quick Start

1. Install

npm install dropclaw

2. Connect to Claude Code

claude mcp add dropclaw -- npx dropclaw-mcp

3. Use Storage

Your agent now has 5 MCP tools:

| Tool | Description | |------|-------------| | dropclaw_payment_options | Get x402 payment requirements (MON, SOL, USDC) | | dropclaw_store | Store encrypted file on Monad (requires payment) | | dropclaw_retrieve | Retrieve and decrypt a file (free) | | dropclaw_pricing | Get cost estimates for a file size | | dropclaw_list | List locally stored files and keys |

How It Works

1. Agent compresses (zlib) and encrypts (AES-256-GCM) files client-side
2. Calls dropclaw_payment_options to get payment addresses and amounts
3. Sends payment on-chain (MON on Monad, SOL on Solana, or USDC on Base)
4. Calls dropclaw_store with the payment tx hash and encrypted blob
5. DropClaw chunks the blob into segments and stores each as calldata on Monad
6. Agent receives a file ID — encryption key is saved locally in ~/.dropclaw/keys.json
7. Call dropclaw_retrieve with the file ID to fetch and decrypt (free)

Pricing

• Storage: $30 USD service fee + Monad gas costs
• Retrieval: Always free
• Syntek subscribers: Syntek subscribers ($100/90 days) get DropClaw access for Syntek memory uploads (gas only, no service fee)
• 50% of fees go to FARNS token buybacks

Payment Options

| Network | Asset | Pay-To | |---------|-------|--------| | Monad (eip155:143) | MON (native) | 0xC86E4a0b90874d8081276AE13e830e23C726229e | | Solana | SOL (native) | 9cQMUBgEPzunpzkjQxV2TMKUUHPFqAHWzNGw9dBzZeSc | | Base (eip155:8453) | USDC | 0xC86E4a0b90874d8081276AE13e830e23C726229e |

API Endpoints

| Method | Endpoint | Description | |--------|----------|-------------| | POST | /vault/store | Store encrypted file (x402 payment required) | | POST | /vault/retrieve/{id} | Retrieve encrypted file (free) | | GET | /vault/pricing?size=N | Cost estimates with live chain prices | | GET | /.well-known/x402 | x402 discovery manifest | | GET | /skill | DropClaw skill file | | GET | /openai-tools | OpenAI function calling definitions | | GET | /claude-tools | Claude tool definitions |

Programmatic Usage

const { DropClawClient } = require('dropclaw');

const client = new DropClawClient({
  apiKey: 'your-api-key'  // or set DROPCLAW_API_KEY env var
});

// Get pricing
const pricing = await client.pricing(1000000); // 1MB file
console.log(pricing.totalEstimateUSD); // ~$30.01

// Store a file (after sending payment on-chain)
const result = await client.store({
  content: Buffer.from('hello world'),
  fileName: 'test.txt',
  paymentTxHash: '0x...',
  paymentNetwork: 'eip155:143'
});
console.log(result.fileId); // Save this!

// Retrieve (free)
const file = await client.retrieve(result.fileId);

Credentials

Credentials are stored in ~/.dropclaw/vault.json. Encryption keys are saved in ~/.dropclaw/keys.json.

npx dropclaw setup    # Interactive setup
npx dropclaw status   # Check connection
npx dropclaw revoke   # Securely erase credentials

Or use environment variables:

export DROPCLAW_API_KEY=dc_...
export DROPCLAW_GATEWAY=https://dropclaw.cloud

License

Proprietary — Farnsworth Labs. All rights reserved.

dropclaw.cloud