Molten

AI-powered MCP DevTools for Mantle Network

Mantle Turing Test Hackathon 2026 — Track 05: AI DevTools

Building on Mantle means juggling multiple tools — a security auditor, gas profiler, transaction simulator, wallet profiler, contract source fetcher, and test generator. Every context switch kills flow.

Molten collapses all of it into one MCP server. Ask your AI assistant in plain English.

Tools (12)

Security & Audit

| Tool | What it does | |------|-------------| | audit_contract | Security audit — severity-ranked findings (critical → info) with fix recommendations | | compare_contracts | Regression check — detect new vulnerabilities and gas changes between two contract versions | | generate_test_cases | Auto-generate Foundry PoC exploit tests from audit findings |

Gas & Deployment

| Tool | What it does | |------|-------------| | analyze_gas | Gas optimization — before/after Solidity snippets, estimated savings in gas + MNT cost | | estimate_deployment_cost | Estimate MNT deploy cost using live Mantle gas price | | get_mantle_gas_price | Real-time gas price on mainnet or Sepolia in wei, Gwei, and MNT/MGas |

On-Chain

| Tool | What it does | |------|-------------| | simulate_tx | Dry-run a transaction against live Mantle state — gas estimate or decoded revert reason | | decode_calldata | Decode raw hex calldata to human-readable function name and parameters | | get_contract_source | Fetch verified source code and ABI from Mantle Explorer |

Intelligence & Compliance

| Tool | What it does | |------|-------------| | explain_error | Decode any EVM revert or hex error into plain English with actionable fixes | | check_mantle_patterns | Compliance check for 8 Mantle-specific patterns (see below) | | get_wallet_intel | Nansen AI wallet profiling — entity labels, smart money, exchange/fund/hacker flags |

Supported Patterns (check_mantle_patterns)

| Pattern | Description | |---------|-------------| | rwa | Real World Asset tokenization — access control, pausability, USDY/mETH integration | | meth | mETH staking integration — correct interface, unstaking delays, slashing handling | | layerzero | LayerZero cross-chain messaging — endpoint usage, gas config, retry logic | | general | General Mantle L2 best practices — L1 fee awareness, MNT gas token, block.timestamp | | agni | Agni Finance DEX (Uniswap V3 fork) — pool interface, tick math, callback reentrancy | | merchant_moe | Merchant Moe DEX (LB protocol) — LBPair bin logic, flash loan callbacks | | fbtc | FBTC wrapped Bitcoin — mint/burn/bridge interface, fee handling, custodian confirmations | | lendle | Lendle lending (Aave V2 fork) — aToken interfaces, health factor, liquidation logic |

Quick Start

npm install -g @awedev/molten-mcp

Or use directly with npx (Claude Desktop / Cursor):

npx --yes @awedev/molten-mcp

Configuration

Prerequisites

At minimum you need one AI provider API key:

| Provider | Env var | Where to get | |----------|---------|-------------| | Anthropic (default) | ANTHROPIC_API_KEY | console.anthropic.com | | MiMo (Xiaomi) | MIMO_API_KEY | xiaomimimo.com | | OpenAI | OPENAI_API_KEY | platform.openai.com | | Google Gemini | GEMINI_API_KEY | aistudio.google.com | | Tencent Hunyuan | TENCENT_HUNYUAN_API_KEY | hunyuan.tencent.com |

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "molten": {
      "command": "npx",
      "args": ["--yes", "@awedev/molten-mcp"],
      "env": {
        "AI_PROVIDER": "anthropic",
        "ANTHROPIC_API_KEY": "sk-ant-..."
      }
    }
  }
}

Claude Code

claude mcp add molten -s user \
  -e AI_PROVIDER=anthropic \
  -e ANTHROPIC_API_KEY=sk-ant-... \
  -- npx --yes @awedev/molten-mcp

Cursor / VS Code

Add to .cursor/mcp.json or .vscode/mcp.json:

{
  "servers": {
    "molten": {
      "command": "npx",
      "args": ["--yes", "@awedev/molten-mcp"],
      "env": {
        "AI_PROVIDER": "openai",
        "OPENAI_API_KEY": "sk-..."
      }
    }
  }
}

AI Providers

Set AI_PROVIDER in env to switch providers:

| AI_PROVIDER | Key env var | Default model | |---------------|-------------|---------------| | anthropic (default) | ANTHROPIC_API_KEY | claude-sonnet-4-6 | | mimo | MIMO_API_KEY | mimo-v2.5-pro | | openai | OPENAI_API_KEY | gpt-4o | | gemini | GEMINI_API_KEY | gemini-2.5-flash | | tencent-hunyuan | TENCENT_HUNYUAN_API_KEY | hunyuan-pro |

Override model per-provider with ANTHROPIC_MODEL, MIMO_MODEL, OPENAI_MODEL, GEMINI_MODEL, or TENCENT_HUNYUAN_MODEL.

Environment Variables

# Required — pick at least one AI provider
ANTHROPIC_API_KEY=sk-ant-...
MIMO_API_KEY=tp-...
OPENAI_API_KEY=sk-...
GEMINI_API_KEY=...
TENCENT_HUNYUAN_API_KEY=...

# Optional — Nansen wallet intelligence (required for get_wallet_intel)
NANSEN_API_KEY=...

# Optional — Mantle Explorer (Blockscout)
MANTLE_EXPLORER_API_KEY=...

# Optional — custom RPC endpoints
MANTLE_RPC_URL=https://rpc.mantle.xyz
MANTLE_SEPOLIA_RPC_URL=https://rpc.sepolia.mantle.xyz

Example Usage

Once connected to your AI assistant:

"Audit this contract for vulnerabilities"
→ audit_contract returns severity-ranked findings with fix recommendations

"Compare v1 and v2 of my contract — did I introduce any new bugs?"
→ compare_contracts returns regressions, improvements, and gas delta

"Generate Foundry tests for the vulnerabilities you found"
→ generate_test_cases produces a complete .t.sol file with PoC exploits

"Optimize gas usage in this contract"
→ analyze_gas returns before/after snippets + MNT cost savings per call

"How much will it cost to deploy this contract on Mantle?"
→ estimate_deployment_cost returns MNT cost using live gas price

"Decode this calldata: 0xa9059cbb..."
→ decode_calldata returns function name and decoded parameters

"Fetch and audit the contract at 0x1234 on Mantle Sepolia"
→ get_contract_source → audit_contract chained automatically

"Simulate sending 1 MNT to 0xabc from 0xdef"
→ simulate_tx returns gas estimate in MNT or decoded revert reason

"Who owns 0xabc...? Are they a known exploiter?"
→ get_wallet_intel returns Nansen labels, smart money flags, entity name

"Does this contract follow Agni Finance patterns?"
→ check_mantle_patterns with pattern=agni

CI/CD Integration

Molten includes a GitHub Actions workflow that auto-audits changed Solidity files on every PR:

# .github/workflows/molten-audit.yml is included in this repo
# Add your AI provider key as a GitHub secret:
# Settings → Secrets → ANTHROPIC_API_KEY

Run the audit script directly:

npx tsx scripts/ci-audit.ts contracts/MyToken.sol
# Exit 0 = passed, Exit 1 = critical findings (blocks merge)
# High findings emit GitHub Actions warnings but do not block

Mantle-Native Design

System prompts encode Mantle-specific knowledge:

• L1 data fee awareness — calldata size matters on L2
• block.timestamp caveats on Mantle L2
• MNT as the native gas token
• mETH staking interface patterns
• LayerZero cross-chain messaging patterns
• RWA tokenization compliance hooks
• Agni Finance, Merchant Moe, FBTC, Lendle integration patterns

On-Chain Contract

MoltenRegistry deployed on Mantle Sepolia:

• Address: 0xe09155ea5efb809e7b6a16c63ef554fb8f2b4fda
• Explorer: explorer.sepolia.mantle.xyz

Local Development

git clone https://github.com/aw4e/molten.git
cd molten
npm install
cp .env.example .env   # fill in at least one AI provider key
npm run dev            # runs via tsx, no build needed

npm run build   # tsc → esbuild → dist/server.js
npm start

Stack

• Runtime: Node.js 18+ · TypeScript strict · ESM
• MCP: @modelcontextprotocol/sdk
• Chain: viem — Mantle mainnet + Sepolia clients
• AI: Anthropic · MiMo (Xiaomi) · OpenAI · Google Gemini · Tencent Hunyuan
• Validation: Zod
• Intelligence: Nansen AI API · Mantle Explorer (Blockscout) API
• Build: esbuild (single-file bundle)

License

MIT