moltnode-mcp

MoltNode by Chord: MCP server

Read 31 blockchains and swap tokens from any AI agent. One hosted MCP server, no API key, no signup.

• Read: JSON-RPC on Ethereum, Base, Arbitrum, Solana, Monad, BNB Chain, Avalanche, Sui and 23 more, through MoltNode (automatic failover across providers).
• Trade: best-route swap quotes from Chord on Ethereum, Base, Monad, BNB Chain, Avalanche, Arbitrum, Robinhood Chain and Arc, with the unsigned transaction, the approval it needs and a simulation run from your wallet. Your agent signs with its own key; nothing is ever held for you.

https://moltnode.ag/mcp

Connect

Claude Code

claude mcp add --transport http moltnode https://moltnode.ag/mcp

Or install everything as a plugin (MoltNode + Chord MCP servers and the three skills):

/plugin install moltnode --marketplace tuantqse90/moltnode-mcp

Cursor, Windsurf, VS Code, Claude Desktop and any client that takes a URL

{
  "mcpServers": {
    "moltnode": { "type": "http", "url": "https://moltnode.ag/mcp" }
  }
}

In Claude Desktop or claude.ai you can also add it under Settings → Connectors → Add custom connector, with the URL above.

Clients that only start local commands (stdio)

{
  "mcpServers": {
    "moltnode": { "command": "npx", "args": ["-y", "github:tuantqse90/moltnode-mcp"] }
  }
}

The stdio bridge in this repo (index.mjs) forwards every call to the hosted server, so both give the same tools.

Tools

Tool	What it does
list_chains	Every chain MoltNode serves (slug, chainId, native coin, endpoint) and the ones Chord trades on
rpc_call	Any JSON-RPC method on any chain: eth_call, eth_getLogs, Solana getBalance, Sui methods, …
get_block_number	Latest block of an EVM chain
get_balance	Native-coin balance of an address on an EVM chain
chord_find_token	Token address, decimals and verified flag by symbol or name
chord_swap_quote	Best route across the chain's DEXs + unsigned tx + approval (as a ready transaction) + simulation from the taker wallet
send_raw_transaction	Broadcast a signed transaction

How an agent swaps

• chord_find_token → the addresses and decimals of the two tokens (the zero address is the native coin).
• chord_swap_quote with taker = the agent's wallet. Amounts are integer strings in the token's smallest unit (10000000 = 10 USDC).
• If the answer has approval, sign and send approval.tx first.
• Sign tx with the agent's own key.
• send_raw_transaction on the same chain.

The router enforces minAmountOut on-chain. Chord's own router answers first; another aggregator is used only when Chord has no route, and the answer says which.

Agent skills

Install with the skills CLI (Claude Code, Codex, Cursor, Gemini CLI and more): npx skills add tuantqse90/moltnode-mcp, or in Hermes: hermes skills tap add tuantqse90/moltnode-mcp. Gemini CLI extension: gemini extensions install https://github.com/tuantqse90/moltnode-mcp.

• skills/moltnode/: read 31 chains and swap through Chord end to end, with the safety rules (never handle a private key, confirm the quote before signing).
• skills/chord-charts/: candlestick chart (SVG) with volume for any token on Ethereum, Base, Monad, BNB Chain, Avalanche, Arbitrum, Robinhood Chain, Arc or Solana, from Chord's trade data (python3 scripts/chart.py --chain base --token AERO --tf 1h).
• skills/chord/: Chord's trading and market-data skill (quotes, unsigned swaps, token boards, candles, wallet PnL, smart money, holders, LP pools), marketplace edition: no key handling, no environment variables, no installer (generated from Chord's skill at nullterminal 5f07c02e; the Ask command, which needs a key, is left out). The original with Ask: https://getchord.xyz/docs/skills/chord/

skills/moltnode/SKILL.md is a SKILL.md skill (Claude Code, Codex CLI, Cursor, Gemini CLI, OpenClaw and others): when to read a chain, how to run a swap end to end, and the safety rules (never handle a private key, confirm the quote before signing). Install it by copying the folder into your agent's skills directory, e.g. ~/.claude/skills/moltnode/.

Without MCP

• Function-calling definitions (Anthropic and OpenAI shapes), with the HTTP call behind each tool: https://moltnode.ag/tool-schema.json
• Plain JSON-RPC: POST https://moltnode.ag/<chain> (e.g. https://moltnode.ag/base)
• Chain catalog: https://moltnode.ag/api/chains · OpenAPI: https://moltnode.ag/openapi.json · Brief for LLMs: https://moltnode.ag/llms.txt
• Live swap quote in the browser and full viem / web3.py code: https://moltnode.ag/trade

Chains

Read: Monad, Ethereum, Base, Arbitrum One, Optimism, Polygon, BNB Chain, Solana, Avalanche C-Chain, HyperEVM, Berachain, Abstract, Sei, Sonic, Mantle, Taiko, zkSync Era, ZetaChain, opBNB, BOB, Edge, Stable, Katana, Morph, Swellchain, 0G, TAC, X Layer, Gnosis, Fantom, Sui.

Trade (Chord): Ethereum, Base, Monad, BNB Chain, Avalanche, Arbitrum, Robinhood Chain, Arc.

Limits

Free and shared: short bursts of 60 requests, then 3 requests per second and 20,000 per day per client; answers up to 8 MB. Past a limit the tools answer with the wait time. Send a User-Agent. For heavy production traffic, run your own node.

Links

• MoltNode: https://moltnode.ag · for agents: https://moltnode.ag/agents
• Chord: https://getchord.xyz · docs: https://getchord.xyz/docs/ · Chord's own MCP (17 more tools: boards, candles, wallet PnL, smart money, LP pools): https://api.getchord.xyz/v1/mcp

License

MIT