Crypto Knowledge

The on-chain brain for autonomous AI agents. An MCP server that lets agents perform complex crypto operations — cross-chain routing, contract decoding, portfolio & allowance management, gas/profit estimation and anti-rug security checks — safely and deterministically.

Keystore-free by design. The server never holds private keys and never signs. Every write action returns an unsigned, ready-to-sign transaction; the agent signs it with its own wallet. The server is multi-tenant and stateless — bring your own address, get back data + unsigned transactions.

Tools (11)

Tool	What it does
route	Best cross-chain route between any chains/tokens (e.g. CRO → SOL). Queries LiFi + deBridge in parallel, compares output, returns the best route plus alternatives, each with a ready-to-sign transaction.
pumpfun	Direct on-chain pump.fun reads: live bonding-curve reserves, price, graduation progress, market cap, and resolved IPFS metadata.
profitability	EIP-1559 multi-chain gas estimation + net-profit verdict after gas & slippage (arbitrage guard).
abi	Fetch any verified EVM contract's ABI (Etherscan V2 / Sourcify), follow EIP-1967 proxies, and tell the agent exactly which parameters each function needs. Decode/encode calldata — decode_calldata even works on unverified contracts via a 4byte-directory selector lookup. Cached.
portfolio	Multi-chain balances (native + ERC-20 + SPL) and ERC-20 allowance management (check / approve / revoke) returning unsigned transactions.
security	Anti-rug scan via GoPlus + honeypot.is (EVM and Solana): honeypot/non-transferable, taxes, liquidity locks, mint/freeze/blacklist/pause powers, holder concentration → 0-100 risk score with red flags.
mev_protection	Private-RPC guidance (Flashbots Protect, MEV Blocker) + per-chain sandwich risk so the agent broadcasts safely.
whale_watch	Recent large ERC-20 transfers ("whale moves") for a token over a block window, decoded + sorted.
solana_swap	Quote & build same-chain Solana swaps via Jupiter (e.g. SOL→USDC, buy a graduated pump token) — returns a serialized unsigned transaction.
simulate	Dry-run an EVM transaction (eth_call) before signing and decode the revert reason (Error/Panic/custom) — never burn gas on a doomed tx.
catalog	Discovery: lists every tool, supported chain (id/native asset) and provider mode so an agent can self-configure.

Supported chains

Ethereum, Base, Arbitrum, Optimism, Polygon, Cronos, ApeChain, BNB Smart Chain, Avalanche, Solana (10). Chain-agnostic by design — adding a chain is a single registry entry (src/registry/chains.ts).

Quick start

npm install
cp .env.example .env   # optional keys — everything degrades to public RPC without them
npm test               # 31 deterministic unit tests
npm run dev            # run the MCP server over stdio

Use it from an MCP client (e.g. Claude Code)

{
  "mcpServers": {
    "crypto-knowledge": {
      "command": "npx",
      "args": ["tsx", "/absolute/path/to/Crypto-Knowledge/src/index.ts"]
    }
  }
}

Provider modes (per call)

The caller chooses how RPC/data is sourced:

• open — public RPCs only. Free, but limited data (e.g. no ERC-20 auto-discovery) and lower rate limits.
• own_key ⭐ recommended — pass your own free heliusKey / alchemyKey. Best performance, your quota. Keys are used transiently and never stored or logged.
• tool — use the operator's keys (never exposed). Reserved for NFT-holders / paid tier when access gating is enabled.

Get a free key at helius.dev (Solana) and alchemy.com (EVM). The tool will nudge you when you're on a degraded public RPC.

Access & monetization (hosted mode)

When ACCESS_GATING_ENABLED=true (off by default for local stdio use):

• Holder — owns the configured gating NFT (on-chain verified) → free, higher limits, may use the tool's keys.
• Paid — $0.10 per request via x402.
• Free — public-RPC tier with conservative limits.

Architecture

agent ──▶ MCP tools (6 modules)
            └─ core: RPC pool · retry/backoff · canonical errors · provider resolver
            └─ access: sliding-window rate limit · NFT gate
          returns ONLY unsigned tx + data → agent signs locally

See ARCHITECTURE.md for the full design, JSON I/O specs and R&D roadmap.

Security

• No private keys, ever. Read + build-unsigned-tx only.
• Operator keys are server-side only and never echoed to callers.
• Caller-supplied keys are transient (never persisted/logged).

License

MIT