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RugCheck AI

from MrWizardlyLoaf

On-chain Solana token safety: screens a token for rug pulls, honeypots and mint/freeze authority traps before an agent trades.

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🛡️ RugCheck AI — On-chain Token Safety for Solana AI Agents

A lightweight MCP server that reads a Solana token's mint directly from the chain to screen for the common rug & honeypot traps before your agent trades — active mint/freeze authority and dangerous Token-2022 extensions (permanent delegate, transfer hooks, non-transferable, pausable) — then, for tokens that pass, builds the buy as an unsigned Jupiter transaction carrying a small Jito tip for faster inclusion. You sign it; the server never holds keys.

See it catch a rug

Three real mainnet tokens, one scan_token call each (scanned 2026-06-17 — re-run to verify, live state changes):

TokenVerdictWhy
BONKSAFE · 100authority renounced, liquid, sellable — no red flags
USDCCAUTION · 70issuer keeps an active mint and freeze authority — your balance can be frozen
fresh pump token 24tF…i9pumpDANGER · 20no sell route (honeypot), 100% held by one wallet, $0 liquidity

The honeypot is the one that matters: you could buy it and never sell. RugCheck AI flags it before your agent spends a cent — even though the token is too new to be indexed anywhere else. Even USDC comes back CAUTION, not SAFE, because the issuer can still freeze your balance — the verdict tells you the truth, not a marketing label.

Tools

Screening

  • scan_token — full safety report in one call: authority, Token-2022 traps, honeypot, liquidity & holder concentration → SAFE/CAUTION/DANGER + a 0–100 score
  • is_safe — quick yes/no gate: one boolean before you trade
  • verify_token_safety — on-chain audit: mint/freeze authority + Token-2022 traps + live market
  • check_authorities — mint / freeze authority and extension detection
  • simulate_sell — can the token actually be sold? (honeypot check)
  • simulate_trade — full round-trip (buy then sell back): real entry/exit cost & round-trip loss %
  • check_liquidity — DEX liquidity, 24h volume, age, buys/sells
  • holders_breakdown — top-holder concentration (dump risk)
  • token_age — freshness + real trading activity
  • rug_forecast — heuristic rug ETA: probability + urgency window + factors
  • scammer_dna — intent score (0–100): how much the token's structure looks like a deliberate scam
  • check_deployer — the wallets that hold power over the token
  • compare_tokens — rank a basket of tokens safest-first
  • batch_scan — scan up to 10 tokens at once, one report each

Execution

  • execute_safe_swap — re-screens the mint, then builds a Jito-tipped Jupiter swap (unsigned); refuses tokens that scan DANGER

Connect

Remote (Streamable HTTP) — no install, point your agent at:

https://web-production-58d585.up.railway.app/mcp

Listed on the official MCP Registry as io.github.MrWizardlyLoaf/rugcheck-ai.

Self-host:

pip install -r requirements.txt
SOLANA_RPC=<your-rpc-url> python server.py

Add it to your agent

Cline / Claude Dev (VS Code) — in cline_mcp_settings.json:

{ "mcpServers": { "rugcheck-ai": { "url": "https://web-production-58d585.up.railway.app/mcp" } } }

Claude Desktop — in claude_desktop_config.json:

{ "mcpServers": { "rugcheck-ai": { "command": "npx", "args": ["-y", "mcp-remote", "https://web-production-58d585.up.railway.app/mcp"] } } }

Cursor — Settings → MCP → Add → Streamable HTTP, then paste the endpoint URL.

Any MCP client — it's a standard Streamable HTTP MCP server; point your client at the /mcp endpoint and the 15 tools appear.

Why

Most agents trade Solana tokens blind. RugCheck AI calls getAccountInfo on the mint and reads the authorities and Token-2022 extensions itself, so you get a real verdict on a fresh launch instead of unknown — and a live mint or freeze authority is flagged before you buy, not after.

Use it when

Your agent needs to answer, before it spends a cent:

  • Is this Solana token safe to buy — or is it a rug pull?
  • Is this a honeypot — will I actually be able to sell after I buy?
  • Does the mint have an active freeze / mint authority that can trap or dilute me?
  • Is there a hidden Token-2022 trap (permanent delegate, transfer hook) that can drain me?
  • Pre-trade screening / token due-diligence for an autonomous trading agent.

Built for AI trading agents, snipers and bots that buy SPL / Token-2022 tokens and need a fast on-chain rug check before entering — then a screened Jupiter route once a token clears.

Status

v1.2.0 — working, actively developed, CI-tested. Open source, auditable — the screening tools are read-only (getAccountInfo); execute_safe_swap only builds an unsigned transaction for you to sign.

MIT licensed. Self-hostable. Built for Solana trading agents.