🛡️ 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.

Quickstart (30 seconds)

No install, no API key. Point your agent at the remote endpoint:

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

Then ask one question before any buy:

scan_token("DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263")   # BONK
→ { verdict: "SAFE", safety_score: 100, sellable: true, risks: ["no red flags found"] }

`SAFE` → clear. `CAUTION` → read the risks. `DANGER` → don't buy. That's the whole loop.

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):

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= 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.

FAQ

How do I check if a Solana token is safe to buy?

Call `scan_token(mint)` — one call returns a SAFE / CAUTION / DANGER verdict covering mint/freeze

authority, Token-2022 traps, honeypot (sellability), liquidity and holder concentration, plus a

0–100 safety score.

How do I detect a honeypot before buying?

`simulate_sell(mint)` checks whether a live sell route exists — a token with no route is effectively

a honeypot even when nothing on-chain formally blocks selling.

How do I check holder concentration / whale dump risk?

`holders_breakdown(mint)` reports the largest wallets and what share of supply they control — high

concentration means one holder can crash the price on you.

How do I know if a token is a rug pull?

`rug_forecast(mint)` gives a heuristic rug probability and urgency window from real signals

(authority, Token-2022 traps, concentration, sell pressure, age). `check_authorities` and

`check_deployer` show exactly who holds power over the token.

Does it work on fresh / newly launched tokens?

Yes — it reads the mint directly on-chain (`getAccountInfo`), so you get a real verdict on a token

too new to be indexed elsewhere. `token_age` shows freshness and real trading activity.

Does it touch my wallet or sign anything?

No. Screening is read-only; `execute_safe_swap` only builds an UNSIGNED transaction for you to sign —

the server never holds keys, never signs, never sends.

Is it free? Do I need an API key?

Remote server, no install, no API key. Point your agent at the endpoint and call the tools.

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.*