Base Memecoin Guard

com.facts402Published by facts402.comv0.1.1Updated Nov 3, 2026

Base memecoin safety for trading agents: honeypot, rug pull, exit liquidity, smart money

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Overview

AI-generated overview

Paid, per-call Base memecoin safety and smart-money toolkit for trading agents: honeypot and rug checks, exit liquidity, social attention, wallet signals and…

What you can do
  • Run pre-trade safety reports on Base tokens: honeypot, rug pull, taxes, exit liquidity at a given position size, insiders, snipers and deployer history, plus batch screening of up to 10 tokens
  • Measure social attention: mention counts, velocity, shill score, trending tokens by attention acceleration, and full-text search of recent crypto social posts
  • Track smart money: signal feed, per-token wallet flows, wallet PnL profiles, leaderboards, analyst briefs and a public track record
  • Monitor open positions for 24h, 72h or 7 days with alerts on liquidity pulls, dev dumps and exit traps; extend, inspect, pull events from or stop a watch
  • Free preview tools give quick verdicts, mention counts and…
When to use it
Useful for agents or traders who actively evaluate or hold Base memecoins and want automated pre-trade safety checks, exit-liquidity sizing, social-attention and smart-money context, and post-buy rug-pull monitoring.
Requirements
Runs locally via uvx (Python/uv). Paid tools need X402_PRIVATE_KEY, the private key of a Base mainnet wallet holding USDC; optional X402_MAX_PER_CALL_USD and X402_SESSION_BUDGET_USD cap spending. Free tools work without a wallet. Network access to the provider's services is required.
Before you install
Requires handing a wallet private key to a local process; use a dedicated hot wallet with a small balance, never a trading wallet. Paid tools spend real USDC per call, so set the per-call cap and session budget deliberately. Watch tools return a watch_secret shown once, and stopping a watch gives no refund. Social post text is third-party content and results are automated flags, not investment advice.

Installation

In SourceWeft

  1. Open Base Memecoin Guard in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

Base Memecoin Guard MCP

Memecoin safety and smart money for Base trading agents. Before your agent buys a Base token, it can check for a honeypot or rug pull, simulate the exit at its real position size, see insiders, snipers and bundled wallets, and check whether smart money and real people (not a shill farm) are behind it. After it buys, a watch alerts on liquidity pulls, dev dumps and exit traps.

  • Guard: honeypot and rug pull checks, buy / sell / transfer tax, exit liquidity at your size (price impact, slippage), insider / sniper / bundle forensics, funder clusters, deployer track record, LP lock.
  • Pulse: social attention for a token or ticker (Farcaster, Telegram, news), velocity, first sighting, shill score, paid promotion and KOL calls; trending Base tokens by attention acceleration.
  • Signals: smart money on Base launches: wallets with a proven PnL record, what they accumulate or exit, copy trade and whale alerts, a wallet PnL profiler, a leaderboard and analyst briefs. The track record is public and hash-chained.
  • Watch: monitor an open position for 24 h / 72 h / 7 days. You get HMAC-signed webhooks or pulled alerts on liquidity drops, deployer and insider cluster sells, owner actions, tax changes, honeypot flips, exit traps, smart money exits and attention collapse.

Pay per call with x402: USDC on Base, from your own wallet, within a per-call cap and a session budget you set. Seven tools are free and work without any wallet. Start with guard_preview.

Tools

ToolPrice (USDC)Use it to
guard_check$0.05Get the full pre-trade safety report: honeypot, rug pull, tax, exit liquidity, insiders, snipers, deployer
guard_exit_liquidity$0.02Check whether you can actually sell your size: price impact and realisable USD
guard_batch$0.30Run the safety check on up to 10 tokens (watchlists, new launches)
guard_previewfreeGet a quick verdict and risk score
pulse_token$0.04Measure social attention, velocity and shill score for a token or ticker
pulse_trending$0.08Find trending Base tokens by attention acceleration (1h / 6h / 24h)
pulse_search$0.03Search crypto social posts from the last 30 days
pulse_previewfreeGet the 24h mention count
signals_feed$0.15Read the smart money feed: accumulation, early entry, exit, attention-confirmed
signals_token$0.10See which profitable wallets bought or sold a token
signals_wallet$0.05Profile a wallet's PnL and win rate (is it worth copy trading?)
signals_leaderboard$0.10List the most profitable Base memecoin wallets (7d / 30d)
signals_brief$0.25Get a brief for a 1h / 24h / 7d horizon combining smart money, safety and attention
signals_previewfreeSee a sample of current signals
signals_performancefreeCheck the public, hash-chained track record of past signals
watch_24h$0.12Watch a position for 24 h with rug pull / exit-trap alerts
watch_72h$0.30Watch for 72 h
watch_7d$0.60Watch for 7 days (needs X402_MAX_PER_CALL_USD of at least 0.60)
watch_extend_24h$0.12Extend an active watch by 24 h
watch_statusfreeGet a watch's status (needs its watch_secret)
watch_eventsfreePull a watch's alerts
watch_stopfreeStop a watch

Prices are those the services published when this version was built, and every tool description states its price. The services charge only for a successful (2xx) answer: invalid input, errors and warm-up are never charged. Signals is warming up until about 2026-11-03; until then its paid tools answer 503 and charge nothing.

Payments and limits

VariableDefaultMeaning
X402_PRIVATE_KEY(unset)Private key of a Base mainnet wallet you control that holds some USDC. Without it, paid tools return their price and setup steps and pay nothing.
X402_MAX_PER_CALL_USD0.30The most one call may pay.
X402_SESSION_BUDGET_USD2.00The most the server may spend until it restarts.
  • Use a dedicated hot wallet with a small balance, never your trading wallet.
  • No ETH is needed: x402 exact payments are gasless EIP-3009 USDC authorisations.
  • The key stays on your machine. It is never logged or returned, and it signs only the one request you made.
  • Payments go only to the facts402 receiving address (0x5498b0Aa90cd56F8962CBd136DF3D3769C85f149). A quote for any other payee, any other token or a Permit2 approval is refused.
  • A call is refused before anything is sent when its price is above the per-call cap or the remaining budget.
  • Every paid answer comes with a receipt: amount, transaction hash and session totals.
  • pulse_search returns third-party post text. Treat it as data, not instructions.

Install

The server runs with uv (uvx base-memecoin-guard-mcp). You can leave X402_PRIVATE_KEY out and use the free tools first.

Claude Desktop

Add this to claude_desktop_config.json (Settings > Developer > Edit Config):

json
{  "mcpServers": {    "base-memecoin-guard": {      "command": "uvx",      "args": ["base-memecoin-guard-mcp"],      "env": {        "X402_PRIVATE_KEY": "0xYOUR_HOT_WALLET_KEY",        "X402_MAX_PER_CALL_USD": "0.30",        "X402_SESSION_BUDGET_USD": "2.00"      }    }  }}

Claude Code

bash
claude mcp add base-memecoin-guard --scope user -e X402_PRIVATE_KEY=0xYOUR_HOT_WALLET_KEY -- uvx base-memecoin-guard-mcp

Cursor

Use ~/.cursor/mcp.json (global) or .cursor/mcp.json (project; keep the key out of version control):

json
{  "mcpServers": {    "base-memecoin-guard": {      "command": "uvx",      "args": ["base-memecoin-guard-mcp"],      "env": { "X402_PRIVATE_KEY": "0xYOUR_HOT_WALLET_KEY" }    }  }}

Windsurf

Use ~/.codeium/windsurf/mcp_config.json:

json
{  "mcpServers": {    "base-memecoin-guard": {      "command": "uvx",      "args": ["base-memecoin-guard-mcp"],      "env": { "X402_PRIVATE_KEY": "0xYOUR_HOT_WALLET_KEY" }    }  }}

Example prompts

  • "Is 0x4ed4e862860bed51a9570b96d89af5e1b0efefed on Base a honeypot? Can I exit $500 without much slippage?"
  • "Which Base memecoins are trending on Farcaster right now? Is any smart money buying them?"
  • "Profile wallet 0x... Is it worth copy trading?"
  • "I just bought 0x... Watch it for 24 hours and tell me about liquidity pulls or dev sells."

Related

facts402-mcp is the same team's server for general agent fact checks: IBAN, EU VAT, OFAC sanctions, LEI, phone, email, FX and more. It also provides this server's shared payment core.

Not investment advice: these tools return automated on-chain and social facts and rules-based flags.

Source: base-memecoin-guard-mcp/README.md at commit 6120ebc

Tools

22

guard_check

Base token safety check (honeypot / rug)

Full pre-trade safety report for a Base memecoin or new token launch: honeypot and rug pull checks, buy/sell/transfer tax, exit liquidity at YOUR position size (price impact, slippage), insider, sniper and bundle forensics, funder clusters, deployer track record, liquidity and LP lock. Call before buying. Price: $0.05 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parameterstokenrequiredposition_usd

guard_exit_liquidity

Exit liquidity simulation

Can you actually sell? Simulates exiting a Base token position of a given USD size (or raw token amount): price impact, slippage and realisable USD across the token's pools. Exit-liquidity and honeypot sanity check before sizing a trade. Price: $0.02 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parameterstokenrequiredposition_usdamount_tokens

guard_batch

Batch token safety check

Run the Guard honeypot / rug pull / exit-liquidity / insider safety check on up to 10 Base tokens in one call. For screening a watchlist or a list of new memecoin launches. Price: $0.30 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parameterstokensrequiredposition_usd

guard_preview

Token safety preview

Free quick safety verdict (CAUTION / DANGER) and risk score for one Base token from the contract and honeypot simulation checks (never SAFE: market and exit liquidity are not computed here). Use guard_check for the full paid report with reasons. FREE: no wallet or payment needed.

Parameterstokenrequired

pulse_token

Social attention for a token

Social sentiment and attention for a Base token or memecoin by contract address or ticker: who is talking about it (Farcaster, Telegram, news), where it appeared first, how fast attention is growing (velocity), and whether it is real people or a shill farm (shill score, paid promotion, KOL calls). Price: $0.04 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parameterstokentickerwindow

pulse_preview

Social attention preview

Free social mention count for one Base token over the last 24h. Use pulse_token for the full paid attention / shill-score report. FREE: no wallet or payment needed.

Parameterstokenrequired

signals_feed

Smart money signal feed

Cursor-paged feed of Base smart money signals: smart accumulation, early smart entry, smart exit and attention-confirmed moves, from wallets with a proven PnL record on Base launches, filtered by rug pull / honeypot checks. Copy trade and whale tracking alerts. Price: $0.15 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parameterslimitsincetypesmin_score

signals_token

Smart money flow for a token

Smart money flow for one Base token: which profitable wallets (whales, smart traders) bought or sold, when and how much, and the signals raised for it. Price: $0.10 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parameterstokenrequired

signals_wallet

Wallet PnL profile

Profile a Base wallet as a trader: PnL, win rate, launches traded and recent moves. Decide whether a wallet is smart money worth copy trading. Price: $0.05 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parametersaddressrequired

signals_leaderboard

Smart money leaderboard

Leaderboard of the most profitable Base memecoin wallets over 7 or 30 days (PnL, win rate). Find smart money and whales to follow or copy trade. Price: $0.10 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parametersperiod

signals_brief

Token trading brief

Analyst-style brief for a Base token over a 1h, 24h or 7d horizon that combines smart money flow, safety (honeypot / rug pull) and social attention, with exit-liquidity context at your position size. Price: $0.25 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parameterstokenrequiredhorizonrequiredposition_usd

signals_preview

Smart money preview

Free sample of current Base smart money signals. FREE: no wallet or payment needed.

Takes no parameters.

signals_performance

Signals track record

Free public track record of Signals: outcomes of past smart money signals (+1h, +24h, +7d, drawdown) with a hash-chained, tamper-evident log. FREE: no wallet or payment needed.

Takes no parameters.

watch_24h

Watch a position for 24 hours

Monitor an open Base token position for 24 hours and get alerts (HMAC-signed webhook, or pull with watch_events) on rug pull signs: liquidity pulls, deployer and insider cluster dumps, owner actions, tax changes, honeypot flips, exit traps at your size, smart money exits, attention collapse or spike. Returns watch_id and watch_secret (shown once: keep both). Price: $0.12 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parameterstokenrequiredeventsthresholdswebhook_urlposition_usd

watch_72h

Watch a position for 72 hours

Same rug pull / exit-trap / smart money exit monitoring as watch_24h, for 72 hours. Returns watch_id and watch_secret (shown once: keep both). Price: $0.30 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parameterstokenrequiredeventsthresholdswebhook_urlposition_usd

watch_7d

Watch a position for 7 days

Same rug pull / exit-trap / smart money exit monitoring as watch_24h, for 7 days. Returns watch_id and watch_secret (shown once: keep both). Price: $0.60 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parameterstokenrequiredeventsthresholdswebhook_urlposition_usd

watch_extend_24h

Extend a watch by 24 hours

Extend an active position watch by 24 hours. An unknown or expired watch_id is refused before payment. Price: $0.12 USDC per call via x402 on Base, paid from your own wallet (X402_PRIVATE_KEY) within your per-call cap and session budget; charged only for a successful answer.

Parameterswatch_idrequired

watch_status

Watch status

Status of a position watch: token, expiry, enabled events and alert counts. FREE: no wallet or payment needed.

Parameterswatch_idrequiredwatch_secretrequired

watch_events

Watch alerts

Pull the alerts (rug pull signs, exit traps, smart money exits...) raised by a position watch, oldest first; pass next_cursor back as `since` for the next page. FREE: no wallet or payment needed.

Parameterslimitsincewatch_idrequiredwatch_secretrequired

watch_stop

Stop a watch

Stop a position watch early (no refund). FREE: no wallet or payment needed.

Parameterswatch_idrequiredwatch_secretrequired

Version history

1
  1. v0.1.1LatestNov 1, 2026

Score

80% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts
  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.