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JestSprout Meme Coin & Solana Rug-Check Tools

app.vercel.jestsprout/jestsproutjestsprout.vercel.appstreamable-httpv1.1.0Scanned

Free Solana token rug checks, memecoin ticker checks, trends, name ideas, logos and vibe scores.

8 tools: 8 change things.

Tools: 0 delete, 0 irreversible, 8 write, 0 read.
  • Reads private data · 0
  • Reads text others write · 7
  • Can send data out · 0
  • 1 finding

Anlyon alternative

8 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

8 tools

Changes things 8Claude Code: ask
  • generate_coin_conceptTurn a theme into a meme coin name, ticker, description, and hosted logo.No findings

    Why it is in this group

    • The name "generate_coin_concept" says "generate": a word for a change.
    Description, as the server wrote it
    Turn a theme into a meme coin name, ticker, description, and hosted logo.
  • memecoin_logo_generatorFREE, no API key (about 100 calls/day).Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    FREE, no API key (about 100 calls/day). Returns a stable hosted URL for a 512x512 mascot-style coin logo (SVG) made from a ticker, name and theme. Styles: sticker, neon, retro, comic. The same inputs always give the same image.

    Annotations the server declares

    • title: Meme coin logo / mascot image generator
    • readOnlyHint: true
    • openWorldHint: true
    • idempotentHint: true
  • memecoin_name_ticker_ideasFREE, no API key (about 100 calls/day).Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    FREE, no API key (about 100 calls/day). Generates up to 10 meme coin name, ticker and lore ideas for a theme. Each comes with a memeability score and a ready-made logo image URL.

    Annotations the server declares

    • title: Meme coin name & ticker idea generator
    • readOnlyHint: true
    • openWorldHint: true
    • idempotentHint: true
  • memecoin_ticker_availability_checkFREE, no API key (about 100 calls/day).Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    FREE, no API key (about 100 calls/day). Checks whether a meme coin ticker symbol or name is already used on Solana (DexScreener-indexed tokens, pump.fun included) or in the JestSprout gallery, before you launch. Lists matching mints with liquidity and creation date.

    Annotations the server declares

    • title: Meme coin ticker / name availability check
    • readOnlyHint: true
    • openWorldHint: true
    • idempotentHint: true
  • memecoin_vibe_check_scoreFREE, no API key (about 100 calls/day).Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    FREE, no API key (about 100 calls/day). Scores how memeable a coin name and ticker are (0-100), with reasons and tips. A fun heuristic, not a price prediction.

    Annotations the server declares

    • title: Meme coin vibe check / memeability score
    • readOnlyHint: true
    • openWorldHint: true
    • idempotentHint: true
  • refuel_station_checkinFREE.Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    FREE. Daily check-in for bots: once per UTC day per key/IP it adds +50 bonus free calls (issues a free API key if you have none), signs the public guestbook with your streak, and returns a fuel pack: trending memecoin themes, newest gallery coins, rug checks of hot new pump.fun coins, a random coin idea and pointers to all free tools.

    Annotations the server declares

    • title: Bot Refuel Station daily check-in (+50 free calls)
    • readOnlyHint: false
    • openWorldHint: true
    • idempotentHint: false
  • solana_token_rug_checkFREE, no API key (about 100 calls/day).Reads text others write1 finding

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.

    Findings

    • Warn

      The input schema at properties.mint.description contains a 44-character base64 string.

      Matched text

      inputSchema.properties.mint.description: "...ress (base58), e.g. 9uSa1csCpzfm76Ms2sPnwWn78XUKJE86ND1VobqHpump"

      What this check looks for
    Description, as the server wrote it
    FREE, no API key (about 100 calls/day). Rug-pull and safety check for any Solana SPL or Token-2022 mint (pump.fun memecoins included). Shows whether mint authority and freeze authority are revoked, supply and decimals, top-10 holder concentration, token age, metadata mutability, liquidity, and pump.fun bonding-curve or graduated status. Returns a 0-100 risk score with plain-English red flags. Not financial advice.

    Annotations the server declares

    • title: Solana token rug check / safety scan
    • readOnlyHint: true
    • openWorldHint: true
    • idempotentHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write7
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnsolana_token_rug_check

    The input schema at properties.mint.description contains a 44-character base64 string.

    Matched text

    inputSchema.properties.mint.description: "...ress (base58), e.g. 9uSa1csCpzfm76Ms2sPnwWn78XUKJE86ND1VobqHpump"

    What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http jestsprout https://jestsprout.vercel.app/mcp
claude mcp add --transport http jestsprout https://jestsprout.vercel.app/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__jestsprout__solana_token_rug_check",
      "mcp__jestsprout__memecoin_ticker_availability_check",
      "mcp__jestsprout__trending_memecoin_narratives",
      "mcp__jestsprout__memecoin_name_ticker_ideas",
      "mcp__jestsprout__memecoin_logo_generator",
      "mcp__jestsprout__memecoin_vibe_check_score",
      "mcp__jestsprout__refuel_station_checkin",
      "mcp__jestsprout__generate_coin_concept"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as jestsprout. Review it before you use it.

Capability tags behind 7 rules
  • mcp__jestsprout__solana_token_rug_check untrusted-input
  • mcp__jestsprout__memecoin_ticker_availability_check untrusted-input
  • mcp__jestsprout__trending_memecoin_narratives untrusted-input
  • mcp__jestsprout__memecoin_name_ticker_ideas untrusted-input
  • mcp__jestsprout__memecoin_logo_generator untrusted-input
  • mcp__jestsprout__memecoin_vibe_check_score untrusted-input
  • mcp__jestsprout__refuel_station_checkin untrusted-input

Pin

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/app.vercel.jestsprout/jestsprout/verify?hash=c6701fc19fbec750e2822f1877489ca99da345eed5f0c26d93792ce761207866" | jq -e '.changed == false'

Pinned hash c6701fc19fbe, from Oct 22, 2026, 18:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/app.vercel.jestsprout/jestsprout/changes.xml

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Badge

anlyon.dev badge for app.vercel.jestsprout/jestsprout
[![anlyon.dev](https://anlyon.dev/badge/app.vercel.jestsprout/jestsprout.svg)](https://anlyon.dev/servers/app.vercel.jestsprout/jestsprout)

Source: MCP Registry. Synced Oct 22, 2026, 18:17 UTC.