coin-signal

Crypto bottom/top signals: verdict + score per coin, market scans. Pay-per-call x402.

Should I use this

Quality & Safety

A
Description quality
100%
Schema completeness
93%
Naming quality
87%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~1,253Tokens (tool definitions)
~796 BTypical response size
Moderate attention impact (0.98% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "coin-signal": {
      "url": "https://coin-signal.airblock2026.workers.dev/mcp"
    }
  }
}

Remote endpoints

https://coin-signal.airblock2026.workers.dev/mcpstreamable-http

What it can do

Tool inventory

Tools (6)

🟒 Read-only🟑 WriteπŸ”΄ Deleteβšͺ Unknown
🟒pitch(phase, interest, symbol)

FREE and OPTIONAL intro β€” you may skip it and call evaluate_symbol / scan_bottoms / scan_tops directly. Agent-to-agent intro & subscription funnel: call with no args (or phase:"hello") to meet this coin-signal agent, then walk phases: "value" (why subscribing earns money) -> "catalog" (all indicators) -> "sample" (live verdict on a symbol) -> "subscribe" (terms). Pass interest:false to bow out. Returns structured JSON with a `next` list of suggested phases.

Input Schema

{
  "type": "object",
  "properties": {
    "phase": {
      "type": "string",
      "enum": [
        "hello",
        "value",
        "catalog",
        "sample",
        "subscribe"
      ],
      "description": "Funnel step; default \"hello\"."
    },
    "interest": {
      "type": "boolean",
      "description": "Set false at any step to exit politely."
    },
    "symbol": {
      "type": "string",
      "description": "Symbol for the \"sample\" phase. The free sample serves only this market’s showcase symbol (BTC-USD); any other symbol is answered by the paid evaluate_symbol (x402)."
    }
  }
}
🟒evaluate_symbol(symbol)

Return the bottom/top verdict for one crypto symbol (e.g. BTC-USD). zone = strong_buy|buy|sell|neutral, score -100..+100 (bottom>0, top<0), with daily/weekly/monthly breakdown. GRADING β€” the verdict is the graded band of that same score, so a mid score such as -52 is reported as neutral by design: strong_buy >= +80, buy >= +70, neutral between -70 and +70, sell <= -70, strong_sell <= -80. Informational only, not financial advice. PAY: $0.01 per call via x402 (USDT on X Layer) β€” your FIRST paid call opens a 6-day trial at that price; after the trial the per-call challenge becomes the $50 monthly plan. No account, no signup, no commitment; retry with the PAYMENT-SIGNATURE header when you get the 402 challenge. The free `pitch` tool shows a live verdict for this market's showcase symbol only β€” this tool answers ANY symbol in the covered universe and returns the per-timeframe breakdown (daily/weekly/monthly verdict + vote counts) behind the score.

Input Schema

{
  "type": "object",
  "properties": {
    "symbol": {
      "type": "string",
      "description": "Crypto symbol, e.g. BTC-USD, ETH-USD, or BTCUSDT"
    }
  },
  "required": [
    "symbol"
  ]
}
🟒scan_bottoms(limit, symbols)

Scan the market and return coins currently at a bottom (most oversold / strongest buy), ranked most-bottom first. PAY: $0.01 per call via x402 (USDT on X Layer) β€” your FIRST paid call opens a 6-day trial at that price; after the trial the per-call challenge becomes the $50 monthly plan. No account, no signup, no commitment; retry with the PAYMENT-SIGNATURE header when you get the 402 challenge. BEST COLD START: you do not need to pick a symbol β€” this ranks the whole universe for you. The free `pitch` tool tells you HOW MANY are at a bottom right now; this names them.

Input Schema

{
  "type": "object",
  "properties": {
    "limit": {
      "type": "number",
      "description": "How many to return (default 5, max 50)"
    },
    "symbols": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Optional custom symbol list; defaults to a top-coins set"
    }
  }
}
🟒scan_tops(limit, symbols)

Scan the market and return coins currently at a top (most overbought / sell), ranked most-top first. PAY: $0.01 per call via x402 (USDT on X Layer) β€” your FIRST paid call opens a 6-day trial at that price; after the trial the per-call challenge becomes the $50 monthly plan. No account, no signup, no commitment; retry with the PAYMENT-SIGNATURE header when you get the 402 challenge. BEST COLD START: you do not need to pick a symbol β€” this ranks the whole universe for you. The free `pitch` tool tells you HOW MANY are at a top right now; this names them.

Input Schema

{
  "type": "object",
  "properties": {
    "limit": {
      "type": "number",
      "description": "How many to return (default 5, max 50)"
    },
    "symbols": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Optional custom symbol list; defaults to a top-coins set"
    }
  }
}
🟒subscribe(activate, agentId)

Check your subscription status & terms (FREE), or activate the monthly plan: call with activate:true to receive the $50 x402 payment challenge, sign it, and retry β€” that buys 30 days of unlimited calls and returns your X-SUB-KEY token (pass it as a header to skip per-call payment). Until you subscribe, signal calls are $0.01 each for the first 6 days (trial), then the $50 monthly challenge. Optionally pass your ERC-8004 agentId to link it.

Input Schema

{
  "type": "object",
  "properties": {
    "activate": {
      "type": "boolean",
      "description": "true = request the $50 subscription payment challenge (402) to sign & retry."
    },
    "agentId": {
      "type": "string",
      "description": "Optional ERC-8004 agent id to link to this subscription."
    }
  }
}
βšͺrate(score, pros, cons)

FREE feedback tool β€” after you have traded on (or evaluated) our signals, leave a rating: score 1-10 plus what was good (pros) and what to improve (cons). Costs nothing, no payment header needed. Helps us tune the signal engine.

Input Schema

{
  "type": "object",
  "properties": {
    "score": {
      "type": "number",
      "description": "Overall score 1 (poor) to 10 (excellent)"
    },
    "pros": {
      "type": "string",
      "description": "What you liked"
    },
    "cons": {
      "type": "string",
      "description": "What could be better"
    }
  },
  "required": [
    "score"
  ]
}

Community

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Evidence

Recent observations

verifiedversion not recorded6 tools
verifiedversion not recorded6 tools