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Air Block MCP server

Which MCP servers are Air Block's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-24

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Whose server it is
  • Registry namecom.airblockfz/coin-signalverified in the MCP registry

The registry name sits under airblockfz.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-24
  • Stateanswerschecked 2026-10-24
  • Tools6
  • Server calls itselfcoin-signal
  • Server version0.1.0
  • Protocol version2024-11-05

On 2026-10-24 the server answered initialize and tools/list without a sign-in. First answer in 131 ms.

Should an agent connect itSkip it
  • Its tools do none of the product's use cases we checked: track US and Korean stock market data on a phone; compare Dubai and Seoul property prices; check FX, commodity and inflation figures.
  • Checked on 3 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 3, the first on 2026-10-24
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 3 so far
  • What an agent can do with it0 of 3 use cases
  • Answeredmeasuring3 of the 7 daily checks it takes to print a share
  • Median first answer216 ms
  • Space in an agent's context≈ 1,287 tokensthe definitions of all its tools (6), which an agent carries on every turn
  • Tool definitionsB · 83 of 100
  • Typed results0 of 6 toolsdeclared outputSchema: results come typed, read once
  • Not saying whether it only reads or can destroy: 6 of 6

What an agent can do with it

  • cannot · track US and Korean stock market data on a phone
  • cannot · compare Dubai and Seoul property prices
  • cannot · check FX, commodity and inflation figures

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers6 tools · read 2026-10-24
  • pitch

    FREE and OPTIONAL intro — 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…

  • evaluate_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 — the verdict is the graded band of that same score…

  • scan_bottoms

    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) — your FIRST paid call opens a 6-day trial at that price; after the trial the…

  • scan_tops

    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) — your FIRST paid call opens a 6-day trial at that price; after the trial the per-call…

  • subscribe

    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 — that buys 30 days of unlimited calls and returns your X-SUB-KEY token…

  • rate

    FREE feedback tool — 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.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

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

Add it

Claude Code, in a terminal

claude mcp add --transport http airblockfz https://coin-signal.airblock2026.workers.dev/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://coin-signal.airblock2026.workers.dev/mcp as a custom connector in the settings.

Other servers listed as Air Block's
  • com.airblockfz/commodity-signalanswers, 6 toolsverified in the MCP registry
  • com.airblockfz/dubai-property-signalanswers, 5 toolsverified in the MCP registry
  • com.airblockfz/fx-signalnot asked yetverified in the MCP registry
  • com.airblockfz/inflation-signalnot asked yetverified in the MCP registry
  • com.airblockfz/seoul-apt-signalnot asked yetverified in the MCP registry
  • com.airblockfz/stock-signal-krnot asked yetverified in the MCP registry
  • com.airblockfz/stock-signal-usnot asked yetverified in the MCP registry

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.