Is Kraken Crypto Signals free?

Yes, Kraken Crypto Signals is free to use.

How do I install Kraken Crypto Signals?

Kraken Crypto Signals is a local plugin. Install it using npm package: kraken-signals-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

What credentials does Kraken Crypto Signals need?

Kraken Crypto Signals requires the following credentials or environment variables: EVM_PRIVATE_KEY, RESOURCE_SERVER_URL. You can find setup instructions on the server detail page.

What AI apps work with Kraken Crypto Signals?

Kraken Crypto Signals uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Kraken Crypto Signals MCP Server

by Nikoble1926

Developer ToolsUse Caution3.8MCP RegistryLocal

Free

Server data from the Official MCP Registry

Kraken crypto signals via x402: free preview + paid USDC-on-Base signals, regime & indicators

About

Kraken crypto signals via x402: free preview + paid USDC-on-Base signals, regime & indicators

Security Report

3.8

Use Caution3.8High Risk

The MCP server implements a legitimate x402 payment-gated crypto signals API with proper authentication via blockchain payments and ECDSA signing. However, there are security concerns around environment variable handling, incomplete extra_endpoints.py code, and insufficient input validation on user-supplied parameters that warrant attention. The permissions align with the service's purpose but some potential for data access should be monitored. Supply chain analysis found 22 known vulnerabilities in dependencies (2 critical, 17 high severity). Package verification found 1 issue.

5 files analyzed · 32 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

HTTP Network Access

Connects to external APIs or services over the internet.

network_websocket

Check that this permission is expected for this type of plugin.

system_info

Check that this permission is expected for this type of plugin.

What You'll Need

Set these up before or after installing:

Optional. Base wallet private key (0x...) for a low-balance hot wallet holding a little USDC. Required only for the paid tools; the free get_signal_preview tool works without it. Never use your main wallet.Required

Environment variable: EVM_PRIVATE_KEY

Optional. Override the signals API base URL. Defaults to https://signals.nsgoods.org.Optional

Environment variable: RESOURCE_SERVER_URL

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-nikoble1926-kraken-signals-mcp": {
      "env": {
        "EVM_PRIVATE_KEY": "your-evm-private-key-here",
        "RESOURCE_SERVER_URL": "your-resource-server-url-here"
      },
      "args": [
        "-y",
        "kraken-signals-mcp"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

Kraken Crypto Signals — x402 pay-per-call API

Pay-per-call crypto market-state data for AI agents, served over the x402 protocol on Base mainnet. An agent calls an endpoint, receives HTTP 402, pays USDC, and gets machine-readable, ECDSA-signed data — no accounts, no API keys.

Live: https://signals.nsgoods.org · Manifest: https://signals.nsgoods.org/.well-known/x402 · OpenAPI: https://signals.nsgoods.org/openapi.json On x402scan: https://www.x402scan.com/server/bcc5723d-17eb-40f2-9e23-c1f2e3387dd2 · Demo (40s): https://youtu.be/k2WhYqK1YvQ

Why this API

Signed & verifiable — every response carries signed_by + signature; recover against the published signer to prove it is authentic and untampered.
Provable track-record — a public commit-reveal hash chain (/track-record) lets anyone audit past calls; /history reveals older snapshots with their hashes.
Proof of edge — /backtest replays the live strategy over recent history and returns win-rate + average forward return, so an agent can measure the edge before subscribing.
No keys, no signup, free preview — try /signals/preview for free, then pay per call in USDC on Base.

Quickstart (call & pay in ~5 minutes)

A runnable demo agent lives in examples/quickstart. It calls the FREE /signals/preview endpoint and then prints the decoded x402 402 Payment Required challenge for a paid endpoint — no funds needed. Add a low-balance Base hot-wallet key and the same call auto-pays in USDC on Base.

cd examples/quickstart
npm install
cp .env.example .env      # leave WALLET_PRIVATE_KEY empty for the no-funds demo
node agent.js

Paid endpoints: /indicators ($0.005), /signals ($0.01), /regime/changed ($0.02), /history ($0.05), /signals/top ($0.10), /backtest ($0.25) — USDC on Base mainnet (eip155:8453), payTo 0xc87a06DEE4c0E85912296002617120BBfd5EF990.

Build an agent on this API

Starter template (free preview → paid pay-per-call over x402): https://github.com/Nikoble1926/agent-starter-x402

Paid endpoints

Path	Cost (USDC)	Description
`GET /signals?pair=BTC/USD`	$0.01	Trading signal for one pair (BUY/SELL/HOLD + confidence)
`GET /signals/top`	$0.10	Market scan — strongest BUY/SELL signals across major pairs
`GET /history?limit=20`	$0.05	Revealed historical signal snapshots (commit-reveal) + verifiable hashes
`GET /regime/changed?since=RISK_ON`	$0.02	Market regime (RISK_ON/RISK_OFF) + whether it changed since you last looked
`GET /backtest?pair=BTC/USD`	$0.25	Walk-forward replay: win-rate + avg forward return per BUY/SELL signal

Free endpoints

Path	Description
`GET /signals/preview`	Free sample — BTC/USD direction only
`GET /track-record`	Public tamper-evident hash chain
`GET /.well-known/x402` · `GET /openapi.json` · `GET /health` · `GET /`	Manifest, OpenAPI spec, health, landing page

Any active Kraken */USD spot pair works via ?pair= (e.g. ETH/USD, SOL/USD, XRP/USD, DOGE/USD).

Discovery

Listed on x402scan and the x402 Bazaar (CDP Facilitator) — agents can find this API via Bazaar semantic search / merchant lookup for payTo 0xc87a06DEE4c0E85912296002617120BBfd5EF990. Settlement runs through the Coinbase CDP Facilitator.

Use with Claude Desktop / Cursor (MCP)

The mcp/ bridge exposes every endpoint as a tool; paid tools settle USDC on Base automatically per call, and get_signal_preview is free. See mcp/ for setup.

Run

pip install -r requirements.txt
cp .env.example .env   # set your PUBLIC Base receiving address
python signals_api.py

Security

Only your public Base receiving address goes in .env. Never put a private key or seed phrase in this repo.

Disclaimer

Educational signals from a multi-timeframe strategy. Not financial advice. /backtest is a recent-window walk-forward replay, not a long-horizon study; past performance does not predict future results.

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Kraken Crypto Signals MCP Server

About

Security Report

Findings (32)Action required

Permissions Required

What You'll Need

How to Install

Documentation

Kraken Crypto Signals — x402 pay-per-call API

Why this API

Quickstart (call & pay in ~5 minutes)

Build an agent on this API

Paid endpoints

Free endpoints

Discovery

Use with Claude Desktop / Cursor (MCP)

Run

Security

Disclaimer

Reviews

No reviews yet

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