Kerdos X402 MCP

Official

by Singlishman · JavaScript

Crypto market intelligence MCP — pay-per-tool-call in USDC on Base via the x402 protocol.

Crypto market intelligence with pay-per-call pricing in USDC on Base blockchain.

kerdos-x402-mcp

MCP server exposing Kerdos Market Intelligence APIs as tools for AI trading agents. Pay-per-call in USDC on Base mainnet via the x402 protocol. No API keys, no subscriptions, no signup.

What it does

11 tools for crypto market intelligence:

Tool	Price	What it returns
`get_market_overview`	$0.01	One-call snapshot: BTC/ETH/SOL/GOLD prices + RSI + regime + funding + Fear & Greed
`get_sentiment`	$0.05	Composite multi-analyst sentiment, ST + LT direction, contrarian flag
`get_regime`	$0.02	BTC/ETH bull/bear regime (EMA50 1h) with composite confidence
`get_funding`	$0.01	Hyperliquid perpetual funding rates + OI for BTC/ETH
`get_gold_signal`	$0.03	XAU direction, confidence, RSI, 4h fib (HIP-3 gold perp)
`get_whale_alerts`	$0.01	Whale wallet stance + on-chain capital flows
`get_liquidations`	$0.02	OI velocity + cascade risk + large-trade ($50K+) tracking
`get_cvd`	$0.02	Cumulative Volume Delta — taker buy/sell divergence on BTC/ETH
`get_cascade_risk`	$0.02	Decision-ready cascade classifier (NONE/LOW/MODERATE/ELEVATED/HIGH) per coin
`get_funding_chaos`	$0.03	Sub-12h funding sign-flip regime index for BTC/ETH/SOL
`get_composite_signal`	$0.06	Bundled market state (regime + cascade + sentiment) at a discount

Setup

bash

npm install -g kerdos-x402-mcp

Or run via npx (no install):

bash

npx kerdos-x402-mcp

Required env

bash

EVM_PRIVATE_KEY=0x...   # YOUR private key (used to sign payment authorizations)

The MCP server uses your key only to authorize USDC transfers to the Kerdos receiver wallet on Base. Each tool call costs $0.01–$0.06.

Optional env

bash

KERDOS_X402_BASE_URL=https://nonvisceral-eloisa-mousily.ngrok-free.dev

Claude Desktop config

Add to claude_desktop_config.json:

json

{
  "mcpServers": {
    "kerdos": {
      "command": "npx",
      "args": ["kerdos-x402-mcp"],
      "env": {
        "EVM_PRIVATE_KEY": "0x..."
      }
    }
  }
}

How payment works

MCP client calls a tool (e.g. get_market_overview).
MCP server requests https://...kerdos.../api/market-overview.
Kerdos server returns 402 Payment Required with a payment challenge.
@x402/fetch signs a USDC transferWithAuthorization using your key.
Server verifies the signature, settles via CDP facilitator on Base, returns the JSON response.

End-to-end latency: ~1-2 seconds per call. No interactive approval — payment happens transparently.

Provider

Kerdos Market Intelligence — autonomous trading agent fleet on Hyperliquid + Base. Same signals power Kerdos's own bots' entry decisions.

Discovery: https://nonvisceral-eloisa-mousily.ngrok-free.dev/.well-known/x402
CDP Bazaar listing: 11 endpoints
402Index: 12 entries
Verified domain (402Index)

License

MIT — fork freely.

Issues

GitHub issues on this repo for MCP-side bugs. For endpoint downtime, check https://nonvisceral-eloisa-mousily.ngrok-free.dev/health.

Install

Configuration

Environment variables

EVM_PRIVATE_KEYrequiredsecret

User-supplied EVM private key on Base mainnet. Used solely to sign USDC `transferWithAuthorization` payment payloads via x402. Each tool call costs $0.01-$0.06 USDC.

KERDOS_X402_BASE_URLdefault https://nonvisceral-eloisa-mousily.ngrok-free.dev

Optional override of the Kerdos x402 endpoint base URL.

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "kerdos-x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "kerdos-x402-mcp@0.1.0"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "<YOUR_EVM_PRIVATE_KEY>",
        "KERDOS_X402_BASE_URL": "https://nonvisceral-eloisa-mousily.ngrok-free.dev"
      }
    }
  }
}