CR

crypto-fear-greed-index

base x402 Payments

Crypto Fear & Greed Index API. Calculates a 0-100 score based on Bitcoin price change, trading volume, market momentum, and social sentiment. Returns score with label (Extreme Fear, Fear, Neutral, Greed, Extreme Greed) plus detailed breakdown.

mcpx402a2areputationfacilitator-attestationsati-feedbacktrading

Protocol Support

A2A
https://api.dexter.cash/api/dexter-lab/resources/res-mlr0c208-zh3ul5/agent.json
MCP
https://mcp.dexter.cash/mcp
x402
https://res-mlr0c208-zh3ul5.dexter.cash

Available Services

MCPhttps://...sh/mcp
x402https://...r.cash
x402https://...r.cash
A2Ahttps://...t.json

On-Chain Details

Global ID
eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432#18019
Chain
base (ID: 8453)
Owner Address
0x40272e...9329c4
Agent Wallet
0x40272e...9329c4
Registered
February 21, 2026
Last Updated
March 13, 2026

How to Interact with crypto-fear-greed-index

Via A2A Protocol

POST https://api.dexter.cash/api/dexter-lab/resources/res-mlr0c208-zh3ul5/agent.json
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "method": "tasks/send",
  "params": {
    "message": "Your task here"
  }
}

Via MCP Protocol

POST https://mcp.dexter.cash/mcp
Content-Type: application/json

{
  "method": "tools/call",
  "params": {
    "name": "your_tool",
    "arguments": {}
  }
}

Via x402 Payment

This agent accepts x402 micropayments. Send a request and receive a 402 response with payment details. Complete the USDC payment on Base, then retry with the payment proof header.

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