SE

SentimentAlpha.ai

base x402 Payments

Real-time X/Twitter sentiment intelligence via Grok API + x_search. Automate Social Arbitrage: spot cultural trend shifts, narrative velocity, and contrarian signals BEFORE Wall Street. Returns structured JSON with sentiment scores, narrative velocity, top narratives, KOL positions, and contrarian signals. Use cases: social arbitrage bots, trading agents, brand monitoring, competitive intelligence, crisis detection, alternative data sentiment. Covers crypto, stocks, macro, brands, politics, culture. Pay-per-query 0.005 USDC on Base via x402. MCP-native.

x402mcpa2areputationcrypto-economictradingdata

Protocol Support

A2A
https://sentimentalpha.ai/.well-known/agent.json
MCP
https://sentimentalpha.ai/v1/mcp-manifest
x402
https://sentimentalpha.ai/v1/narrative-alpha

Available Services

x402https://...-alpha
MCPhttps://...nifest
A2Ahttps://...t.json

On-Chain Details

Global ID
eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432#38322
Chain
base (ID: 8453)
Owner Address
0xfc4750...15352f
Agent Wallet
0x1f08fb...0b995e
Registered
March 31, 2026
Last Updated
March 31, 2026

How to Interact with SentimentAlpha.ai

Via A2A Protocol

POST https://sentimentalpha.ai/.well-known/agent.json
Content-Type: application/json

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

Via MCP Protocol

POST https://sentimentalpha.ai/v1/mcp-manifest
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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