"Spring Boot" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Polymarket and Kalshi prediction-market sentiment from X (Twitter), scored by Grok. Free daily scores for tracked markets; live scores and briefs with Polymarket + Kalshi odds for any market question, paid per call in USDC via x402.
Read-only tools for agents: everything a Solana or Robinhood Chain wallet can get back (rent, wrapped SOL, LP fees, dead positions, failed deploys), whether a token is safe, when it unlocks, which protocol upgrades are live, and what a token operation costs. Every answer names the page where the user acts with their own wallet. Nothing here moves funds or holds keys.
x402 pay-per-call: 146 MCP tools, no account or key. USDC on Base + Solana, $0.001-$0.01/call.
46 MCP tools free + pay-per-call x402 REST routes on Base. USDC from $0.001/call.
Paid x402 MCP utilities for Base-USDC balances, blocks, gas, HTTPS headers, and agent profile bios.
25 deterministic data, repository, API, and public-web utilities with Base-USDC x402 pay-per-call settlement.
Coinbase - 20 tools for market data, order books, and trading pairs
Hyperliquid - 2 tools for perpetuals, options, and position data
Coinmarketcap - 30 tools for data, metrics, and on-chain analytics
Coingecko - 36 tools for data, metrics, and on-chain analytics
Etherscan Api - 71 tools for data, metrics, and on-chain analytics
Binance - 340 tools for market data, order books, and trading pairs
