"Merchant Category Code (MCC) data lookup" matching MCP connectors:

Twenty-two paid x402 and MPP tools for agent discovery, payment safety, data, and DeFi.

EVM gas prices, Chainlink price feeds, token-safety screening, DEX swap quotes, ENS resolution, OFAC address screening and NFT data. Pay-per-call in USDC on Base via x402 — no signup, no API keys.

Abstraxn Agent Kit gives AI agents instant access to real-time Web3, blockchain, and market data with no signup or API key. Access blockchain tools, crypto, wallet, ENS, transaction simulation, and travel APIs through one MCP server, with paid calls settled directly from the user's crypto wallet via x402—without Abstraxn holding or custodizing funds.

AgentFeed: 47 tools — our own liquidation tape + tokenized-equity peg data, paid in USDC.

Live multi-asset market data for AI agents with provenance, starter credits, x402, and examples.

Read-only martingale data: Martingale Score & Startingale for 250+ cryptos and US stocks.

Teardrop is the native economic layer for AI agents, providing a robust suite of tools for multi-chain portfolio tracking, DeFi yield analysis, and gas estimation. It enables autonomous agents to securely find Web3 data and manage micro-payments on-chain with zero human intervention.

Authenticated hosted Streamable HTTP MCP server for crypto data routing through PubFi capability and gateway tools.

MCP server for Fuse Network: balances, tokens, staking, DeFi data, swaps and on-chain transactions.

Universal pay-per-call tool API for AI agents. Web search, price feeds, hive memory, LLM routing, code sandbox. Free tier (10 calls/day, no signup). x402 payments on Base + Solana.

On-chain stablecoin market cap and Bitcoin institutional holdings data.

Solana token risk-scoring MCP server for AI trading agents with insider wallet cluster detection.

Robinhood Chain stock token data — price, split-adjusted supply, DeFi, corporate actions, movers.

Live crypto data: funding rates, funding arbitrage, OI pressure, Fear & Greed. Free, no API key.

PayPerByte — per-byte data for AI agents: x402 USDC on Base, EIP-712-attested. No token.

Keyless prediction-market data across 12 venues plus paper-trading of crypto spot, futures, and PM.

Verified dev-error fixes sold per-lookup to AI agents on-chain. Free search; 3 free samples.

Time-series nobody else archives: LLM price history, prediction markets, gas, perp funding.

MCP server connecting AI agents to non-custodial staking data across 130+ networks.

One-call market verdict, plus funding, open interest, execution cost, volatility and macro