"Finding source code search tools similar to Probe" matching MCP connectors:

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

Settlement layer for AI agent commerce. 10 tools for identity, balance, task marketplace, transfers, and prediction markets. Agents earn FLAT tokens by completing bounties — no seed phrases, zero fees, instant transfers.

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.

Buy game keys, gift cards, and subscriptions via x402 USDC on Base. 8 MCP tools, no install.

AI-native stablecoin settlement rail replacing SWIFT for institutional cross-border payments. 14 tools covering settlement quotes, execution, ESG scoring, oracle status, fee verification, competitor comparison, rail health, investment context, and MPP-gated macro intelligence. Settles via Base mainnet USDC at ~1.385% all-in.

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.

Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.

Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.

Read-only DERO blockchain MCP: 33 tools (12 composites) incl. TELA discovery + bundled docs.

x402-paid agent tools: 18 over HTTP, 14 over stdio. USDC per call, no API key.

Korean crypto + news (kpop/semi), 17 tools, signed receipts. x402 Base+Polygon+Solana.

63 pay-per-call tools for agents: vision, text, data, web, blockchain. USDC on Base via x402.

Live tools for USDi: CPI-indexed exchange rate, contract/pool addresses, and mint/redeem mechanics.

Real-time DEX and on-chain data across 36 blockchains: liquidity pools, token prices, OHLCV, transactions, and cross-chain search. 17 keyless tools.

Verified merchants accepting agentic payments on Lightning/L402/BOLT12/USDT — search, verify, pay.

Autonomous research agent that pays every source it cites in USDC on Arc via x402 micropayments.

On-chain honeypot/rug scanner, market data, and launch tools for Robinhood Chain (EVM 4663).

x402 paid APIs for AI agents on Base. Blockchain, wallet, DEX, crypto, web search.

10 pay-per-call tools for AI agents: QR, screenshots, DNS, OCR, PDF, email & more. USDC on Base.