"research" matching MCP connectors:

Search art research, estimate commissions, and prepare company intelligence purchases via x402.

MIT research news: science & engineering. $0.01/query. Register in-session — free testnet funds.

Read-only verification evidence for paid machine services and buyer policy checks.

Lets AI agents autonomously pay for and call L402-protected APIs in Bitcoin Lightning. 12 tools across two layers: l402_fetch / l402_balance / l402_set_budget / l402_spending_report (generic L402 client) + 11 VERITY paid services (BTC price, web search, scrape, AI summarize/sentiment/translate, world state, domain intel, deep research, strategic alpha, integration). Sub-second settlement, no API keys, no chargebacks.