"MCP servers that work without API keys" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Prove a hidden value reached a threshold without revealing the value.
Dial by Aloha Labs gives an AI agent its own real US or Canadian phone number through one remote MCP server, with no install. Signup is open, and agents can sign themselves up with the sign_up tool. Dial reads incoming verification codes, receives texts, and places AI voice calls with 10 voice personas. Free: $5 credit, no card, OTP codes included. Paid plans start at $15/mo.
Real-time Google Search and Google Maps results as JSON. Pay only for successful searches.
Web search and page reading for AI agents with zero API credits
API uptime monitor, health check, downtime alerts, webhook alerts. x402 USDC.
API uptime monitor, health check, downtime alerts, webhook alerts. x402 USDC.
Valmiki Ramayana verses: lookup, search and verse-of-the-day in 4 languages
Korean NLP MCP server: morphological analysis, tokenization, spell & grammar checking (Bareun)
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