MCP HeartbeatTHE MCP OBSERVATORY
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Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

Alternatives to ExchangeRebel — pay-per-call APIs for AI agents (x402 on Solana)

24 checked servers in Payments & trading · Finance & Crypto, ranked by checks passed then median latency.

Back to ExchangeRebel — pay-per-call APIs for AI agents (x402 on Solana)