Browse MCP servers
MCP Harbor, an MCP Server Registry, Directory, and Tower to Buzz.
4 matching
Showing 1–4 of 4 servers
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PayStage Trade Preflight
stdioxyz.paystage/trade-preflight
MCP tool: evaluate HIP-3/trade.xyz orders against a local TradePolicy before trading
official -
PayStage Preflight
stdioxyz.paystage/preflight
Evaluate x402 PaymentRequired against a local spending policy before an agent pays
official 1 secrets -
PayStage
stdioxyz.paystage/mcp
Umbrella MCP: payment preflight, auth watch, HIP-3 trade preflight, velocity checks
official 2 secrets -
PayStage Auth Watch
stdioxyz.paystage/auth-watch
Read-only MCP tools to list and flag outstanding ERC-20, Permit2, and EIP-3009 auths
official 2 secrets
Search this catalogue from your agent
The registry is itself an MCP server. Add it once and your agent runs these same searches, with no account and no key.
claude mcp add --transport http mcp-registry-search https://ai.mcpharbor.dev/mcp