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mcp/harbor
Verified official

PayStage MCP

v0.3.5

io.github.base-buzz/mcp

Umbrella MCP: payment preflight, auth watch, HIP-3 trade preflight, velocity checks

transport:streamable-http runtime:npm tools:9
View source Website

Target client

run in your project directory 

claude mcp add --transport http mcp https://api.paystage.xyz/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

evaluate_mcp_payment

evaluate mcp payment

list_outstanding_auths Read-only

list outstanding auths

evaluate_outstanding_auths

evaluate outstanding auths

evaluate_hip3_trade

evaluate hip3 trade

evaluate_velocity

evaluate velocity

verify_receipt

verify receipt

decode_payment_required

decode payment required

validate_policy

validate policy

evaluate_batch

evaluate batch

All 9 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.