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How much is a stamp: USPS Forever stamp, postcard, international and letter postage by weight.
Streamable HTTP
https://postage-stamp-price-mcp.lipmichal.workers.dev/mcpclaude mcp add --transport http postage-stamp-price-mcp https://postage-stamp-price-mcp.lipmichal.workers.dev/mcpThis server publishes no installable package.