Lightning-paywall sidecar: wraps any stdio MCP server, requires paid invoices before tool calls.
Paywall-mcp is an MCP integration. Lightning-paywall sidecar: wraps any stdio MCP server, requires paid invoices before tool calls.
The published npm package is paywall-mcp, version 0.1.2. Its declared MCP transport is stdio.
The package declares PAYWALL_UPSTREAM_COMMAND (required): Command to spawn the upstream MCP server (e.g. npx); PAYWALL_UPSTREAM_ARGS: JSON array of args for the upstream command; NWC_CONNECTION_STRING (required): NWC connection string of the receiving wallet (receive-only recommended); PAYWALL_DEFAULT_PRICE_SATS: Default price in sats for tools not in PAYWALL_PRICE_MAP; PAYWALL_PRICE_MAP: JSON map of tool name to price in sats.
Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.
View the publisher’s registry entry · Project repository. This profile uses version 0.1.2 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.
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| Variable | Description | Required |
|---|---|---|
| PAYWALL_UPSTREAM_COMMAND | Command to spawn the upstream MCP server (e.g. npx) | Yes |
| PAYWALL_UPSTREAM_ARGS | JSON array of args for the upstream command | Optional |
| NWC_CONNECTION_STRING | NWC connection string of the receiving wallet (receive-only recommended) | Yes |
| PAYWALL_DEFAULT_PRICE_SATS | Default price in sats for tools not in PAYWALL_PRICE_MAP | Optional |
| PAYWALL_PRICE_MAP | JSON map of tool name to price in sats | Optional |
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