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Lightning-paywall sidecar: wraps any stdio MCP server, requires paid invoices before tool calls.
Package npm :paywall-mcp · website · measurements and detailsResearch mobile apps, onboarding, paywalls, and competitors with real screens, flows, and reviews.
MCP endpoint :https://api.screensdesign.com/v1/mcp · website · measurements and detailsx402 paywall layer for creator sites and agents: paid content, tips, pricing, reputation, ledger.
MCP endpoint :https://api.nibgate.xyz/mcp · website · measurements and detailsSearch and read Toolaby's docs: payments, licences and paywalls for Chrome extensions.
MCP endpoint :https://toolaby.app/api/mcp · website · measurements and detailsStudy screens, flows and paywalls from top-earning iOS apps, then build from what wins.
MCP endpoint :https://mcp.appllama.io/mcp · website · measurements and detailsR_net LP risk evaluator for DeFAI agents. IL + Breakeven Corridor O(1). L402 Lightning paywall.
MCP endpoint :https://api.arsenal-quant.com/mcp · website · measurements and detailsPaywalled SMARD day-ahead electricity prices (DE-LU, 15‑minute resolution) via x402 on Base mainnet.
MCP endpoint :https://smard-energy-prices-x402.favo.workers.dev/mcp · website · measurements and detailsx402 USDC paywall bridge for MCP — pay per tool call on Solana.
Package npm :@agenticpay/mcp-bridge · website · measurements and detailsPay for x402 paywalls, datasets, and store checkouts on Solana, behind hard spending caps.
Package npm :@solinkify/mcp · website · measurements and detailsUSDC payments for AI agents on Base — direct, tabs, x402 paywalls, discovery
Package npm :@pay-skill/mcp · website · measurements and detailsMonetize any MCP server: x402 paywall, pay-per-call billing in USDC on Base, agent marketplace.
MCP endpoint :https://paygate-mcp.rendercriativo.workers.dev/mcp · website · measurements and detailsL402 Lightning paywall + DoI score gate for MCP tools: challenge, verify, score.
Package npm :@powforge/mcp-l402-gate · website · measurements and detailsSelf-hosted MCP proxy that puts an x402 paywall in front of an existing MCP server
Package npm :@cryptoapis-io/mcp-x402-accept · website · measurements and detailsDual-rail Lightning paywall for MCP servers: accepts L402 and x402 bip122/exact, one LNBits backend.
Package npm :@powforge/mcp-pay-gate · website · measurements and detailsSpend limits for AI agents that pay with x402: every paywall is policy-checked before a cent moves.
Package npm :@reinconsole/mcp · website · measurements and detailsx402 HTTP 402 + MCP paywall: charge USDC per agent call. Self-host via npx or Docker.
Package npm :x402-micro-tollgate · website · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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