payments 543 typescript 513 react 305 billing 258 saas 257 payment 257 nextjs 222 checkout 195 cli 193 mcp 186 subscriptions 177 sdk 175 ai 159 webhooks 149 authentication 144 webhook 134 paypal 125 ai-agents 122 auth 116 oauth 112 supabase 104 api 103 react-native 103 github 100 model-context-protocol 100 nodejs 99 claude 95 subscription 88 open-source 87 security 81 oauth2 81 plugin 80 express 79 ecommerce 76 sso 75 oidc 74 iam 70 vue 66 cursor 62 payment-gateway 61 slack 59 llm 59 javascript 58 openai 58 apple-pay 53 better-auth 52 razorpay 52 shopify 51 aws 51 postgres 49 developer-tools 49 2fa 49 email 48 template 47 firebase 45 analytics 45 nestjs 45 x402 44 starter 44 ios 43 android 42 boilerplate 42 stripe-checkout 42 gateway 42 braintree 41 prisma 40 crypto 39 monorepo 39 postgresql 38 cms 38 clerk 37 ai-agent 37 anthropic 37 square 36 bun 35 elements 35 contentful 35 devops 35 claude-code 34 monetization 34 testing 34 vercel 34 angular 33 cloudflare-workers 33 fintech 33 mcp-server 32 cdk 32 scaffold 32 agents 32 drizzle 32 entitlements 31 stripe-api 31 twilio 31 native 31 database 30 owasp 30 redis 30 backend 29 node 29 aws-cdk 28