Send21 vs StackPick
Neck and neck on boosts. Profiles, pricing and deals below.
Send21
Try a crypto pay link on testnet, no account
community boosts
⚡ 0
pricing
Freemium
what it is
Make a real test payment from your own wallet on Bitcoin, Solana, Ethereum, Base, Arbitrum and Polygon test networks. No account, no email.
StackPick
JSON API and MCP
community boosts
⚡ 0
pricing
Freemium
what it is
Free read-only JSON API and MCP server for StackPick rankings. Same scores and order as the site. Rankings are never paid.