head to head/Developer Tools

Send16 vs Send21

Neck and neck on boosts. Profiles, pricing and deals below.

Send16

email and SMS marketing MCP server

community boosts

⚡ 0

pricing

Freemium

what it is

Connect Claude, Claude Code or Cursor to Send16 and run your email from a chat: design campaigns, build segments, send receipts and read stats.

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.