Send21 vs Sendmux
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.
Sendmux
The Email API for AI Agents, with Inboxes
community boosts
⚡ 0
pricing
Freemium
what it is
Sendmux is an email API that gives every AI agent a real inbox. Send and receive, route outbound through your own providers, and fail over automatically.