Send21 vs SignOps
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.
SignOps
API docs: push, Approve, passkeys, TOTP and email OTP
community boosts
⚡ 0
pricing
Freemium
what it is
SignOps API reference: quickstart, API keys, push and topics, Approve, passkeys, authenticator codes, email OTP, webhooks, events, limits and Android delivery.