Send21 vs Sendburg
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.

Sendburg
Sendburg MCP Setup: Connect Claude & ChatGPT in 2 Minutes
community boosts
⚡ 0
pricing
Freemium
what it is
Step-by-step setup for the Sendburg MCP connector — connect Claude or ChatGPT to 250M+ B2B contacts, with working prompts, credit rules, and troubleshooting.