head to head/Developer Tools

Send21 vs uivoid

The community leans uivoid right now. 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.

uivoid

Turn APIs into MCP tools for free

community boosts

⚡ 1

pricing

Paid

what it is

Turn your self-hosted APIs into MCP tools for AI agents. Your API stays on your servers; UIVOID hosts the MCP gateway on a dedicated subdomain. Free, with authentication, hosted databases, scoped permissions, and audit logs.