head to head/Developer Tools

Send21 vs The IP API

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.

The IP API

TheIpAPI.com: IP Address API and Geolocation API

community boosts

⚡ 0

pricing

Freemium

what it is

Fast and accurate IP geolocation API for developers. Look up country, city, coordinates, timezone, ASN, company, and VPN/datacenter detection for any IPv4 or IPv6 address. Free tier: 1,000 requests per day.