head to head/Developer Tools

OnPage.dev vs Send21

Neck and neck on boosts. Profiles, pricing and deals below.

OnPage.dev

OnPage.dev MCP server for Claude and ChatGPT

community boosts

⚡ 0

pricing

Freemium

what it is

Free MCP server with 20 SEO and AI-visibility tools for Claude, ChatGPT and Cursor: site audits, competitor gaps, fixes, redirects, robots.txt, llms.txt. No account.

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.