Chaingateway.io

A REST API to create blockchain wallets, send native and token transactions, check balances, and receive webhooks for on-chain events across multiple blockchains.

The Chaingateway.io API uses api key authentication; has paid pricing; offers a free tier (7-day free trial, no credit card required (Plus plan listed as 14 Days Free Trial on pricing page)); rate limits: Request quotas per plan: Plus 50k, Pro 200K, Premium 2M, Enterprise 200M requests. Verified 2026-07-12 with per-field source links.