Tatum v3 to v4 Blockchain API Migration Guide

Tatum v3 Blockchain API Endpoints have become deprecated in favour of the new v4 Blockchains API Endpoints .

v4 Blockchains API Endpoints bring schema standardisation and improved functionality across chains, backed by a robust, unified and scalable infrastructure built for long term support.

Affected customers are encouraged to begin planning their migration as soon as possible to avoid service disruptions.

⏰ End of Life Deadline

❗️
Important
v3 Blockchain API Endpoints will remain operational until May 31, 2026, after which the underlying infrastructure will be decommissioned.

🔄 Migration Guides

We've prepared comprehensive migration guides to help you transition from v3 to v4 Blockchain API Endpoints.

Visit our Blockchains API Migration Path in the Guides section for:

Step-by-step migration instructions for each endpoint
v3 to v4 endpoint mapping references