Migration Observations

Tatum v3 Blockchain API Endpoints have become deprecated in favour of the new unified v4 Blockchains APIBlockchains API. Find the migration changelog notice HERE

While most v3 endpoints keep a 1:1 behaviour with the response schema, a few of them experience breaking changes.

⚠️ Endpoints With Breaking Changes

• GET /v3/algorand/account/balance/{address} Explore Docs
• GET /v3/celo/account/balance/{address} Explore Docs
• GET /v3/bitcoin/info Explore Docs
• GET /v3/bcash/info Explore Docs
• GET /v3/dogecoin/info Explore Docs
• GET /v3/dogecoin/block/{hash} Explore Docs
• GET /v3/dogecoin/transaction/{hash} Explore Docs
• GET /v3/dogecoin/transaction/address/{address} Explore Docs
• GET /v3/dogecoin/transaction/address/batch Explore Docs
• GET /v3/litecoin/info Explore Docs
• GET /v3/litecoin/block/{hash} Explore Docs
• GET /v3/litecoin/transaction/{hash} Explore Docs
• GET /v3/litecoin/transaction/address/{address} Explore Docs
• GET /v3/litecoin/transaction/address/batch Explore Docs
• GET /v3/ada/info Explore Docs
• GET /v3/ada/account/{address} Explore Docs
• GET /v3/xrp/info Explore Docs
• GET /v3/xrp/account/{account}/balance Explore Docs
• GET /v3/xlm/info Explore Docs
• GET /v3/xlm/account/{account} Explore Docs
• GET /v3/tron/info Explore Docs
• GET /v3/tron/account/{address} Explore Docs
• GET /v3/vet/block/current Explore Docs

Major Field Updates

• Dogecoin transactions: Field names have changed
  • vin → inputs
  • vout → outputs

Endpoint Structure Changes

• Chain-specific endpoints are now unified with chain specified as a parameter
• Some endpoints previously using path parameters now use query parameters
• Address-based queries may have different parameter structures

Pending Clarifications

• Mempool transaction support for certain chains (e.g., BTC)
• Address-based transaction query behavior
• Legacy /v3/vet/transaction/{hash}/receipt functionality in v4