The three protocol versions behind the integration surfaces.
The three surfaces
Which surface for which job
V2 is recommended for new AMM integrations; V1 remains live but is legacy. The V3 order book is a separate matching system with its own API and concepts page.
Test before mainnet
Every surface has a testnet counterpart:
Create a Hedera testnet account and fund it with test HBAR through the Hedera developer portal. Use a dedicated integration account for bots — never a primary wallet key.
Next steps
Quickstart
Make your first API calls in under five minutes.
Contract deployments
Canonical contract and token IDs with HashScan links.
API reference
Both APIs, authentication models, and every endpoint.
Build with AI
llms.txt, the docs MCP server, and an agent rules file.