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Ondo Global Markets (Ondo GM) tokenizes publicly-traded US stocks and ETFs, allowing investors outside the United States to mint, transfer, and redeem equity-backed tokens across multiple public blockchains. GM tokens are available on Ethereum, BNB Chain, and Solana. On-chain assets are issued as ERC-20 tokens for EVM-based chains and as SPL Token-2022 tokens on Solana. Each token represents direct exposure to the underlying asset, held with a regulated custodian through a licensed broker-dealer. To support integration across the ecosystem, Ondo GM offers a suite of APIs designed for infrastructure providers such as wallets, exchanges, and fintech applications.

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API Surfaces

The API is delivered through two surfaces, alongside the on-chain smart contract layer. The REST API spec can be found at docs.ondo.finance/openapi.json, and the streaming API’s Protocol Buffers schema is available for generating typed clients.

REST API

High-performance request/response access to essential pricing, quote generation, token lifecycle, and token contract metadata. The full OpenAPI specification is available for use with code generators and other tooling.

Streaming API

Low-latency, real-time updates over gRPC so clients can react to market movements as they happen rather than polling. The Protocol Buffers schema is available for generating typed clients.

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What the API Supports

The smart contract layer provides the ability to mint and redeem (buy/sell) the tokenized asset.

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How It Works

Here’s the typical flow for Ondo GM, using TSLAon as an example: Minting Process:
  1. Primary Purchaser requests a mint attestation from Ondo GM API.
  2. Primary Purchaser broadcasts transaction with the provided mint attestation signature along with a USD stablecoin (such as USDC) to the smart contract to atomically mint TSLAon to their whitelisted address.
Redeeming Process:
  1. Primary Purchaser requests a redemption attestation from Ondo GM API.
  2. Primary Purchaser broadcasts transaction with the provided redemption attestation signature along with TSLAon to the smart contract to atomically redeem TSLAon for a USD stablecoin (such as USDC) to their whitelisted address.

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Get Access

If you’re interested in getting access to the Ondo Global Markets API, reach out to onboarding@ondo.finance.