OpenYield Documentation

API references and connectivity specs for OpenYield trading, data services, and agentic access.

MCP

Connect AI agents over MCP

Beta

Let Claude, ChatGPT and Gemini construct and maintain portfolios, place orders and pull live market data through the OpenYield Agentic API over MCP or REST.

URLhttps://testagentic.openyld.com/mcp

Connect an agent

ATS Core

ATS Subscriber Access

Trade directly on the OpenYield ATS with order workflows and institutional connectivity.

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FIX Specification

Institutional FIX connectivity for order routing, execution reports, and the real-time order book feed.

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Agentic API

Beta

Place, replace, cancel, and monitor orders and fills over REST, with live BBO. Build and maintain portfolios with AI agents over MCP.

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Data Services

Data Subscription

Fixed-income data derived from firm orders, delivered over REST and WebSocket as a standalone data service.

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Data Services API

Explore our market data and bond APIs with interactive reference documentation.

Reference data
Price history (daily & intraday)
Analytics – price/yield, cashflows
Market-wide tape – TRACE / MSRB
Top-of-book search and live Treasury curve

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