OpenYield Data Services

OpenYield runs an SEC-registered ATS for U.S. fixed income. This connector gives Claude read-only access to OpenYield's bond market data: real bid and offer prices from OpenYield's live order book, not evaluated prices. Look up a Treasury, municipal, corporate or agency bond by CUSIP, ISIN, FIGI or issuer ticker, or use a shortcut such as CT10 for the current 10-year Treasury. Screen the bonds quoted on OpenYield by issuer, state, sector, coupon, maturity, yield, IG/HY grade, callability or tax status (tax-exempt or taxable), and see current bid and offer prices, yields and sizes, refreshed about every 10 minutes. Get today's intraday prices and three months of end-of-day prices for a bond, the previous close for a whole asset class, and how much is bid and offered on the marketplace. Pull TRACE and MSRB trade prints for one bond or the whole market, a bond's daily trading activity, and the day's most active corporate and municipal bonds. Count a day's prints and their par, for the whole market or chosen bonds, split by on or off ATS, dealer or customer, side, size or hour. See the live Treasury yield curve from 1-month bills to the 30-year. Convert a price to yield to worst, yield to maturity and spread, or a yield or spread back to price, and get cashflows, accrued interest and settlement amounts. All tools are read-only: the connector cannot place, change or cancel orders. Each person signs in with their own OpenYield Data Services login and sees the data their account is entitled to, including TRACE timing (delayed 4 hours without a real-time license) and print-history limits. An OpenYield Data Services account is required; to request one, contact OpenYield at openyld.com/contact-us. Bid and offer prices refresh about every 10 minutes while the OpenYield marketplace is open, 8am to 5pm ET. The Treasury yield curve is live.