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0.15¢ per rate51 datapoints

US Treasury Rates API

US Treasury rates and debt data by date, from par and real yield curves to bill rates, long-term rates and debt to the penny. Pick the series and date range.

Treasury

Sample

Sample data

Here's a sample run of 10 rate records, showing the exact schema and results you can expect.

#
ID
Series
Date
Par 1 Month
Par 6 Week
Par 2 Month
Par 3 Month
Par 4 Month
Par 6 Month
Par 1 Year
Par 2 Year
Par 3 Year
Par 5 Year
Par 7 Year
Par 10 Year
Par 20 Year
Par 30 Year
Real 5 Year
Real 7 Year
Real 10 Year
Real 20 Year
Real 30 Year
Bill 4 Week Bank Discount
Bill 4 Week Coupon Equivalent
Bill 4 Week Maturity
Bill 4 Week Cusip
Bill 6 Week Bank Discount
Bill 6 Week Coupon Equivalent
Bill 6 Week Maturity
Bill 6 Week Cusip
Bill 8 Week Bank Discount
Bill 8 Week Coupon Equivalent
Bill 8 Week Maturity
Bill 8 Week Cusip
Bill 13 Week Bank Discount
Bill 13 Week Coupon Equivalent
Bill 13 Week Maturity
Bill 13 Week Cusip
Bill 17 Week Bank Discount
Bill 17 Week Coupon Equivalent
Bill 17 Week Maturity
Bill 17 Week Cusip
Bill 26 Week Bank Discount
Bill 26 Week Coupon Equivalent
Bill 26 Week Maturity
Bill 26 Week Cusip
Bill 52 Week Bank Discount
Bill 52 Week Coupon Equivalent
Bill 52 Week Maturity
Bill 52 Week Cusip
1
parYield:2026-10-30
parYield
2026-10-30
4.06
4.09
4.16
4.16
4.18
4.25
4.36
4.56
4.65
4.71
4.8
4.94
5.34
5.31
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2
parYield:2026-10-29
parYield
2026-10-29
4.06
4.08
4.17
4.18
4.21
4.28
4.42
4.61
4.73
4.78
4.87
4.98
5.35
5.32
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3
parYield:2026-10-28
parYield
2026-10-28
4.07
4.1
4.16
4.18
4.22
4.32
4.47
4.67
4.8
4.85
4.95
5.05
5.41
5.37
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4
parYield:2026-10-27
parYield
2026-10-27
4.1
4.11
4.18
4.22
4.31
4.34
4.5
4.7
4.8
4.82
4.91
4.99
5.34
5.3
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
realYield:2026-10-30
realYield
2026-10-30
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2.25
2.42
2.6
2.92
3.08
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
6
realYield:2026-10-29
realYield
2026-10-29
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2.31
2.46
2.63
2.92
3.07
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
7
realYield:2026-10-28
realYield
2026-10-28
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2.36
2.51
2.67
2.96
3.1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
8
billRates:2026-10-30
billRates
2026-10-30
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3.91
3.98
2026-12-01
912797VZ7
3.91
3.98
2026-12-10
912797VG9
4
4.08
2026-12-29
912797WH6
3.99
4.08
2027-01-28
912797VU8
4.07
4.18
2027-03-02
912797XB8
4.11
4.25
2027-04-29
912797WW3
4.17
4.36
2027-10-28
912797WT0
9
billRates:2026-10-29
billRates
2026-10-29
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3.91
3.98
2026-12-01
912797VZ7
3.91
3.98
2026-12-10
912797VG9
4.02
4.1
2026-12-29
912797WH6
4
4.1
2027-01-28
912797VU8
4.1
4.21
2027-03-02
912797XB8
4.15
4.3
2027-04-29
912797WW3
4.22
4.42
2027-10-28
912797WT0
10
billRates:2026-10-28
billRates
2026-10-28
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3.9
3.97
2026-11-24
912797VY0
3.94
4.01
2026-12-10
912797VG9
4
4.08
2026-12-22
912797WG8
4.01
4.11
2027-01-28
912797VU8
4.12
4.23
2027-03-02
912797XB8
4.18
4.33
2027-04-29
912797WW3
4.27
4.47
2027-10-28
912797WT0

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0.15¢ per rate
Est. up to$0.15100 rates

Output limits

live
curl -X POST "https://api.mindcase.co/v1/data/treasury/rates/run?wait=true" \
  -H "Authorization: Bearer mk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "params": {
    "series": "",
    "startDate": "",
    "endDate": ""
  }
}'
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