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Page
Gov Bond 30y
Section
API Data Docs
Canonical URL
https://fxmacrodata.com/api-data-docs/jpy/gov_bond_30y
Source
MOF
Last Updated
2025-06-02

Provenance And Trust

Cite the canonical URL and source field above. Where available, this page maps to official publisher releases and timestamped updates.

What Changed

Latest change vs prior release: 0.0400 (1.44%)

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What source should be cited? Use the canonical URL and the listed source field; cite official publisher references when available.

How fresh is this content? The last updated value above reflects the page metadata or latest available data timestamp.

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30-jährige Staatsanleiherendite (JPY)

Reference information for 30-Year Government Bond Yield.

Latest reading: 2.82 Percent · Last updated: · Source: MOF

Category: Government Bond Yields

API Endpoint

/api/v1/announcements/jpy/gov_bond_30y

Use the production OpenAPI schema for the authoritative REST route metadata.

https://fxmacrodata.com/api/openapi.json

Browse the full endpoint reference

Compare 30-jährige Staatsanleiherendite across all supported currencies →

Optional Indicator Availability (JPY)

Optional indicators use per-currency fetcher capability checks and may be temporarily hidden while source coverage is being remediated.

foreign_reserves
Available
cb_assets
Available
inflation_mom
Unavailable Not implemented on this currency fetcher yet.

About 30-jährige Staatsanleiherendite (JPY)

The 30-year government bond yield for Japan reflects the market's ultra-long-term view on inflation, growth, and sovereign credit risk. It is dominated by term premium and inflation expectations over multi-decade horizons.

Why FX traders watch it

The 30-year yield is particularly sensitive to fiscal dynamics and long-run inflation expectations. Sustained selloffs in 30-year bonds can signal markets losing confidence in fiscal sustainability, weighing on the jpy.

How to interpret the data

Rising 30-year yields driven by higher term premium are bearish for the jpy as they signal fiscal risk or loss of inflation credibility. Falling 30-year yields alongside a steepening short end signals a growth scare.

Historical 30-jährige Staatsanleiherendite (JPY)

Source: MOF  ·  Daily  ·  Percent

Data provided by FXMacroData via the /api/v1/announcements/jpy/gov_bond_30y endpoint. For access, see pricing.

Data Source

Primary Source

MOF

Official Series ID

JGB_30Y

Data Format and Properties

Data Frequency

Daily

Unit of Measure

Percent

JSON Response Structure

The endpoint returns a chronological list of observations in JSON format. 

{
    "currency": "JPY",
    "indicator": "gov_bond_30y",
    "has_official_forecast": false,
    "start_date": "2023-01-01",
    "end_date": "2023-12-31",
    "data": [
        {
            "date": "2024-07-01",
            "val": 4.2,
            "announcement_datetime": 1722456000
        }
    ]
}

Request Parameters & Usage

Parameter Required Format Description
start_date NO YYYY-MM-DD Optional lower bound for the requested history.
end_date NO YYYY-MM-DD Optional upper bound. Defaults to the current date.
api_key CONDITIONAL string Required for non-USD announcement requests. USD announcement requests are public without an API key.

Example Usage

To retrieve 30-jährige Staatsanleiherendite data for JPY from 2023: 

GET https://fxmacrodata.com/api/v1/announcements/jpy/gov_bond_30y?start_date=2023-01-01&end_date=2023-12-31&api_key=YOUR_API_KEY

Frequently Asked Questions

How often is Japan 30-Year Government Bond Yield updated?
30-Year Government Bond Yield for Japan is released on a daily schedule by Bank of Japan (or the relevant national statistics agency). FXMacroData ingests each new value within seconds of the official publication and exposes the exact announcement timestamp on every record.
What unit is 30-Year Government Bond Yield reported in?
The series is published in Percent. The exact unit is also returned on every API response under the indicator metadata.
Where does FXMacroData source Japan 30-Year Government Bond Yield data?
Data is fetched directly from Bank of Japan or the official national statistics publication for Japan. The source URL is preserved on every announcement record so downstream consumers can trace the value back to its primary release.
How do I query 30-Year Government Bond Yield for Japan via the API?
Issue a GET request to /api/v1/announcements/jpy/gov_bond_30y?api_key=YOUR_API_KEY. The response contains a chronological list of observations with values, release dates, and announcement timestamps. USD announcement data is public; other currencies require a Professional API key.

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