DFFFed PolicyDaily

DFF — Effective Federal Funds Rate

Latest value
3.63%
as of August 10, 2026
Refreshed hourly · Live via REST API

The effective federal funds rate — the volume-weighted median rate at which depository institutions lend reserves to each other overnight.

Update frequency
Daily
Unit
%
Historical coverage
1954-07/..

Why DFF matters

The primary transmission channel of Fed monetary policy. Used to model policy stance, real rates, and financial conditions.

Get the latest value

Fetch the most recent Effective Federal Funds Rate reading with a single GET request. Free tier includes 100 calls per day.

# cURL curl -H "X-API-Key: brd_your_key" \ https://api.bullrundata.com/api/v1/indicators/DFF # Python import requests r = requests.get( "https://api.bullrundata.com/api/v1/indicators/DFF", headers={"X-API-Key": "brd_your_key"}, ) print(r.json()) # JavaScript const res = await fetch("https://api.bullrundata.com/api/v1/indicators/DFF", { headers: { "X-API-Key": "brd_your_key" }, }); const data = await res.json();

Historical data

Retrieve the complete Effective Federal Funds Rate history with min/max/change statistics. Use the range parameter to control the window (1m, 3m, 6m, 1y, 2y, 5y). Free tier caps at 1 year; Pro extends to 5 years; Enterprise to 20 years.

curl -H "X-API-Key: brd_your_key" \ "https://api.bullrundata.com/api/v1/indicators/DFF/timeseries?range=5y"

Ask Claude via the connector

Installed the BullrunData connector? Paste this into any Claude conversation:

What's the current DFF value, and what does it mean for the market right now?

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Aliases

You can also address this indicator using these shortcuts — the API resolves them to the canonical series ID transparently:

FED_FUNDSFFR

FAQ

What is DFF?

DFF is the series ID for Effective Federal Funds Rate, sourced from Board of Governors of the Federal Reserve System. The effective federal funds rate — the volume-weighted median rate at which depository institutions lend reserves to each other overnight.

What's the current DFF value?

The most recent reading is 3.63 % as of August 10, 2026. This page updates hourly, or fetch fresh values via the REST API.

How do I get historical DFF data?

Call GET /api/v1/indicators/DFF/timeseries?range=5y with your API key. Free tier includes 1 year of history; Pro extends to 5 years; Enterprise to 20 years. Historical coverage: 1954-07/...

Related Fed Policy indicators

WALCL

Fed Balance Sheet (Total Assets)

Original source: Board of Governors of the Federal Reserve System — FRED series DFF

Start querying DFF in 30 seconds

Free API key includes 100 calls per day. No credit card required.