fred-stl 0.2.1

A Python library for the FRED API (Federal Reserve Bank of St. Louis)

fred-stl

A Python library for the FRED API (Federal Reserve Economic Data, St. Louis Fed).

Work in progress — the library is being built incrementally. New endpoint groups are added with each minor release.

Installation

pip install fred-stl

Requirements

• Python 3.13+
• A FRED API key (free, requires registration)

Quick start

import json
import urllib.parse
import urllib.request

from fred import category, for_request

params = category.RequestParams(
    api_key="your-api-key",
    file_type=category.FileType.json,
    category_id=0,
)

url = f"{category.ENDPOINT}?{urllib.parse.urlencode(for_request(params))}"

with urllib.request.urlopen(url) as resp:
    data = json.loads(resp.read())

response = category.Response.model_validate(data)
print(response.categories[0].name)  # "Categories"

Usage

Each FRED endpoint is exposed as a module at the top level of the fred package. Every module provides:

• RequestParams — a typed, validated model for building requests
• Response — a typed, validated model for parsing responses
• ENDPOINT — the API endpoint URL
• Any enum types needed to construct a request (e.g. FileType, SortOrder)

Use for_request to convert a RequestParams instance into a dict[str, str] ready for any HTTP client:

from fred import for_request, releases

params = releases.RequestParams(
    api_key="your-api-key",
    file_type=releases.FileType.json,
)

query = for_request(params)  # {"api_key": "...", "file_type": "json", ...}

Available endpoints

Category

Module	Endpoint
category	fred/category
category_children	fred/category/children
category_related	fred/category/related
category_series	fred/category/series
category_tags	fred/category/tags
category_related_tags	fred/category/related_tags

Releases

Module	Endpoint
releases	fred/releases
releases_dates	fred/releases/dates
release	fred/release
release_dates	fred/release/dates
release_series	fred/release/series
release_sources	fred/release/sources
release_tags	fred/release/tags
release_related_tags	fred/release/related_tags
release_tables	fred/release/tables

Contributing

See CONTRIBUTING.md.