Technology answer

FastAPI

62

companies run it, <0.01% of 54,527,857 in the index. Landing 12 Sept 2026.

Hosts: 179 live hosts run it, of 191,809,695 hosts in the index, <0.01%. A host is a website, not a company.

Companies by month

No published series

62 companies is under the publication floor of 1,000, and the fixed panel anchored at 31 Dec 2020 carries 6 of them. A monthly line drawn off that many observations would be noise at the same weight as a line off millions, so this page states the count and its date and publishes no series.

First discovered 31 Jul 2026, last discovered 10 Sept 2026.

Both denominators, and a third

Shares of the same 62each row a different wholelanding 12 Sept 2026

Denominator

Companies

Share

companies in the index

54,527,857

<0.01%

companies running anything in Web Frameworks

3,723,648

<0.01%

companies running anything in Python web frameworks

75,112

0.08%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, FastAPI is rank 8 of 9 technologies in Python web frameworks.

Open as a segment

62 companies; add a country, a sector or a band on the segment page. Counting is free.

/companies/tech-fastapi

Open the segment

Catalogue record

As recorded in the cataloguetaxonomy release tax-2026.10last discovered 10 Sept 2026

A Python framework for building APIs and web backends.

FastAPI is an open-source Python web framework for building APIs and backend services. It is maintained by the FastAPI project led by Sebastián Ramírez and is used by developers to create high-performance API services.

Kindlibrary

VendorFastAPI Project, tiangolo.com

PathWeb Engineering > Web Frameworks > Python web frameworks

Slugfastapi

Deploymentself-hosted

Pricingfree

Open sourceyes

First discovered2026-07-31

Last discovered2026-09-10

Taxonomy releasetax-2026.10

One click under this answer

Subcategory answerPython web frameworksCompanies running anything in Python web frameworks, 75,112 of 54,527,857 in the index, and the technologies ranked in it.Category answerWeb FrameworksThe category above this one, with its subcategories and the companies in each.CatalogueAll 8,177 technologiesRanked by the companies running them, with the publication gate named and the long tail drawn.