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usedby

Agent frameworks & AI gateways tools used by Artificial Intelligence companies

Each line links its public proof and the date usedby last checked it.

29

Artificial Intelligence companies use Agent frameworks & AI gateways tools

5 confirmed 24 observed

The most used: E2B (7), Browserbase (6), and Portkey (4).Data as of Oct 21, 2026

Ranking

Tools ranked by the Artificial Intelligence companies that use them. Ties go to the stronger proof.

Who uses each tool

Strongest proof first. A job post is a signal, the weakest proof.

  1. 1E2B7 companies · Checked Oct 15, 20267
    3 confirmed 4 observed

    E2B profile

  2. 2Browserbase6 companies · Checked Oct 16, 20266
    0 confirmed 6 observed

    Browserbase profile

  3. 3Portkey4 companies · Checked Oct 16, 20264
    1 confirmed 3 observed

    Portkey profile

  4. 4TrueFoundry4 companies · Checked Oct 20, 20264
    1 confirmed 3 observed

    TrueFoundry profile

  5. 5OpenRouter4 companies · Checked Oct 19, 20264
    0 confirmed 4 observed

    OpenRouter profile

  6. 6Flowise2 companies · Checked Oct 17, 20262
    0 confirmed 2 observed

    Flowise profile

  7. 7Mem02 companies · Checked Oct 21, 20262
    0 confirmed 2 observed

    Mem0 profile

How usedby counts

5 confirmed 24 observed

A company counts once per tool, at its strongest proof: confirmed (a case study, a named testimonial, a press release or the company's own account), declared (the company told usedby), observed (a vendor logo wall or customers page) or signal (a job post). Counts cover the companies on usedby, never the whole market.

17 companies that sell software were left out, so a vendor is never counted as a user.

Data as of October 21, 2026.

Questions

Which Agent frameworks & AI gateways tools do Artificial Intelligence companies use most?

E2B leads: 7 of the 29 Artificial Intelligence companies on usedby that use Agent frameworks & AI gateways tools use it. Next: Browserbase (6), Portkey (4), TrueFoundry (4), and OpenRouter (4). See E2B.

How many Artificial Intelligence companies use Agent frameworks & AI gateways tools?

29 Artificial Intelligence companies on usedby use at least one of 7 Agent frameworks & AI gateways tools. It counts the companies usedby tracks.

What proof backs these lines?

Of the 29 companies, each counted at its strongest proof: 5 confirmed, 0 declared, 24 observed and 0 known from a job post.

How does usedby build this ranking?

usedby counts each Artificial Intelligence company once per tool, from public proof: case studies, press releases, the company's own site or its declaration to usedby, vendor customer pages and job posts. 17 software vendors are left out. Every line shows its proof and the date usedby last checked it.