e2e, formerly TesterArmy, raises US$8m for open source agent testing

e2e, formerly TesterArmy, raises US$8m for open source agent testing

3 November 2026: e2e, the company that until this week was called TesterArmy, says it has raised $8 million in seed funding and renamed itself after its open source framework for end-to-end testing with AI agents. Its announcement names Credo Ventures, KAYA, Point Nine, Baobab Ventures and Script Capital as backers, with angels including Snowflake co-founder Marcin Żukowski and Uber co-founder Oscar Salazar.

Not yet independently verified. e2e's own post lists Credo Ventures first among the backers but does not say who led; mamstartup.pl reports that Credo led and gives the round as EUR 7 million. Credo has not published its own post that we could find. We will update this when it can be confirmed, and remove this note.

From a testing service to an open source framework

TesterArmy started as a hosted platform. The company launched the e2e framework on 1 October under the Apache 2.0 licence, and the response changed its plans: e2e says the framework had 1,690,469 npm downloads by 3 November, running at about 100,000 a day, with more than 12,000 GitHub stars and 60 outside contributors.

The old product is being retired. The TesterArmy site says the service is winding down, new sign-ups are closed, and the platform will stay available until 15 January 2027 for existing customers to move over.

The seed follows a $1.2 million pre-seed the company announced on 15 September.

What the money is for

The company's plan, as its post sets it out, is an "e2e cloud" product next year: a hosted service on top of the free framework, which is the usual way open source developer tools make money. MamStartup, which reported the round from Poland, adds that e2e has more than 70 paying customers and will also earn from forward-deployed engineers who set up testing for larger clients, and gives the round as EUR 7 million, about $8 million, and total funding as EUR 8.05 million.

Why agent-driven testing is drawing money

The pitch is that when more code is written by AI agents, someone has to check that the result works, and end-to-end tests, which drive a real browser through a real user journey, are the slowest and most brittle kind to write by hand. An agent that writes and repairs those tests from a plain description of the journey is the gap e2e is going after. For buyers, an Apache-licensed framework also means the tests themselves are not locked to the vendor if the cloud product does not suit.

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Company profile on TrustList: e2e

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Sources

• e2e: TesterArmy is now e2e, and we've raised $8 million in seed funding, 3 November 2026
• TesterArmy: notice of wind-down (read 2026-11-04), 4 November 2026
• MamStartup: Polski e2e zbiera 7 mln euro na testowanie AI (Polish), 4 November 2026