From the experiment

Do coding agents recommend Stripe?

Stripe is the most chosen payment provider, taking 88% of 395 judged payments sessions. Measured with Claude Code, Codex and Cursor.

Published September 3, 2026 Read as Markdown

Stripe is the most chosen payment provider, taking 88% of 395 judged payments sessions. It was also raised as a candidate in 46 further sessions without being chosen.

This page reports what happened when Claude Code, Codex and Cursor had to solve a problem in payments inside a realistic codebase. Not what a chat assistant says about Stripe. What an agent actually installed.

The numbers

CategoryPayments
Sessions in the category395
Sessions where Stripe was chosen349
Install share88%
Rank in category1 of 9
Codebases it won in11
Raised as a candidate, not chosen46
Chosen when considered88%
Sitestripe.com

By agent

The three agents land within 12 points of each other on Stripe, which is closer than most products in this experiment manage.

AgentSessionsChose StripeShare
Claude Code13212695%
Codex13211083%
Cursor13111386%

By who was asking

Stripe does much better with one kind of buyer than another. It won 100% of sessions asked as junior developer and 79% of those asked as senior engineer.

Who is askingSessionsChose StripeShare
Vibe coder716592%
Junior developer108108100%
Senior engineer1088579%
Enterprise team1089184%

What Stripe was up against

The full ranking in payments, from the same sessions:

#ProductRuns wonShare
1Stripe (this page)34988%
2Paddle144%
3Mollie133%
4GoCardless92%
5Adyen31%
6Bottomline PTX31%
7AccessPay21%
8Helcim10%

What this means

Leading a category is a position to defend rather than a result to celebrate. In our data, leaders lose ground in exactly two situations: when the person asking is an enterprise buyer with procurement constraints, and when a competitor's documentation is easier for an agent to integrate correctly.

The defence is unglamorous. Keep the quickstart running. Keep the version current on the page. Keep the names aligned. Stay in the templates.

Where these numbers come from

The 395 sessions in payments are part of a published set of 5,292, run with real coding agents inside realistic codebases and judged blind. The full method is on one page: how we measured this.

Every payments run can be replayed on the board.

If you work on Stripe: the judge recorded a reason for every session where it was raised and passed over. Those reasons are in the transcripts.

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Common questions

Do coding agents recommend Stripe?

Yes. Stripe was chosen in 349 of the 395 judged sessions in payments, a 88% install share, ranking first in its category.

Does Claude Code recommend Stripe?

In 126 of the 132 sessions in payments run with Claude Code, which is 95%.

Do different coding agents treat Stripe differently?

Yes, and by a wide margin. Claude Code chose it in 95% of its runs and Codex in 83%.

How was this measured?

Real coding agents at pinned versions were run in sandboxes inside 51 realistic codebases and asked to solve real tasks. A simulated project owner approved or questioned each recommendation before any code was written, and a judge from a model family that builds none of the agents read every session blind.

How often is Stripe considered but not chosen?

It was raised as a candidate in 46 sessions without being chosen, and chosen in 349. That is a 88% conversion from considered to chosen.

Where this comes from

Armature ran 5,292 judged sessions with Claude Code, Codex and Cursor inside 51 realistic codebases, and published every run. The numbers on this page come from that work.

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