Key points
- Anthropic job ad asks an engineer to make build-vs-buy calls
- Stripe's case study shows how extensively Anthropic relies on its products
- Adyen (ADYEY) signed OpenAI as a customer last month
Anthropic is weighing how much of its billing, fraud, payments and tax infrastructure to build itself instead of buying, The Information reported, citing recent job postings. The Information said Stripe remains a strong partner and that there's no sign Anthropic plans to drop outside processors entirely.
One of those postings is public. Anthropic is hiring a Staff Software Engineer for its Billing Platform team, in San Francisco, New York or Seattle, at $320,000 to $405,000. The listing puts the question in the company's own words. The engineer will "make build-vs-buy calls," and the ad adds: "We lean heavily on third-party billing, payment, and tax platforms, and you'll decide where to extend them and where to build our own primitives."
The same posting hands that engineer the payments stack, described as "authorization rates and retry logic so a good card doesn't silently decline, processing cost as a real number you drive down, automated dispute response, and fraud controls." Most of those are things a processor normally sells you, though plenty of companies build their own retry, routing and cost-optimization layers.
How much there is to insource is easiest to see from Stripe's side. Stripe's Anthropic case study describes a broad deployment that includes Payments, Invoicing, Billing, Metronome, Elements, Link, Data Pipeline, Radar, payments analytics and Organizations. Those cover checkout, subscriptions, usage-based billing, invoicing, fraud screening and the revenue data feed.
The case study also quotes four Anthropic employees by name. Daniela Amodei, the president and cofounder, says the company counts on Stripe "[for] scaling our business, so we can focus on innovating and serving our customers." A finance systems product manager, Logan Kreutziger, says Stripe's Data Pipeline "gives us more confidence in the security and completeness of our data over a third-party vendor, as it's a direct, Stripe-owned pipeline."
One of the four is Shaa Alagumuthu, whose title on the case study is engineering manager of the Billing Platform, the team now advertising for someone to decide what stays bought.
Anthropic isn't the only lab revisiting its payment vendors. Adyen (ADYEY) told investors at its half-year results in August that it had signed OpenAI as a customer. Adyen named the win in its H1 2026 results, and JPMorgan analysts called it an unexpected positive for the Dutch processor, Reuters reported on August 13. Adding Adyen alongside Stripe and building your own primitives are different moves, but both start from the same place: consumer subscription revenue at a scale that makes payment costs worth an engineer's salary.
Stripe offers no direct public-market exposure because it remains private. Adyen trades in Amsterdam, and its US ADR last traded at $11.88 at 12:47 p.m. Eastern on Friday, September 4, against a Thursday close of $12.05, per Robinhood market data. It's a thin listing, and one AI customer isn't a thesis.
Anthropic hasn't said it's leaving Stripe, and the job posting doesn't name Stripe once. What it names is a decision that hasn't been made yet.
