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  "markdown": "Co-founder, American Express (1850).\n\nJohn Warren Butterfield co-founded American Express in Buffalo, New York, in 1850, merging his express company, Butterfield, Wasson \u0026 Company, with those of Henry Wells and William G. Fargo.\n\n## What John builds\n\n- [American Express Agentic Commerce Experiences (ACE)](https://www.anchorterminal.com/tools/amex-ace.md), graded F, 25.7/100, in Agent checkout protocols. American Express's Agentic Commerce Experiences (ACE) developer kit lets verified AI agents pay with scoped, tokenised Amex card credentials against a purchase intent the Card Member approves. Access needs an application and agreements with American Express. Co-founder, American Express (1850), researched 2026-10-28.\n\n## Works with\n\n- [Henry Wells](https://www.anchorterminal.com/people/henry-wells/), Co-founder, American Express (1850)\n- [Luke Gebb](https://www.anchorterminal.com/people/luke-gebb/), Executive Vice President and Head of Global Innovation, American Express\n- [Matthew Robinson](https://www.anchorterminal.com/people/matthew-robinson/), EVP, Payment Network and Acquiring Solutions, American Express\n- [Ravi Radhakrishnan](https://www.anchorterminal.com/people/ravi-radhakrishnan/), Chief Information Officer, American Express\n- [Stephen J. Squeri](https://www.anchorterminal.com/people/stephen-j-squeri/), Chairman and Chief Executive Officer, American Express\n- [William G. Fargo](https://www.anchorterminal.com/people/william-g-fargo/), Co-founder, American Express (1850)\n\n## Questions\n\n### Who is John Warren Butterfield?\n\nJohn Warren Butterfield co-founded American Express in Buffalo, New York, in 1850, merging his express company, Butterfield, Wasson \u0026 Company, with those of Henry Wells and William G. Fargo.\n\n### What does American Express make?\n\nAnchor Terminal lists American Express Agentic Commerce Experiences (ACE) from American Express. American Express's Agentic Commerce Experiences (ACE) developer kit lets verified AI agents pay with scoped, tokenised Amex card credentials against a purchase intent the Card Member approves. Access needs an application and agreements with American Express.\n\n### How are John's tools graded?\n\nAmerican Express Agentic Commerce Experiences (ACE) is graded F, 25.7 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://www.americanexpress.io/shaping-the-future-of-agentic-commerce/\n- https://www.linkedin.com/in/matthewrobinson-amex\n- https://www.americanexpress.com/en-gb/\n- https://www.americanexpress.com/en-us/newsroom/articles/innovation/what-sets-american-express-apart-in-the-age-of-agentic-commerce.html/\n- https://developer.americanexpress.com/products/nextgen-agentic-payments/overview\n- https://developer.americanexpress.com/support\n- https://www.americanexpress.com/uk/contact-us/?inav=en_gb_footer_company_information_contact_us\n- https://en.wikipedia.org/wiki/American_Express\n- https://en.wikipedia.org/wiki/Henry_Wells\n- https://en.wikipedia.org/wiki/William_Fargo\n- https://en.wikipedia.org/wiki/John_Butterfield_(businessman)\n\nThese are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.\n",
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