# What fintech companies use for Agent frameworks & AI gateways usedby lists 16 Fintech & Payments companies using 10 Agent frameworks & AI gateways tools. The most used is LangChain: 4 of the 16 Fintech & Payments companies on usedby, every proof level counted. These are counts of the companies usedby tracks, not a market share. Data as of 2026-11-04. ## Largest and best-proven users Two labelled views of the same companies. Neither is a score. ### Largest companies By employee range. Size known for 10 of 16. | Company | Proof | Employees | Tools | Last check | |---|---|---|---|---| | [Experian](https://www.usedby.ai/companies/experian.md) | Observed | 10,001+ | CrewAI | 2026-11-02 | | [Nubank](https://www.usedby.ai/companies/nubank.md) | Observed | 10,001+ | LangChain | 2026-10-31 | | [Intuit](https://www.usedby.ai/companies/intuit.md) | Observed | 10,001+ | Manufact | 2026-10-30 | ### Strongest proof Confirmed or declared: 1 of 16. This view filters what you read, never what is counted. | Company | Proof | Employees | Tools | Last check | |---|---|---|---|---| | [Aviva Credito](https://www.usedby.ai/companies/aviva-credito.md) | Confirmed | 51–200 | TrueFoundry | 2026-11-01 | ## Ranking Tools ranked by the companies of the 16 Fintech & Payments companies on usedby that use them. Each company counts once per tool, at its strongest proof. Ties go to more confirmed, then declared, then observed companies. | # | Tool | Companies | Confirmed | Declared | Observed | Job posts only | Last check | |---|---|---|---|---|---|---|---| | 1 | [LangChain](https://www.usedby.ai/tools/langchain.md) | 4 | 0 | 0 | 4 | 0 | 2026-10-31 | | 2 | [Browserbase](https://www.usedby.ai/tools/browserbase.md) | 3 | 0 | 0 | 3 | 0 | 2026-11-02 | | 3 | [Flowise](https://www.usedby.ai/tools/flowise.md) | 2 | 0 | 0 | 2 | 0 | 2026-11-03 | | 4 | [TrueFoundry](https://www.usedby.ai/tools/truefoundry.md) | 1 | 1 | 0 | 0 | 0 | 2026-11-01 | | 5 | [AgentMail](https://www.usedby.ai/tools/agentmail.md) | 1 | 0 | 0 | 1 | 0 | 2026-10-31 | | 6 | [CrewAI](https://www.usedby.ai/tools/crewai.md) | 1 | 0 | 0 | 1 | 0 | 2026-11-02 | | 7 | [Kernel](https://www.usedby.ai/tools/kernel.md) | 1 | 0 | 0 | 1 | 0 | 2026-10-30 | | 8 | [Manufact](https://www.usedby.ai/tools/manufact.md) | 1 | 0 | 0 | 1 | 0 | 2026-10-30 | | 9 | [Mindset AI](https://www.usedby.ai/tools/mindset.md) | 1 | 0 | 0 | 1 | 0 | 2026-11-04 | | 10 | [Portkey](https://www.usedby.ai/tools/portkey.md) | 1 | 0 | 0 | 1 | 0 | 2026-11-02 | ## Customers per tool Every line is a customer, at one of three proof levels: confirmed (a case study, a named quote, a press release, or the company's own public account of using the tool (its own site, or a post by one of its executives, VP or above)), observed (the vendor shows the company on its own pages) or signal (a job post shows the company's employees use the tool, the weakest proof). A line the company declared to usedby itself, or that it lists as a sub-processor on its own legal page, is marked declared. A signal is never a case study or a vendor listing. Strongest proof first. "Last check" is the later of the line's re-verification and its latest capture. | Tool | Company | Proof | Source | Last check | |---|---|---|---|---| | LangChain | [Stripe](https://www.usedby.ai/companies/stripe.md) | Observed | [langchain.com](https://www.langchain.com/customers), captured 2026-10-31 | 2026-10-31 | | LangChain | [Klarna](https://www.usedby.ai/companies/klarna.md) | Observed | [langchain.com](https://www.langchain.com/customers), captured 2026-10-31 | 2026-10-31 | | LangChain | [Modern Treasury](https://www.usedby.ai/companies/modern-treasury.md) | Observed | [langchain.com](https://www.langchain.com/customers), captured 2026-10-03 | 2026-10-03 | | LangChain | [Nubank](https://www.usedby.ai/companies/nubank.md) | Observed | [langchain.com](https://www.langchain.com/customers), captured 2026-10-31 | 2026-10-31 | | Browserbase | [Ramp](https://www.usedby.ai/companies/ramp.md) | Observed | [browserbase.com](https://www.browserbase.com/customer-stories), captured 2026-11-02 | 2026-11-02 | | Browserbase | [Benny](https://www.usedby.ai/companies/benny.md) | Observed | [browserbase.com](https://www.browserbase.com/pricing), captured 2026-11-02 | 2026-11-02 | | Browserbase | [Parcha](https://www.usedby.ai/companies/parcha.md) | Observed | [browserbase.com](https://www.browserbase.com/customer-stories), captured 2026-11-02 | 2026-11-02 | | Flowise | [InsightSoftware](https://www.usedby.ai/companies/insightsoftware.md) | Observed | [flowiseai.com](https://flowiseai.com/), captured 2026-11-03 | 2026-11-03 | | Flowise | [Deriv](https://www.usedby.ai/companies/deriv.md) | Observed | [flowiseai.com](https://flowiseai.com/), captured 2026-11-03 | 2026-11-03 | | TrueFoundry | [Aviva Credito](https://www.usedby.ai/companies/aviva-credito.md) | Confirmed | [truefoundry.com](https://www.truefoundry.com/case-study/how-aviva-centralized-control-cost-and-velocity-across-multi-cloud-llms-with-truefoundry-ai-gateway), captured 2026-10-06 | 2026-11-01 | | AgentMail | [Salient](https://www.usedby.ai/companies/salient.md) | Observed | [agentmail.to](https://www.agentmail.to/), captured 2026-10-31 | 2026-10-31 | | CrewAI | [Experian](https://www.usedby.ai/companies/experian.md) | Observed | [crewai.com](https://crewai.com/pricing), captured 2026-11-02 | 2026-11-02 | | Kernel | [Cash App](https://www.usedby.ai/companies/cash-app.md) | Observed | [kernel.sh](https://www.kernel.sh/pricing), captured 2026-10-30 | 2026-10-30 | | Manufact | [Intuit](https://www.usedby.ai/companies/intuit.md) | Observed | [manufact.com](https://manufact.com/), captured 2026-10-30 | 2026-10-30 | | Mindset AI | [Clearco](https://www.usedby.ai/companies/clearco.md) | Observed | [mindset.ai](https://www.mindset.ai/customer-stories), captured 2026-11-04 | 2026-11-04 | | Portkey | [Figg](https://www.usedby.ai/companies/figg.md) | Observed | [portkey.ai](https://portkey.ai/), captured 2026-11-02 | 2026-11-02 | ## Method Public customer lines of active Agent frameworks & AI gateways tools at companies classified in Fintech & Payments. No software vendor had to be left out. Company mix by strongest proof: 1 confirmed, 0 declared, 15 observed and 0 signals. ## Questions ### Which Agent frameworks & AI gateways tools do Fintech & Payments companies use most? LangChain leads: 4 of the 16 Fintech & Payments companies on usedby that use Agent frameworks & AI gateways tools use it. Next: Browserbase (3), Flowise (2), TrueFoundry (1), and AgentMail (1). ### How many Fintech & Payments companies use Agent frameworks & AI gateways tools? 16 Fintech & Payments companies on usedby use at least one of 10 Agent frameworks & AI gateways tools. It counts the companies usedby tracks. ### What proof backs these lines? Of the 16 companies, each counted at its strongest proof: 1 confirmed, 0 declared, 15 observed and 0 known from a job post. ### How does usedby build this ranking? usedby counts each Fintech & Payments 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. Every line shows its proof and the date usedby last checked it. Agent frameworks & AI gateways across all of Finance: [Finance](https://www.usedby.ai/companies/industry/finance/llm-ops-frameworks.md) (28) Industry page: https://www.usedby.ai/companies/industry/fintech-payments.md · Category page: https://www.usedby.ai/tools/category/llm-ops-frameworks.md --- Source: https://www.usedby.ai/companies/industry/fintech-payments/llm-ops-frameworks · How we check: https://www.usedby.ai/methodology