# What does ModelRiver use? ModelRiver (modelriver.com) shows public evidence of 22 tools, according to runsonwhat (last checked 2026-11-09). ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Email records, DNS records, Website code, Subprocessor list | | | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Subprocessor list | | | [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | Subprocessor list | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records, Subprocessor list | | | [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | Subprocessor list | | | [Stripe](https://www.runsonwhat.com/reverse/stripe) | Payments & Billing | Subprocessor list | | | [Supabase](https://www.runsonwhat.com/reverse/supabase) | Backend & Database | Subprocessor list | | | [PlanetScale](https://www.runsonwhat.com/reverse/planetscale) | Backend & Database | Subprocessor list | | | [Cohere](https://www.runsonwhat.com/reverse/cohere) | AI | Subprocessor list | | | [LangSmith](https://www.runsonwhat.com/reverse/langchain) | AI | Subprocessor list | | | [Pinecone](https://www.runsonwhat.com/reverse/pinecone) | AI | Subprocessor list | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code, Subprocessor list | | | [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code | | | [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Subprocessor list | | | [Datadog](https://www.runsonwhat.com/reverse/datadog) | Monitoring | Subprocessor list | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records | | | [Resend](https://www.runsonwhat.com/reverse/resend) | Email Delivery | Email records | | | [Zapier](https://www.runsonwhat.com/reverse/zapier) | Dev Tools | Subprocessor list | | | [GitHub](https://www.runsonwhat.com/reverse/github) | Dev Tools | Subprocessor list | | ## Recent changes at ModelRiver - 2026-10-09: started using [Anthropic](https://www.runsonwhat.com/reverse/anthropic) ## FAQ ### What tools does ModelRiver use? As of November 2026, runsonwhat has found 22 tools at ModelRiver (modelriver.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Microsoft Azure. Application: Anthropic, OpenAI and Stripe. Data & Observability: Google Analytics, Google Tag Manager and Sentry. Go-to-market: Google Ads. Company Ops: Google Workspace, Resend and Zapier. Last checked November 9, 2026. ### What cloud does ModelRiver run on? ModelRiver uses Amazon Web Services for hosting and cloud infrastructure, alongside Microsoft Azure, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through Amazon Web Services on modelriver.com's subprocessor list. Amazon Web Services is used by 147,634 companies runsonwhat tracks. ### What email provider does ModelRiver use? ModelRiver uses Google Workspace for email and office software, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 421,818 companies runsonwhat tracks. ### What payment provider does ModelRiver use? ModelRiver uses Stripe for payments and billing, according to runsonwhat (November 2026). runsonwhat found Stripe through Stripe on modelriver.com's subprocessor list. Stripe is used by 31,484 companies runsonwhat tracks. ### What analytics tools does ModelRiver use? ModelRiver uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on modelriver.com and its subprocessor list. Google Analytics is used by 904,065 companies runsonwhat tracks. ### What monitoring tools does ModelRiver use? ModelRiver uses Sentry for monitoring, alongside Datadog, according to runsonwhat (November 2026). runsonwhat found Sentry through Sentry on modelriver.com's subprocessor list. Sentry is used by 80,134 companies runsonwhat tracks. ### Does ModelRiver use Cloudflare? Yes. runsonwhat found Cloudflare at ModelRiver through email records that authorize Cloudflare and DNS records. Cloudflare is a CDN & Edge tool used by 735,420 companies runsonwhat tracks. ### Does ModelRiver use AI tools? Yes. runsonwhat has found Anthropic, OpenAI, Cohere and LangSmith at ModelRiver; Anthropic, for example, through a DNS verification record for Anthropic and its subprocessor list. AI services called only from servers leave no public trace, so ModelRiver may use more AI tools than these. ### Has ModelRiver changed tools recently? Yes. On runsonwhat's rechecks, ModelRiver started using Anthropic (latest on October 9, 2026). A change counts only between two checks of modelriver.com done the same way. ### Which companies have a tech stack similar to ModelRiver's? The companies with the stacks most like ModelRiver's are Midpage, Writesonic, Linear and Turtle Techsai, according to runsonwhat (November 2026). Each shares 12 to 17 tools with ModelRiver, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what ModelRiver uses? runsonwhat reads public records only. Of the 22 tools at ModelRiver, 13 were found through its own subprocessor list, 3 through code on modelriver.com, 3 through email records, 2 through DNS records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and modelriver.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/modelriver.com (updated November 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.