# What does Arcadia Age API use?

Arcadia Age API (a3api.io) shows public evidence of 10 tools, according to runsonwhat (last checked 2026-10-09).

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code |  |
| [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Subprocessor list |  |
| [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Website code |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code |  |
| [Stripe](https://www.runsonwhat.com/reverse/stripe) | Payments & Billing | Subprocessor list |  |
| [Auth0](https://www.runsonwhat.com/reverse/auth0) | Auth & Identity | Custom domain |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |
| [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | Email records |  |

## FAQ

### What tools does Arcadia Age API use?

As of October 2026, runsonwhat has found 10 tools at Arcadia Age API (a3api.io) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon CloudFront. Application: Next.js, Stripe and Auth0. Company Ops: Google Workspace and Amazon SES. Last checked October 9, 2026.

### What cloud does Arcadia Age API run on?

Arcadia Age API uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services on a3api.io's subprocessor list. Amazon Web Services is used by 144,594 companies runsonwhat tracks.

### What email provider does Arcadia Age API use?

Arcadia Age API uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 395,452 companies runsonwhat tracks.

### What payment provider does Arcadia Age API use?

Arcadia Age API uses Stripe for payments and billing, according to runsonwhat (October 2026). runsonwhat found Stripe through Stripe on a3api.io's subprocessor list. Stripe is used by 25,970 companies runsonwhat tracks.

### What does Arcadia Age API use for login and identity?

Arcadia Age API uses Auth0 for sign-in and identity, according to runsonwhat (October 2026). runsonwhat found Auth0 through a subdomain that points at Auth0. Auth0 is used by 5,432 companies runsonwhat tracks.

### Does Arcadia Age API use Cloudflare?

Yes. runsonwhat found Cloudflare at Arcadia Age API through DNS records that point at Cloudflare and code on a3api.io. Cloudflare is a CDN & Edge tool used by 689,775 companies runsonwhat tracks.

### Which companies have a tech stack similar to Arcadia Age API's?

The companies with the stacks most like Arcadia Age API's are Apollo Brillen & Kontaktlinsen, Shared Research, Aihr | Academy To Innovate HR and RØDE, according to runsonwhat (October 2026). Each shares 4 to 5 tools with Arcadia Age API, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Arcadia Age API uses?

runsonwhat reads public records only. Of the 10 tools at Arcadia Age API, 2 were found through DNS records, 2 through email records, 2 through its own subprocessor list, 2 through code on a3api.io, 1 through website configuration files and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and a3api.io about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/a3api.io (updated October 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.