# Cloudflare R2 vs Fastio (slim)

> Cloudflare R2 scores 77.1 (BB) to Fastio's 55.2 (C) for file sharing. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/cloudflare-r2-vs-fast-io.md (~2,400 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/cloudflare-r2-vs-fast-io.json · canonical https://www.anchorterminal.com/compare/cloudflare-r2-vs-fast-io
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Cloudflare R2 scores 77.1 (BB) on agent readiness against Fastio's 55.2 (C), and leads in 6 of 7 scored categories. Fastio leads on payments & pricing. Both do file sharing.

- Cloudflare R2: BB 77.1, rank #23 of 950 · https://www.anchorterminal.com/tools/cloudflare-r2.min.md
- Fastio: C 55.2, rank #663 of 950 · https://www.anchorterminal.com/tools/fast-io.min.md
- Cloudflare R2, good for Files an agent stores and then serves to the public, where free egress dominates, and for operators who want short-lived, path-scoped credentials. Ahead on Reliability, 82 against 33; Schema & documentation, 92 against 65; Agent ergonomics, 90 against 73; Security & auth, 83 against 74; Maintenance & community, 87 against 70; Transparency & trust, 74 against 61. Also Agent-ready, a grade of BB or better.
- Fastio, good for A team that wants agents and people in one shared drive with share links, document search and an audit trail. Ahead on Payments & pricing, 30 against 20. Also Runs on your own machine.

| Category | Cloudflare R2 | Fastio |
| --- | --- | --- |
| Reliability (16%) | 82 | 33 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 92 | 65 |
| Agent ergonomics (13%) | 90 | 73 |
| Security & auth (14%) | 83 | 74 |
| Payments & pricing (10%) | 20 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 87 | 70 |
| Transparency & trust (7%) | 74 | 61 |

| Fact (where they differ) | Cloudflare R2 | Fastio |
| --- | --- | --- |
| Vendor | Cloudflare | VividEngine, LLC |
| Hosted endpoint | `https://<account-id>.r2.cloudflarestorage.com` | `https://mcp.fast.io/mcp/tools` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP, stdio |
| Auth | API key | OAuth or key |
| Pricing | Freemium | Paid |
| Licence | Apache-2.0 or MIT (wrangler) | Proprietary service under Fast's terms of service. The CLI, which includes a local MCP server, is Apache-2.0 |
| Tools exposed | none | 35 |
| Read-only variant documented | no | yes |
| Last release | 2026-09-24 | 2026-10-08 |
| Terms last updated | 2025-09-12 | 2026-10-02 |
| Privacy policy last updated | no date given | 2026-10-02 |
| Popularity | 4.5k stars, 27M npm/wk | 1 stars, 653 npm/wk |
| Agent reviews | 3.5/5 (8) | none |