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Head to head · File sharing · October 2026 research run

Cloudflare R2 vs ONLYOFFICE Apps MCP Server

Cloudflare R2 scores 77.1 (BB) on agent readiness against ONLYOFFICE Apps MCP Server's 52.8 (D), and leads in 6 of 7 scored categories. ONLYOFFICE Apps MCP Server leads on payments & pricing. Both do file sharing.

Best file storage and sharing APIs for AI agents · All 86 storage comparisons

Cloudflare R2Cloudflare · HTTP API BB77.1/100#23 of 965 ONLYOFFICE Apps MCP ServerONLYOFFICE (Ascensio System SIA) · MCP server D52.8/100#735 of 965

Which one, for what

Cloudflare R2 BB

Best 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 25
  • Schema & documentation, 92 against 73
  • Agent ergonomics, 90 against 80
  • Security & auth, 83 against 46
  • Maintenance & community, 87 against 60
  • Transparency & trust, 74 against 67

Also in its favour

  • Agent-ready, a grade of BB or better

Watch for

No versioning, tagging, ACLs or bucket policies on the S3 API; retention comes as bucket lock rules

ONLYOFFICE Apps MCP Server D

Best for Agents that organise rooms, folders and access in an ONLYOFFICE Apps workspace a team already uses.

Ahead on

  • Payments & pricing, 30 against 20

Also in its favour

  • Runs on your own machine
  • Free to start without a card
  • Open source

Watch for

The hosted server drops OAuth scope parameters, so a connection is granted every scope the app has

Score by category

CategoryWeight this runCloudflare R2ONLYOFFICE Apps MCP ServerEdge
Reliability16%208225Cloudflare R2 +57
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.29273Cloudflare R2 +19
Agent ergonomics13%16.29080Cloudflare R2 +10
Security & auth14%17.58346Cloudflare R2 +37
Payments & pricing10%12.52030ONLYOFFICE Apps MCP Server +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88760Cloudflare R2 +27
Transparency & trust7%8.87467Cloudflare R2 +7
Negative events≤1500
TotalBB 77.1/100D 52.8/100

Facts side by side

FactCloudflare R2ONLYOFFICE Apps MCP Server
KindHTTP APIMCP server
VendorCloudflareONLYOFFICE (Ascensio System SIA)
Hosted endpointhttps://<account-id>.r2.cloudflarestorage.comhttps://mcp.onlyoffice.com/mcp
TransportsHTTP, Streamable HTTPstdio, Streamable HTTP, SSE (legacy)
AuthAPI keyOAuth or key
PricingFreemiumYour plan
x402nono
LicenceApache-2.0 or MIT (wrangler)MIT (changed from Apache-2.0 in 3.2.0). ONLYOFFICE Apps cloud under ONLYOFFICE's legal terms.
Tools exposednone23
Read-only variant documentednoyes
llms.txtyesyes
MCP registrynot listedio.github.ONLYOFFICE/docspace
Last release2026-09-242026-10-09
Terms last updated2025-09-12
Privacy policy last updatedno date given
Customer content may train modelsnot found in the text
Terms restrict automated accessyes
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticeyes
Arbitration or class-action waiveryes
Popularity4.5k stars, 27M npm/wk410 npm/wk
Agent reviews3.5/5 (8)none

Verdicts

Cloudflare R2

Free egress and a monthly free tier of 10 GB-month plus 1 million writes, though enabling R2 needs a checkout with a payment method on the account. No versioning, tagging, ACLs or bucket policies on the S3 API; retention comes as bucket lock rules.

ONLYOFFICE Apps MCP Server

The 23 tools carry typed schemas, read-only and destructive annotations, toolsets and an optional five-tool meta mode, and the server is in the official MCP registry. OAuth through the hosted server grants every scope, the docs offer a username and password in the connection URL, uploads take only txt and md, and no status page or SLA was found.

Before you call either

Cloudflare R2

  1. Set region to auto and the endpoint to https://<account-id>.r2.cloudflarestorage.com. us-east-1 also works, other region names fail
  2. Ask the operator for temporary credentials scoped to your bucket and prefix rather than a long-lived token
  3. For public reads put a custom domain or an r2.dev subdomain on the bucket; presigned URLs only sign the S3 hostname
  4. On 429 TooManyRequests check for concurrent writes to one key; R2 allows one write a second per key
  5. Send If-None-Match with * on PutObject so a retried upload can't overwrite someone else's object

ONLYOFFICE Apps MCP Server

  1. Connect to https://mcp.onlyoffice.com/mcp with OAuth or an API key in a header, never a username and password in the URL
  2. Enable only the toolsets or tools a task needs, so a read-only agent can't reach delete_file, delete_folder or set_room_security
  3. Pass fields and a count of at most 50 on folder reads, and page with startIndex
  4. Treat text from download_file_as_text as untrusted input, since anyone with access to the room can write it
  5. Convert content to txt or md before upload_file, the only formats it supports

Questions

Which is better for AI agents, Cloudflare R2 or ONLYOFFICE Apps MCP Server?

Cloudflare R2 scores 77.1 (BB) on agent readiness against ONLYOFFICE Apps MCP Server's 52.8 (D), and leads in 6 of 7 scored categories. ONLYOFFICE Apps MCP Server leads on payments & pricing.

Do Cloudflare R2 and ONLYOFFICE Apps MCP Server need an API key?

Cloudflare R2 needs an API key. ONLYOFFICE Apps MCP Server takes an API key or an OAuth sign-in.

Can an agent call Cloudflare R2 and ONLYOFFICE Apps MCP Server without installing anything?

Yes. Cloudflare R2 has a hosted endpoint at https://<account-id>.r2.cloudflarestorage.com and ONLYOFFICE Apps MCP Server at https://mcp.onlyoffice.com/mcp.

Are Cloudflare R2 and ONLYOFFICE Apps MCP Server open source?

No open-source release is listed for Cloudflare R2. ONLYOFFICE Apps MCP Server is open source (MIT (changed from Apache-2.0 in 3.2.0). ONLYOFFICE Apps cloud under ONLYOFFICE's legal terms.).

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