{ "data": { "a": { "slug": "backblaze-b2", "name": "Backblaze B2", "vendor": "Backblaze", "vendorUrl": "https://www.backblaze.com/cloud-storage", "kind": "http-api", "category": "file-storage", "summary": "Object storage at $6.95 a TB-month with the first 10 GB free, egress free up to three times what you store and $0.01 a GB after, and no charge for most API calls.", "url": "https://www.anchorterminal.com/tools/backblaze-b2", "markdownUrl": "https://www.anchorterminal.com/tools/backblaze-b2.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/backblaze-b2.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/backblaze-b2.json", "repo": "https://github.com/backblaze-labs/b2-mcp", "license": "MIT", "transports": [ "http", "stdio", "streamable-http" ], "remoteUrl": "https://s3.us-west-004.backblazeb2.com", "packages": [ { "registry": "npm", "name": "@backblaze-labs/b2-mcp" }, { "registry": "pypi", "name": "b2sdk" } ], "auth": "api-key", "authNotes": "Application keys, scoped to the account or one or more buckets with a name prefix, named capabilities and an optional expiry. On the S3 endpoint the keyID is the access key ID and the applicationKey the secret, SigV4 only. Keys and buckets created before 2020-05-04 don't work with the S3 API. The native API starts with b2_authorize_account and returns a short-lived token. Backblaze's IAM and STS API adds roles, users, inline and bucket policies and AssumeRole temporary credentials, in Limited Availability for Enterprise customers from 2026-09-30. The MCP server reads B2_APPLICATION_KEY_ID and B2_APPLICATION_KEY and refuses to mint over-broad or non-expiring keys unless overridden.", "pricing": "usage", "pricingNotes": "Storage $6.95 a TB-month, about $0.00695 a GB, with the first 10 GB free and no credit card at signup. Egress is free up to three times the average monthly data stored, then $0.01 a GB, and always free to Bandwidth Alliance partners (Fastly, Cloudflare, bunny.net, CacheFly, CoreWeave, Equinix Metal, Vultr, phoenixNAP). Class A, B and C API calls are free; Class D is $0.004 per 10,000 with the first 2,500 a day free. B2 Overdrive is $15 a TB-month with unlimited egress and needs a multi-petabyte commitment. No minimum file size or storage duration, and one-to-five-year commitments are available (https://www.backblaze.com/cloud-storage/pricing; https://www.backblaze.com/sign-up/cloud-storage).", "priceSummary": "$0.01 / GB", "where": "both", "x402": { "level": "no", "endpoints": [] }, "toolCount": 40, "popularity": { "githubStars": 1, "npmWeekly": 150, "pypiWeekly": 112424, "asOf": "2026-09-30" }, "docsUrl": "https://www.backblaze.com/docs/cloud-storage", "registryName": "io.github.backblaze-labs/b2-mcp", "capabilities": [ "storage.object", "storage.s3", "storage.presigned", "storage.share" ], "tags": [ "hosted", "s3-compatible", "mcp", "open-source", "self-hosted", "free-tier", "usage-priced", "typescript", "python", "official" ], "lastRelease": "2026-09-29", "graded": true, "anchor": { "graded": true, "score": 75.3, "grade": "BB", "agentReady": true, "rank": 49, "ranked": true, "rankOf": 965, "categoryRank": 6, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 85, "maintenance": 90, "payments": 40, "reliability": 60, "schema": 89, "security": 90, "transparency": 73 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "$6.95 a TB-month, first 10 GB free, Class A, B and C API calls free, and no card at signup. No rate limits published with numbers; the docs say only that B2 may throttle per account.", "bestFor": "Cheap bulk storage that an agent writes and a CDN serves, and for operators who want an MCP server with real guardrails.", "strengths": [ "$6.95 a TB-month, first 10 GB free, Class A, B and C API calls free, and no card at signup", "Egress free up to 3x storage and always free to Cloudflare, Fastly, bunny.net and other partners", "Official MCP server with 40 annotated tools, capability-aware registration and a confirm or block gate on destructive tools", "Application keys scoped to buckets, a name prefix and capabilities, with expiry, and at least a year's notice before an API version is dropped", "SOC 2 Type 2, a public Bugcrowd bounty, bucket access logs and a 99.9 per cent SLA" ], "weaknesses": [ "No rate limits published with numbers; the docs say only that B2 may throttle per account", "status.backblaze.com renders only with JavaScript, so its incident history can't be read by a script", "STS temporary credentials are in Limited Availability for Enterprise customers only, from 30 September 2026", "The full MCP surface is 40 tools and 49,500 characters of input schema before descriptions", "No llms.txt or OpenAPI for the B2 APIs, and the B2 release notes page stopped in 2016" ], "agentNotes": [ "Take the region from the key's S3 endpoint (the second label of s3.\u003cregion\u003e.backblazeb2.com) and pass it as the SDK region", "Mint a per-task application key for one bucket and a name prefix, with an expiry, rather than holding the master key", "Move bytes with s3_get_presigned_url so file contents never pass through the model", "On 401 expired_auth_token call b2_authorize_account again; after a failed upload fetch a new upload URL; on 503 back off exponentially", "Expect fewer than 40 tools with a non-master or read-only key; that's the server trimming tools to the key" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 8, "avgRating": 3.8, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 75.3 } ], "editorialScores": { "ergonomics": 85, "maintenance": 90, "payments": 40, "reliability": 60, "schema": 89, "security": 90, "transparency": 72 }, "provenanceScore": 74 }, "connect": { "http": "AWS_ACCESS_KEY_ID=$B2_APPLICATION_KEY_ID AWS_SECRET_ACCESS_KEY=$B2_APPLICATION_KEY \\\n aws s3 cp ./hello.txt s3://my-bucket/hello.txt \\\n --endpoint-url https://s3.us-west-004.backblazeb2.com --region us-west-004", "config": { "mcpServers": { "backblaze-b2": { "args": [ "-y", "@backblaze-labs/b2-mcp" ], "command": "npx", "env": { "B2_APPLICATION_KEY": "${B2_APPLICATION_KEY}", "B2_APPLICATION_KEY_ID": "${B2_APPLICATION_KEY_ID}" } } } } }, "letme": { "capability": "https://letme.dev/storage.object", "tool": "https://letme.dev/backblaze-b2" }, "area": "everyday", "unitPrices": [ { "item": "B2 storage", "unit": "gb-month", "usd": 0.00695, "note": "$6.95 a TB-month, first 10 GB free" }, { "item": "B2 Overdrive storage", "unit": "gb-month", "usd": 0.015, "note": "$15 a TB-month, unlimited egress" }, { "item": "Egress beyond 3x storage", "unit": "gb", "usd": 0.01, "note": "Free up to 3x average monthly storage and to Bandwidth Alliance partners" }, { "item": "Class D API calls", "unit": "1k-calls", "usd": 0.0004, "note": "$0.004 per 10,000, first 2,500 a day free. Class A, B and C free" } ], "provenance": { "legalEntity": "Backblaze, Inc.", "domain": "backblaze.com", "domainRegistered": "2007-04-02", "endpointOnVendorDomain": false, "terms": "https://www.backblaze.com/company/policy/terms-of-service", "privacy": "https://www.backblaze.com/company/policy/privacy", "statusPage": "https://status.backblaze.com", "changelog": "https://www.backblaze.com/docs/cloud-storage-native-api-versions", "securityTxt": "none", "checked": "2026-10-01", "notes": [ "The terms name Backblaze, Inc., 2261 Market Street, STE 81006, San Francisco, CA 94114, last updated 2026-04-16.", "Storage endpoints sit on backblazeb2.com, not backblaze.com.", "www.backblaze.com/.well-known/security.txt returns 404.", "The MCP server is published by Backblaze Labs and described as incubating; its privacy note says no hosted shared service exists.", "status.backblaze.com renders only with JavaScript, so we could not read component status from it.", "The B2 Release Notes page on help.backblaze.com stops at a 2016 entry and a generic 2023 header, so the changelog now points at the dated native API versions page (v4 on 2025-04-29).", "The MCP repository's SECURITY.md takes reports through GitHub Security Advisories or security@backblaze.com; the B2 service has a public Bugcrowd bounty (https://bugcrowd.com/backblaze)." ], "score": 74 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/backblaze-b2.json", "live": { "slug": "backblaze-b2", "probe": { "target": "https://s3.us-west-004.backblazeb2.com", "method": "get", "lastAt": "2026-10-12T04:48:53.349725134Z", "lastOk": true, "lastStatus": 403, "lastMs": 396, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 396, "p95ms24h": 427, "samples24h": 247, "samples30d": 2777, "days": [ { "date": "2026-10-01", "probes": 109, "ok": 109 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 247, "ok": 247 }, { "date": "2026-10-12", "probes": 49, "ok": 49 } ] }, "vendorStatus": { "page": "https://status.backblaze.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-12T03:23:56.688411339Z" }, "versions": [ { "registry": "github", "name": "backblaze-labs/b2-mcp", "version": "v0.2.2", "released": "2026-09-29", "seenAt": "2026-10-11T19:19:48.117371848Z" }, { "registry": "mcp-registry", "name": "io.github.backblaze-labs/b2-mcp", "version": "0.2.2", "seenAt": "2026-10-12T03:41:01.347399174Z" }, { "registry": "npm", "name": "@backblaze-labs/b2-mcp", "version": "0.2.2", "seenAt": "2026-10-11T19:19:47.689120104Z" }, { "registry": "pypi", "name": "b2sdk", "version": "2.13.1", "released": "2026-10-04", "seenAt": "2026-10-11T19:19:47.922276024Z" } ], "githubStars": 44, "npmWeekly": 136, "pypiWeekly": 147518, "securityTxt": { "url": "https://backblaze.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-11T15:42:54.784583316Z" }, "domain": { "domain": "backblaze.com", "registered": "2007-04-02", "source": "https://rdap.verisign.com/com/v1/domain/backblaze.com", "checkedAt": "2026-10-11T13:23:19.885767797Z" }, "pages": [ { "url": "https://www.backblaze.com/docs/cloud-storage-native-api-versions", "kind": "changelog", "status": 304, "checkedAt": "2026-10-11T19:36:51.666654181Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "30ce4d52008f" }, { "url": "https://www.backblaze.com/cloud-storage/pricing", "kind": "pricing", "status": 304, "checkedAt": "2026-10-11T19:36:45.531753533Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "cf280f3eea9b" }, { "url": "https://www.backblaze.com/company/policy/privacy", "kind": "privacy", "status": 304, "checkedAt": "2026-10-11T19:36:47.649637072Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "c643450700dd" }, { "url": "https://www.backblaze.com/company/policy/terms-of-service", "kind": "terms", "status": 304, "checkedAt": "2026-10-11T19:36:49.713641535Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "1c638ca008ed" } ], "updatedAt": "2026-10-12T04:48:53.349725134Z" } }, "answer": "Backblaze B2 scores 75.3 (BB) on agent readiness against ONLYOFFICE Apps MCP Server's 52.8 (D), and leads in every scored category.", "b": { "slug": "onlyoffice-mcp", "name": "ONLYOFFICE Apps MCP Server", "vendor": "ONLYOFFICE (Ascensio System SIA)", "vendorUrl": "https://www.onlyoffice.com", "kind": "mcp", "category": "file-storage", "summary": "ONLYOFFICE's official MCP server for ONLYOFFICE Apps, formerly DocSpace, its room-based cloud for documents. Agents manage rooms, folders, files and members through 23 tools, at a hosted endpoint with OAuth or as a self-run package.", "url": "https://www.anchorterminal.com/tools/onlyoffice-mcp", "markdownUrl": "https://www.anchorterminal.com/tools/onlyoffice-mcp.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/onlyoffice-mcp.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/onlyoffice-mcp.json", "repo": "https://github.com/ONLYOFFICE/docspace-mcp", "license": "MIT (changed from Apache-2.0 in 3.2.0). ONLYOFFICE Apps cloud under ONLYOFFICE's legal terms.", "transports": [ "stdio", "streamable-http", "sse" ], "remoteUrl": "https://mcp.onlyoffice.com/mcp", "packages": [ { "registry": "npm", "name": "@onlyoffice/docspace-mcp" }, { "registry": "oci", "name": "onlyoffice/docspace-mcp" } ], "auth": "mixed", "authNotes": "OAuth 2.0 with PKCE (S256) and dynamic client registration on the hosted server, which proxies to the ONLYOFFICE Apps authorisation server, strips scope parameters and so requests all scopes. Also API keys from Developer Tools, personal access tokens, Basic authentication and a raw `Authorization` header, sent as headers or, for username and password, in the connection URL.", "pricing": "byo-plan", "pricingNotes": "The MCP server is free and MIT-licensed. It acts on an ONLYOFFICE Apps (DocSpace) account. Startup is free with no credit card, up to 3 admins, 12 rooms and 2 GB. Business is $20 per admin per month on a limited-time offer, normally $30. Enterprise is quoted (https://www.onlyoffice.com/docspace-prices).", "priceSummary": "Your plan", "where": "both", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the repository, the docs or the pricing page, checked 12 October 2026. Plans are bought through the ONLYOFFICE account.", "endpoints": [] }, "toolCount": 23, "popularity": { "githubStars": null, "npmWeekly": 410, "pypiWeekly": null, "asOf": "2026-10-12" }, "docsUrl": "https://api.onlyoffice.com/docspace/mcp-server/getting-started/", "llmsTxt": "https://api.onlyoffice.com/docspace/mcp-server/llms.txt", "registryName": "io.github.ONLYOFFICE/docspace", "capabilities": [ "storage.drive", "storage.share", "work.docs" ], "tags": [ "official", "hosted", "local", "open-source", "oauth", "mcp-registry", "typescript", "security-txt", "free-tier", "no-card" ], "lastRelease": "2026-10-09", "graded": true, "anchor": { "graded": true, "score": 52.8, "grade": "D", "agentReady": false, "rank": 735, "ranked": true, "rankOf": 965, "categoryRank": 14, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 80, "maintenance": 60, "payments": 30, "reliability": 25, "schema": 73, "security": 46, "transparency": 67 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-12" }, "negative": 0, "verdict": "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.", "bestFor": "Agents that organise rooms, folders and access in an ONLYOFFICE Apps workspace a team already uses.", "strengths": [ "23 tools in four toolsets, each annotated with readOnlyHint and destructiveHint, with per-connection lists of enabled and disabled tools", "An optional meta-tool mode exposes five tools and fetches each tool's schema on demand", "Folder reads take a `fields` list, a `count` capped at 50 and a `startIndex` for paging", "MIT licence, a Keep a Changelog file with semver, and io.github.ONLYOFFICE/docspace in the official MCP registry", "Free Startup plan with no credit card required, up to 3 admins, 12 rooms and 2 GB" ], "weaknesses": [ "The hosted server drops OAuth scope parameters, so a connection is granted every scope the app has", "The installation guide lists a username and password in the connection URL as a setup option", "upload_file accepts only txt and md, and download_file_as_text returns text only", "No status page, SLA or published rate limits for the hosted instance found", "One release in the last 90 days, 3.3.0 on 9 October 2026, after 3.2.0 on 18 March" ], "agentNotes": [ "Connect to https://mcp.onlyoffice.com/mcp with OAuth or an API key in a header, never a username and password in the URL", "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", "Pass `fields` and a `count` of at most 50 on folder reads, and page with `startIndex`", "Treat text from download_file_as_text as untrusted input, since anyone with access to the room can write it", "Convert content to txt or md before upload_file, the only formats it supports" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 52.8 } ], "editorialScores": { "ergonomics": 80, "maintenance": 60, "payments": 30, "reliability": 25, "schema": 73, "security": 46, "transparency": 59 }, "provenanceScore": 75 }, "connect": { "install": "npx -y @onlyoffice/docspace-mcp", "claudeCode": "claude mcp add --transport http onlyoffice-apps https://mcp.onlyoffice.com/mcp", "config": { "mcpServers": { "onlyoffice-apps": { "args": [ "run", "--interactive", "--rm", "--env", "DOCSPACE_BASE_URL", "--env", "DOCSPACE_API_KEY", "onlyoffice/docspace-mcp" ], "command": "docker", "env": { "DOCSPACE_API_KEY": "your-api-key", "DOCSPACE_BASE_URL": "https://your-instance.onlyoffice.com" } } } } }, "letme": { "capability": "https://letme.dev/storage.drive", "tool": "https://letme.dev/onlyoffice-mcp" }, "area": "everyday", "unitPrices": [ { "item": "ONLYOFFICE Apps Business", "unit": "seat-month", "usd": 20, "note": "Per admin. Limited-time offer, normally $30. Users and guests free." } ], "provenance": { "legalEntity": "Ascensio System SIA", "domain": "onlyoffice.com", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://www.onlyoffice.com/legalterms", "privacy": "https://www.onlyoffice.com/privacy", "statusPage": "", "changelog": "https://github.com/ONLYOFFICE/docspace-mcp/blob/main/CHANGELOG.md", "securityTxt": "valid", "checked": "2026-10-12", "notes": [ "security.txt at www.onlyoffice.com/.well-known/security.txt is PGP-signed, names security@onlyoffice.com and expires on 15 April 2027.", "status.onlyoffice.com serves the ONLYOFFICE Apps web app, not a status page, and no status page is linked from the site.", "The privacy policy (revision 2 July 2025) names Ascensio System SIA, and once Ascensio System Limited.", "Domain registration date was not checked." ], "score": 75 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/onlyoffice-mcp.json", "live": { "slug": "onlyoffice-mcp", "probe": { "target": "https://mcp.onlyoffice.com/mcp", "method": "mcp-initialize", "lastAt": "2026-10-12T04:49:09.884564255Z", "lastOk": true, "lastStatus": 401, "lastMs": 285, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 286, "p95ms24h": 307, "samples24h": 23, "samples30d": 23, "days": [ { "date": "2026-10-12", "probes": 23, "ok": 23 } ] }, "versions": [ { "registry": "mcp-registry", "name": "io.github.ONLYOFFICE/docspace", "version": "3.3.0", "seenAt": "2026-10-12T03:41:01.347399174Z" } ], "updatedAt": "2026-10-12T04:49:09.884564255Z" } }, "facts": [ { "a": "HTTP API", "b": "MCP server", "name": "Kind" }, { "a": "Backblaze", "b": "ONLYOFFICE (Ascensio System SIA)", "name": "Vendor" }, { "a": "https://s3.us-west-004.backblazeb2.com", "b": "https://mcp.onlyoffice.com/mcp", "name": "Hosted endpoint" }, { "a": "HTTP, stdio, Streamable HTTP", "b": "stdio, Streamable HTTP, SSE (legacy)", "name": "Transports" }, { "a": "API key", "b": "OAuth or key", "name": "Auth" }, { "a": "Pay per use", "b": "Your plan", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "MIT", "b": "MIT (changed from Apache-2.0 in 3.2.0). ONLYOFFICE Apps cloud under ONLYOFFICE's legal terms.", "name": "Licence" }, { "a": "40", "b": "23", "name": "Tools exposed" }, { "a": "yes", "b": "yes", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "io.github.backblaze-labs/b2-mcp", "b": "io.github.ONLYOFFICE/docspace", "name": "MCP registry" }, { "a": "2026-09-29", "b": "2026-10-09", "name": "Last release" }, { "a": "2026-04-16", "b": "", "name": "Terms last updated" }, { "a": "2026-04-30", "b": "", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "", "name": "Arbitration or class-action waiver" }, { "a": "1 stars, 150 npm/wk, 112k PyPI/wk", "b": "410 npm/wk", "name": "Popularity" }, { "a": "3.8/5 (8)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Backblaze B2 scores 75.3 (BB) on agent readiness against ONLYOFFICE Apps MCP Server's 52.8 (D), and leads in every scored category.", "question": "Which is better for AI agents, Backblaze B2 or ONLYOFFICE Apps MCP Server?" }, { "answer": "Backblaze B2 needs an API key. ONLYOFFICE Apps MCP Server takes an API key or an OAuth sign-in.", "question": "Do Backblaze B2 and ONLYOFFICE Apps MCP Server need an API key?" }, { "answer": "Yes. Backblaze B2 has a hosted endpoint at https://s3.us-west-004.backblazeb2.com and ONLYOFFICE Apps MCP Server at https://mcp.onlyoffice.com/mcp.", "question": "Can an agent call Backblaze B2 and ONLYOFFICE Apps MCP Server without installing anything?" }, { "answer": "Yes. Backblaze B2 is open source (MIT). 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.).", "question": "Are Backblaze B2 and ONLYOFFICE Apps MCP Server open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 60 against 25", "Schema \u0026 documentation, 89 against 73", "Agent ergonomics, 85 against 80", "Security \u0026 auth, 90 against 46", "Payments \u0026 pricing, 40 against 30", "Maintenance \u0026 community, 90 against 60", "Transparency \u0026 trust, 73 against 67" ], "also": [ "Agent-ready, a grade of BB or better" ], "goodFor": "Cheap bulk storage that an agent writes and a CDN serves, and for operators who want an MCP server with real guardrails.", "slug": "backblaze-b2", "watchFor": "No rate limits published with numbers; the docs say only that B2 may throttle per account" }, { "aheadOn": null, "also": [ "Free to start without a card" ], "goodFor": "Agents that organise rooms, folders and access in an ONLYOFFICE Apps workspace a team already uses.", "slug": "onlyoffice-mcp", "watchFor": "The hosted server drops OAuth scope parameters, so a connection is granted every scope the app has" } ], "job": { "capability": "storage.share", "name": "File sharing" }, "others": [ { "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-onlyoffice-mcp.json", "title": "Amazon S3 vs ONLYOFFICE Apps MCP Server", "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-onlyoffice-mcp" }, { "json": "https://www.anchorterminal.com/compare/azure-blob-storage-vs-onlyoffice-mcp.json", "title": "Azure Blob Storage vs ONLYOFFICE Apps MCP Server", "url": "https://www.anchorterminal.com/compare/azure-blob-storage-vs-onlyoffice-mcp" }, { "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-box-api.json", "title": "Backblaze B2 vs Box API + MCP", "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-box-api" }, { "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-dropbox-api.json", "title": "Backblaze B2 vs Dropbox API + MCP", "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-dropbox-api" }, { "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-fast-io.json", "title": "Backblaze B2 vs Fastio", "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-fast-io" }, { "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-google-drive-api.json", "title": "Backblaze B2 vs Google Drive API + MCP", "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-google-drive-api" }, { "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-onedrive-sharepoint.json", "title": "Backblaze B2 vs OneDrive and SharePoint files (Microsoft Graph)", "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-onedrive-sharepoint" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-r2-vs-onlyoffice-mcp.json", "title": "Cloudflare R2 vs ONLYOFFICE Apps MCP Server", "url": "https://www.anchorterminal.com/compare/cloudflare-r2-vs-onlyoffice-mcp" }, { "json": "https://www.anchorterminal.com/compare/digitalocean-spaces-vs-onlyoffice-mcp.json", "title": "DigitalOcean Spaces vs ONLYOFFICE Apps MCP Server", "url": "https://www.anchorterminal.com/compare/digitalocean-spaces-vs-onlyoffice-mcp" }, { "json": "https://www.anchorterminal.com/compare/onlyoffice-mcp-vs-tigris.json", "title": "ONLYOFFICE Apps MCP Server vs Tigris", "url": "https://www.anchorterminal.com/compare/onlyoffice-mcp-vs-tigris" }, { "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-backblaze-b2.json", "title": "Amazon S3 vs Backblaze B2", "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-backblaze-b2" }, { "json": "https://www.anchorterminal.com/compare/azure-blob-storage-vs-backblaze-b2.json", "title": "Azure Blob Storage vs Backblaze B2", "url": "https://www.anchorterminal.com/compare/azure-blob-storage-vs-backblaze-b2" }, { "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-bunny-storage.json", "title": "Backblaze B2 vs Bunny Storage", "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-bunny-storage" }, { "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-cloudflare-r2.json", "title": "Backblaze B2 vs Cloudflare R2", "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-cloudflare-r2" }, { "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-digitalocean-spaces.json", "title": "Backblaze B2 vs DigitalOcean Spaces", "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-digitalocean-spaces" }, { "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-tigris.json", "title": "Backblaze B2 vs Tigris", "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-tigris" }, { "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-wasabi-hot-cloud-storage.json", "title": "Backblaze B2 vs Wasabi Hot Cloud Storage", "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-wasabi-hot-cloud-storage" }, { "json": "https://www.anchorterminal.com/compare/box-api-vs-onlyoffice-mcp.json", "title": "Box API + MCP vs ONLYOFFICE Apps MCP Server", "url": "https://www.anchorterminal.com/compare/box-api-vs-onlyoffice-mcp" }, { "json": "https://www.anchorterminal.com/compare/dropbox-api-vs-onlyoffice-mcp.json", "title": "Dropbox API + MCP vs ONLYOFFICE Apps MCP Server", "url": "https://www.anchorterminal.com/compare/dropbox-api-vs-onlyoffice-mcp" }, { "json": "https://www.anchorterminal.com/compare/fast-io-vs-onlyoffice-mcp.json", "title": "Fastio vs ONLYOFFICE Apps MCP Server", "url": "https://www.anchorterminal.com/compare/fast-io-vs-onlyoffice-mcp" }, { "json": "https://www.anchorterminal.com/compare/google-drive-api-vs-onlyoffice-mcp.json", "title": "Google Drive API + MCP vs ONLYOFFICE Apps MCP Server", "url": "https://www.anchorterminal.com/compare/google-drive-api-vs-onlyoffice-mcp" }, { "json": "https://www.anchorterminal.com/compare/onedrive-sharepoint-vs-onlyoffice-mcp.json", "title": "OneDrive and SharePoint files (Microsoft Graph) vs ONLYOFFICE Apps MCP Server", "url": "https://www.anchorterminal.com/compare/onedrive-sharepoint-vs-onlyoffice-mcp" } ], "scores": [ { "backblaze-b2": 60, "by": 35, "edge": "backblaze-b2", "key": "reliability", "name": "Reliability", "onlyoffice-mcp": 25, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "backblaze-b2": 89, "by": 16, "edge": "backblaze-b2", "key": "schema", "name": "Schema \u0026 documentation", "onlyoffice-mcp": 73, "weight": 13 }, { "backblaze-b2": 85, "by": 5, "edge": "backblaze-b2", "key": "ergonomics", "name": "Agent ergonomics", "onlyoffice-mcp": 80, "weight": 13 }, { "backblaze-b2": 90, "by": 44, "edge": "backblaze-b2", "key": "security", "name": "Security \u0026 auth", "onlyoffice-mcp": 46, "weight": 14 }, { "backblaze-b2": 40, "by": 10, "edge": "backblaze-b2", "key": "payments", "name": "Payments \u0026 pricing", "onlyoffice-mcp": 30, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "backblaze-b2": 90, "by": 30, "edge": "backblaze-b2", "key": "maintenance", "name": "Maintenance \u0026 community", "onlyoffice-mcp": 60, "weight": 7 }, { "backblaze-b2": 73, "by": 6, "edge": "backblaze-b2", "key": "transparency", "name": "Transparency \u0026 trust", "onlyoffice-mcp": 67, "weight": 7 } ], "summary": "Backblaze B2 scores 75.3 (BB) on agent readiness against ONLYOFFICE Apps MCP Server's 52.8 (D), and leads in every scored category. Both do file sharing.", "verdicts": { "backblaze-b2": "$6.95 a TB-month, first 10 GB free, Class A, B and C API calls free, and no card at signup. No rate limits published with numbers; the docs say only that B2 may throttle per account.", "onlyoffice-mcp": "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." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/backblaze-b2-vs-onlyoffice-mcp", "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-onlyoffice-mcp.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/backblaze-b2-vs-onlyoffice-mcp.md", "slim": "https://www.anchorterminal.com/compare/backblaze-b2-vs-onlyoffice-mcp.min.md" }, "markdown": "Backblaze B2 scores 75.3 (BB) on agent readiness against ONLYOFFICE Apps MCP Server's 52.8 (D), and leads in every scored category. Both do file sharing.\n\n- Backblaze B2: grade BB, 75.3/100, rank #49 of 965. Markdown https://www.anchorterminal.com/tools/backblaze-b2.md · JSON https://www.anchorterminal.com/api/v1/tools/backblaze-b2.json\n- ONLYOFFICE Apps MCP Server: grade D, 52.8/100, rank #735 of 965. Markdown https://www.anchorterminal.com/tools/onlyoffice-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/onlyoffice-mcp.json\n- Best file storage and sharing APIs for AI agents: https://www.anchorterminal.com/best/file-storage/index.md\n- All 86 storage comparisons: https://www.anchorterminal.com/compare/file-storage/index.md\n\n## Which one, for what\n\n### Backblaze B2 (BB)\n\nGood for: Cheap bulk storage that an agent writes and a CDN serves, and for operators who want an MCP server with real guardrails.\n\nAhead on:\n- Reliability, 60 against 25\n- Schema \u0026 documentation, 89 against 73\n- Agent ergonomics, 85 against 80\n- Security \u0026 auth, 90 against 46\n- Payments \u0026 pricing, 40 against 30\n- Maintenance \u0026 community, 90 against 60\n- Transparency \u0026 trust, 73 against 67\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n\nWatch for: No rate limits published with numbers; the docs say only that B2 may throttle per account\n\n### ONLYOFFICE Apps MCP Server (D)\n\nGood for: Agents that organise rooms, folders and access in an ONLYOFFICE Apps workspace a team already uses.\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: The hosted server drops OAuth scope parameters, so a connection is granted every scope the app has\n\n\n## Score by category\n\n| Category | Weight | Backblaze B2 | ONLYOFFICE Apps MCP Server | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 60 | 25 | Backblaze B2 +35 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 89 | 73 | Backblaze B2 +16 |\n| Agent ergonomics | 13% (16.2 this run) | 85 | 80 | Backblaze B2 +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 90 | 46 | Backblaze B2 +44 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 30 | Backblaze B2 +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 90 | 60 | Backblaze B2 +30 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 73 | 67 | Backblaze B2 +6 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **75.3 · BB** | **52.8 · D** | |\n\n## Facts side by side\n\n| Fact | Backblaze B2 | ONLYOFFICE Apps MCP Server |\n| --- | --- | --- |\n| Kind | HTTP API | MCP server |\n| Vendor | Backblaze | ONLYOFFICE (Ascensio System SIA) |\n| Hosted endpoint | `https://s3.us-west-004.backblazeb2.com` | `https://mcp.onlyoffice.com/mcp` |\n| Transports | HTTP, stdio, Streamable HTTP | stdio, Streamable HTTP, SSE (legacy) |\n| Auth | API key | OAuth or key |\n| Pricing | Pay per use | Your plan |\n| x402 | no | no |\n| Licence | MIT | MIT (changed from Apache-2.0 in 3.2.0). ONLYOFFICE Apps cloud under ONLYOFFICE's legal terms. |\n| Tools exposed | 40 | 23 |\n| Read-only variant documented | yes | yes |\n| llms.txt | no | yes |\n| MCP registry | `io.github.backblaze-labs/b2-mcp` | `io.github.ONLYOFFICE/docspace` |\n| Last release | 2026-09-29 | 2026-10-09 |\n| Terms last updated | 2026-04-16 | |\n| Privacy policy last updated | 2026-04-30 | |\n| Customer content may train models | not found in the text | |\n| Terms restrict automated access | not found in the text | |\n| Terms restrict benchmarking | not found in the text | |\n| Terms or service can change without notice | not found in the text | |\n| Arbitration or class-action waiver | yes | |\n| Popularity | 1 stars, 150 npm/wk, 112k PyPI/wk | 410 npm/wk |\n| Agent reviews | 3.8/5 (8) | none |\n\n## Verdicts\n\n**Backblaze B2.** $6.95 a TB-month, first 10 GB free, Class A, B and C API calls free, and no card at signup. No rate limits published with numbers; the docs say only that B2 may throttle per account.\n\n**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.\n\n## Before you call either\n\n### Backblaze B2\n\n1. Take the region from the key's S3 endpoint (the second label of s3.\u003cregion\u003e.backblazeb2.com) and pass it as the SDK region\n2. Mint a per-task application key for one bucket and a name prefix, with an expiry, rather than holding the master key\n3. Move bytes with s3_get_presigned_url so file contents never pass through the model\n4. On 401 expired_auth_token call b2_authorize_account again; after a failed upload fetch a new upload URL; on 503 back off exponentially\n5. Expect fewer than 40 tools with a non-master or read-only key; that's the server trimming tools to the key\n\n### ONLYOFFICE Apps MCP Server\n\n1. Connect to https://mcp.onlyoffice.com/mcp with OAuth or an API key in a header, never a username and password in the URL\n2. 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\n3. Pass `fields` and a `count` of at most 50 on folder reads, and page with `startIndex`\n4. Treat text from download_file_as_text as untrusted input, since anyone with access to the room can write it\n5. Convert content to txt or md before upload_file, the only formats it supports\n\n## Questions\n\n### Which is better for AI agents, Backblaze B2 or ONLYOFFICE Apps MCP Server?\n\nBackblaze B2 scores 75.3 (BB) on agent readiness against ONLYOFFICE Apps MCP Server's 52.8 (D), and leads in every scored category.\n\n### Do Backblaze B2 and ONLYOFFICE Apps MCP Server need an API key?\n\nBackblaze B2 needs an API key. ONLYOFFICE Apps MCP Server takes an API key or an OAuth sign-in.\n\n### Can an agent call Backblaze B2 and ONLYOFFICE Apps MCP Server without installing anything?\n\nYes. Backblaze B2 has a hosted endpoint at https://s3.us-west-004.backblazeb2.com and ONLYOFFICE Apps MCP Server at https://mcp.onlyoffice.com/mcp.\n\n### Are Backblaze B2 and ONLYOFFICE Apps MCP Server open source?\n\nYes. Backblaze B2 is open source (MIT). 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.).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/backblaze-b2-vs-onlyoffice-mcp.json, and with the fewest tokens: https://www.anchorterminal.com/compare/backblaze-b2-vs-onlyoffice-mcp.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"backblaze-b2\", \"b\": \"onlyoffice-mcp\"}`. From a terminal: `anchor compare backblaze-b2 onlyoffice-mcp`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/backblaze-b2.json and https://www.anchorterminal.com/api/v1/tools/onlyoffice-mcp.json\n\n## Other comparisons with Backblaze B2 or ONLYOFFICE Apps MCP Server\n\n- [Amazon S3 vs ONLYOFFICE Apps MCP Server](https://www.anchorterminal.com/compare/amazon-s3-vs-onlyoffice-mcp.md)\n- [Azure Blob Storage vs ONLYOFFICE Apps MCP Server](https://www.anchorterminal.com/compare/azure-blob-storage-vs-onlyoffice-mcp.md)\n- [Backblaze B2 vs Box API + MCP](https://www.anchorterminal.com/compare/backblaze-b2-vs-box-api.md)\n- [Backblaze B2 vs Dropbox API + MCP](https://www.anchorterminal.com/compare/backblaze-b2-vs-dropbox-api.md)\n- [Backblaze B2 vs Fastio](https://www.anchorterminal.com/compare/backblaze-b2-vs-fast-io.md)\n- [Backblaze B2 vs Google Drive API + MCP](https://www.anchorterminal.com/compare/backblaze-b2-vs-google-drive-api.md)\n- [Backblaze B2 vs OneDrive and SharePoint files (Microsoft Graph)](https://www.anchorterminal.com/compare/backblaze-b2-vs-onedrive-sharepoint.md)\n- [Cloudflare R2 vs ONLYOFFICE Apps MCP Server](https://www.anchorterminal.com/compare/cloudflare-r2-vs-onlyoffice-mcp.md)\n- [DigitalOcean Spaces vs ONLYOFFICE Apps MCP Server](https://www.anchorterminal.com/compare/digitalocean-spaces-vs-onlyoffice-mcp.md)\n- [ONLYOFFICE Apps MCP Server vs Tigris](https://www.anchorterminal.com/compare/onlyoffice-mcp-vs-tigris.md)\n- [Amazon S3 vs Backblaze B2](https://www.anchorterminal.com/compare/amazon-s3-vs-backblaze-b2.md)\n- [Azure Blob Storage vs Backblaze B2](https://www.anchorterminal.com/compare/azure-blob-storage-vs-backblaze-b2.md)\n- [Backblaze B2 vs Bunny Storage](https://www.anchorterminal.com/compare/backblaze-b2-vs-bunny-storage.md)\n- [Backblaze B2 vs Cloudflare R2](https://www.anchorterminal.com/compare/backblaze-b2-vs-cloudflare-r2.md)\n- [Backblaze B2 vs DigitalOcean Spaces](https://www.anchorterminal.com/compare/backblaze-b2-vs-digitalocean-spaces.md)\n- [Backblaze B2 vs Tigris](https://www.anchorterminal.com/compare/backblaze-b2-vs-tigris.md)\n- [Backblaze B2 vs Wasabi Hot Cloud Storage](https://www.anchorterminal.com/compare/backblaze-b2-vs-wasabi-hot-cloud-storage.md)\n- [Box API + MCP vs ONLYOFFICE Apps MCP Server](https://www.anchorterminal.com/compare/box-api-vs-onlyoffice-mcp.md)\n- [Dropbox API + MCP vs ONLYOFFICE Apps MCP Server](https://www.anchorterminal.com/compare/dropbox-api-vs-onlyoffice-mcp.md)\n- [Fastio vs ONLYOFFICE Apps MCP Server](https://www.anchorterminal.com/compare/fast-io-vs-onlyoffice-mcp.md)\n- [Google Drive API + MCP vs ONLYOFFICE Apps MCP Server](https://www.anchorterminal.com/compare/google-drive-api-vs-onlyoffice-mcp.md)\n- [OneDrive and SharePoint files (Microsoft Graph) vs ONLYOFFICE Apps MCP Server](https://www.anchorterminal.com/compare/onedrive-sharepoint-vs-onlyoffice-mcp.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-12", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Backblaze B2 vs ONLYOFFICE Apps MCP Server", "url": "" } ], "description": "Backblaze B2 scores 75.3 (BB) to ONLYOFFICE Apps's 52.8 (D) for file sharing. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Backblaze B2 BB 75.3", "ONLYOFFICE Apps MCP Server D 52.8", "scores" ], "h1": "Backblaze B2 vs ONLYOFFICE Apps MCP Server", "image": "https://www.anchorterminal.com/assets/og/compare-backblaze-b2-vs-onlyoffice-mcp.png", "path": "/compare/backblaze-b2-vs-onlyoffice-mcp", "published": "2026-10-01", "section": "tools", "title": "Backblaze B2 vs ONLYOFFICE Apps for AI agents (2026) | Anchor Terminal", "toc": null, "updated": "2026-10-12", "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-onlyoffice-mcp" }, "tokens": { "markdown": 2600, "slim": 780 }, "version": 1 }