{"eid":"backblaze","name":"Backblaze B2","domain":"backblaze.com","resolved_by":"domain","topics":["storage"],"n_records":1,"best_vorder":1,"review":null,"aliases":["Backblaze B2","backblaze.com"],"records":[{"rid":"storage/backblaze-b2","card":{"rid":"storage/backblaze-b2","eid":"backblaze","topic":"storage","slug":"backblaze-b2","provider":"Backblaze B2","url":"https://www.backblaze.com/cloud-storage/pricing","domain":"backblaze.com","category":"S3-compatible object storage","tier":"pay-as-you-go","verdict":"qualifies-with-caveat","vorder":1,"grp":"usable","self_hosted":0,"confidence":"documented","binding":"volume-quota","identity_kind":"email","identity_basis":"stated","needs_card":0,"needs_phone":0,"needs_id":0,"needs_institution":0,"country":null,"crypto":null,"interfaces":"s3-compatible,rest","egress_metered":1,"per_object_bytes":null,"retention_days":null,"verified_at":"2026-11-03T01:28:26.944Z","verified_basis":"live","checked_on":"2026-11-03","stale_on":"2026-12-04","n_evidence":25,"usd_month":null,"usd_per_tb_month":6.95,"summary":"First 10GB storage is always free; storage above it is billed per byte-hour at USD 6.95/TB/30-days","duplicate_of":null,"n_unknown":1,"free_unit":"GB"},"record":{"topic":"storage","slug":"backblaze-b2","provider":"Backblaze B2","url":"https://www.backblaze.com/cloud-storage/pricing","category":"S3-compatible object storage","tier":"pay-as-you-go","free_tier":{"stated":"First 10GB storage is always free; storage above it is billed per byte-hour at USD 6.95/TB/30-days","unit":"GB","metered_on":"stored-bytes","source_url":"https://www.backblaze.com/cloud-storage/pricing","read_on":"2026-10-30","notes":"Class A, B and C API calls are free on pay-as-you-go; Class D calls are free up to 2,500 a day. The API pricing page still prints USD 0.005/GB/month for storage after the first 10 GB, while the pricing page and its billing FAQ print USD 6.95/TB/30-days."},"per_object_cap":{"stated":"Large files can range in size from 5 MB to 10 TB; a file sent in one request is limited to 5 GB","bytes":null,"source_url":"https://www.backblaze.com/docs/cloud-storage-large-files","notes":"10 TB is the cap for a large (multipart) file, assembled from parts of 5 MB to 5 GB; the page does not say whether TB is decimal or binary, so bytes is left null."},"retention":{"stated":"No minimum storage duration fees; the pages read state no expiry for stored files","days":null,"source_url":"https://www.backblaze.com/cloud-storage/pricing","notes":"the pricing page lists 'No minimum file size or storage duration fees'; lifecycle rules are set per bucket by the account holder."},"egress":{"terms":"Free up to 3x the average monthly stored bytes (byte-hours over the billing cycle), then USD 0.01/GB; unlimited and free to partner CDNs and compute services (Fastly, Cloudflare, bunny.net, CacheFly, CoreWeave, Equinix Metal, Vultr, phoenixNAP)","metered":true,"free_allowance":"3x the average monthly stored bytes; unmetered to the named partner CDNs and compute services","price_per_tb":"USD 0.01 per GB beyond the 3x allowance","source_url":"https://www.backblaze.com/cloud-storage/pricing"},"interface":["s3-compatible","rest"],"interface_detail":"S3-Compatible API (the S3 syntax, with limited ACL and tagging support) and the B2 Native API (b2_* calls)","tooling":"AWS CLI, AWS SDKs, AWS Tools for PowerShell and s3cmd against the S3-Compatible API; any S3 client, rclone's s3 backend among them; the B2 Native API for b2_* calls","chaining":"An S3 origin behind Cloudflare, Fastly or bunny.net: egress to those partner CDNs is free and outside the 3x allowance, so a CDN-fronted public bucket serves reads without the USD 0.01/GB overage.","limits":[{"kind":"volume-quota","value":"10 GB of storage free; every byte above it is billed at USD 6.95/TB/30-days","source":"https://www.backblaze.com/cloud-storage/pricing"},{"kind":"volume-quota","value":"egress free up to 3x the average monthly stored bytes; beyond it USD 0.01/GB, except to partner CDNs and compute services","source":"https://www.backblaze.com/cloud-storage/pricing"},{"kind":"per-object-cap","value":"10 TB per large file (parts of 5 MB to 5 GB); 5 GB per single-request file","source":"https://www.backblaze.com/docs/cloud-storage-large-files"},{"kind":"request-rate","value":"Class D transactions: the first 2,500 calls a day free, then USD 0.004 per 10,000 calls; Class A, B and C calls free","source":"https://www.backblaze.com/cloud-storage/pricing"}],"limits_note":"No minimum file size and no minimum storage duration fees. A public bucket needs a verified email address and a payment history on file, or a small card payment credited to the account balance.","binding":"volume-quota","binding_note":"the 10 GB of free storage is the first ceiling; on the paid tier the next one is the 3x-of-stored egress allowance, which partner-CDN egress does not count against","identity_cost":{"kind":"email","detail":"Account creation asks for an email address verified by a link, a password and a data region, and the sign-up page states 'No credit card required.' A public bucket needs a payment history or a small card payment. A help-centre article says enabling B2 on an existing Computer Backup account prompts for a phone number verified by SMS; the account-creation guide names no phone step.","country":null},"reliability_note":"no throttle, suspension or data-loss event is stated on the pages read; usage above 10 GB of storage or above the 3x egress allowance is billed automatically","confidence":"documented","confidence_note":"every value is quoted from a first-party Backblaze page read on 2026-10-30; no request was made against the service, so the read path is unprobed. A probe of a public object would raise it to measured.","evidence":[{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-10-30","proved":"storage is billed per byte-hour at USD 6.95/TB/30-days","capture":"sha256:5f5de1f293b9dca52a415d8c22b4ac5ce5c4e74c3da17667fe0d2dacfad1ba8c","quote":"Service is billed monthly, based on the amount of data stored per byte-hour over the last month at a rate of $6.95/TB/30-days."},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-10-30","proved":"the first 10 GB of storage is free with no time limit","capture":"sha256:5f5de1f293b9dca52a415d8c22b4ac5ce5c4e74c3da17667fe0d2dacfad1ba8c","quote":"First 10GB storage is always free."},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-10-30","proved":"egress is free up to 3x the average monthly stored bytes","capture":"sha256:5f5de1f293b9dca52a415d8c22b4ac5ce5c4e74c3da17667fe0d2dacfad1ba8c","quote":"All B2 Cloud Storage users get free egress up to 3x their average monthly storage."},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-10-30","proved":"egress beyond the 3x allowance costs USD 0.01/GB","capture":"sha256:5f5de1f293b9dca52a415d8c22b4ac5ce5c4e74c3da17667fe0d2dacfad1ba8c","quote":"Egress beyond 3x is just $0.01/GB—no surprise fees, no penalties."},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-10-30","proved":"egress to the named partner CDNs and compute services is unlimited and free","capture":"sha256:5f5de1f293b9dca52a415d8c22b4ac5ce5c4e74c3da17667fe0d2dacfad1ba8c","quote":"Backblaze B2 offers unlimited free egress when downloading to or through partner content delivery networks (CDNs) and compute services, including Fastly, Cloudflare, bunny.net, CacheFly, CoreWeave, Equinix Metal, Vultr, and phoenixNAP."},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-10-30","proved":"there is no minimum object size charge and no minimum storage duration charge","capture":"sha256:5f5de1f293b9dca52a415d8c22b4ac5ce5c4e74c3da17667fe0d2dacfad1ba8c","quote":"No minimum file size or storage duration fees"},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-10-30","proved":"Class A, B and C calls are free; Class D calls cost USD 0.004 per 10,000 after 2,500 free a day","capture":"sha256:5f5de1f293b9dca52a415d8c22b4ac5ce5c4e74c3da17667fe0d2dacfad1ba8c","quote":"Class A, B, and C API calls are free for pay-as-you-go customers. Class D transactions cost $0.004 per 10,000 calls plus the first 2,500 calls per day are free."},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-10-30","proved":"B2 is S3-compatible object storage","capture":"sha256:5f5de1f293b9dca52a415d8c22b4ac5ce5c4e74c3da17667fe0d2dacfad1ba8c","quote":"Enterprise-grade, security & compliance-ready, S3 compatible object storage—at a fraction of the cost."},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-10-30","proved":"B2 Overdrive needs a multi-petabyte commitment","capture":"sha256:5f5de1f293b9dca52a415d8c22b4ac5ce5c4e74c3da17667fe0d2dacfad1ba8c","quote":"Multi-petabyte commitment required"},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-10-30","proved":"pay-as-you-go is paid by credit card or invoice","capture":"sha256:5f5de1f293b9dca52a415d8c22b4ac5ce5c4e74c3da17667fe0d2dacfad1ba8c","quote":"Credit card or invoice"},{"url":"https://www.backblaze.com/docs/cloud-storage-s3-compatible-api","date":"2026-10-30","proved":"the S3-Compatible API accepts applications written to the S3 API","capture":"sha256:fcf4b8277e9a6066bc6b8633ce6eff75167f17d61c6114d20affe485a8e25aec","quote":"Backblaze B2 will just work, with minimal code changes on your end."},{"url":"https://www.backblaze.com/docs/cloud-storage-large-files","date":"2026-10-30","proved":"the largest object is a 10 TB large file; a normal (single-request) file is limited to 5 GB","capture":"sha256:47a5776dfc63edf0c960545d252fda69c0fd2b72e0a8951c5575f34b28454ae0","quote":"Large files can range from 5 MB to 10 TB which is well beyond the 5 GB limit on normal files."},{"url":"https://www.backblaze.com/sign-up/cloud-storage","date":"2026-10-30","proved":"the B2 sign-up asks for no credit card","capture":"sha256:5a216594a28f7cd3d932dc05e800a857fe20bc742c25040e3ab02dc5e84d54f3","quote":"No credit card required."},{"url":"https://www.backblaze.com/docs/en/cloud-storage-enable-backblaze-b2","date":"2026-10-30","proved":"account creation verifies the email address by a link, then asks for a password and a data region","capture":"sha256:e98064685c3f178ec75959e3888cd913974407d8c8dbcfdfad06f54beef03132","quote":"Check your email, and click the link to verify your email address."},{"url":"https://www.backblaze.com/docs/cloud-storage-create-and-manage-buckets","date":"2026-10-30","proved":"a first public bucket needs a payment history or a small card payment","capture":"sha256:5090042d4be16c75851b8a0461dbd0021ffc6b9bf668e6013f20b44daa79f779","quote":"Have a payment history on file, or use the credit card form to pay a small fee that is credited to your account balance."},{"url":"https://help.backblaze.com/hc/en-us/articles/360035350993-B2-Quick-Start-Guide","date":"2026-10-30","proved":"enabling B2 on an existing Computer Backup account prompts for an SMS-verified phone number","capture":"sha256:81a857f43c6d2861e8b56ab81e0fc7a10e316d9d8a2d41bb3715380dd654527b","quote":"When activating B2 on your account in this way, you will be prompted to enter a phone number that must be verified via SMS."},{"url":"https://www.backblaze.com/cloud-storage/transaction-pricing","date":"2026-10-30","proved":"the API pricing page prints USD 0.005/GB/month for storage after the first 10 GB, a figure the pricing page no longer uses","capture":"sha256:260665afdd6bc8921f3abbe1fb232959ddd491c52454a5d4ed34df55e7ebe6af","quote":"Once uploaded, storage charges apply to all data after the first 10GB in your account at the rate of $0.005/GB/month."},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-11-03","proved":"storage is still billed at USD 6.95/TB/30-days per byte-hour","capture":"sha256:284c0b920f9fd2b0533f8d4a023f87ab118a0d42db3366d0734c979bbc34a5fe","quote":"Service is billed monthly, based on the amount of data stored per byte-hour over the last month at a rate of $6.95/TB/30-days."},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-11-03","proved":"egress is free up to 3x the average monthly storage","capture":"sha256:284c0b920f9fd2b0533f8d4a023f87ab118a0d42db3366d0734c979bbc34a5fe","quote":"All B2 Cloud Storage users get free egress up to 3x their average monthly storage."},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-11-03","proved":"egress beyond 3x costs USD 0.01/GB","capture":"sha256:284c0b920f9fd2b0533f8d4a023f87ab118a0d42db3366d0734c979bbc34a5fe","quote":"Egress beyond 3x is just $0.01/GB—no surprise fees, no penalties."},{"url":"https://www.backblaze.com/cloud-storage/pricing","date":"2026-11-03","proved":"egress to or through Cloudflare and the other named partners is unlimited and free","capture":"sha256:284c0b920f9fd2b0533f8d4a023f87ab118a0d42db3366d0734c979bbc34a5fe","quote":"Backblaze B2 offers unlimited free egress when downloading to or through partner content delivery networks (CDNs) and compute services, including Fastly, Cloudflare, bunny.net, CacheFly, CoreWeave, Equinix Metal, Vultr, and phoenixNAP."},{"url":"https://www.backblaze.com/docs/cloud-storage-deliver-public-backblaze-b2-content-through-cloudflare-cdn","date":"2026-11-03","proved":"public B2 buckets can be served through Cloudflare's CDN with no Backblaze download fees","capture":"sha256:fe89760ed0aad284ec0cb03d01040b4f3f3e5b59a6ef67cd40e202b45afdde12","quote":null},{"url":"https://www.backblaze.com/sign-up/cloud-storage","date":"2026-11-03","proved":"the B2 sign-up page asks for no credit card","capture":"sha256:76878f904476c71b3af0f45b87dffdd957a052050b9d968faae0fbf1db75863d","quote":"No credit card required."},{"url":"https://www.backblaze.com/docs/en/cloud-storage-enable-backblaze-b2","date":"2026-11-03","proved":"account creation verifies the email address by a link","capture":"sha256:e98064685c3f178ec75959e3888cd913974407d8c8dbcfdfad06f54beef03132","quote":"Check your email, and click the link to verify your email address."},{"url":"https://www.backblaze.com/docs/cloud-storage-create-and-manage-buckets","date":"2026-11-03","proved":"a public bucket needs a payment history or a small card payment","capture":"sha256:5090042d4be16c75851b8a0461dbd0021ffc6b9bf668e6013f20b44daa79f779","quote":"Have a payment history on file, or use the credit card form to pay a small fee that is credited to your account balance."}],"verdict":"qualifies-with-caveat","verified_at":"2026-11-03T01:28:26.944Z","price_per_tb_month":"USD 6.95 per TB per 30 days, pay-as-you-go, after the first 10 GB","notes":"S3-compatible object storage: confirmed. B2 Overdrive, the higher-throughput tier, starts at USD 15 per TB a month with unlimited free egress and needs a multi-petabyte commitment, so it is not a separate entry point. Payment is by credit card or invoice."},"claims":[{"path":"$.free_tier","kind":"has-free-tier","num":1.0,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.free_tier.stated","kind":"free-quota","num":10.0,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[0].value","kind":"limit:volume-quota","num":10.0,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[1].value","kind":"limit:volume-quota","num":null,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"unparsed"},{"path":"$.limits[2].value","kind":"limit:per-object-cap","num":10.0,"unit":"TB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[3].value","kind":"limit:request-rate","num":2500.0,"unit":"calls","per":"day","currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.price_per_tb_month","kind":"price-per-tb","num":6.95,"unit":"TB","per":"month","currency":"USD","usd":6.95,"fx_date":null,"parse":"ok"}],"unknown":[["$.evidence[21].quote","withheld"]],"history":[],"drift":[]}]}