{"eid":"slack","name":"Slack","domain":"slack.com","resolved_by":"domain","topics":["storage"],"n_records":1,"best_vorder":6,"review":null,"aliases":["Slack","Slack (free plan)","slack.com"],"records":[{"rid":"storage/slack","card":{"rid":"storage/slack","eid":"slack","topic":"storage","slug":"slack","provider":"Slack (free plan)","url":"https://slack.com","domain":"slack.com","category":"messaging","tier":null,"verdict":"fails-quota","vorder":6,"grp":"rejected","confidence":"reported","binding":"per-object-cap","identity_kind":"email","identity_basis":"defaulted","needs_card":null,"needs_phone":null,"needs_id":null,"needs_institution":null,"country":null,"crypto":null,"interfaces":"rest","egress_metered":0,"per_object_bytes":1000000000,"retention_days":null,"verified_at":"2026-10-21T00:00:00.000Z","verified_basis":"inherited","checked_on":"2026-10-21","stale_on":"2026-11-04","n_evidence":4,"usd_month":null,"usd_per_tb_month":null,"summary":"5 GB per free workspace (hard cap), 1 GB max per file, plus a 90-day visibility window and permanent deletion of anything over one year old","duplicate_of":null,"n_unknown":7},"record":{"topic":"storage","slug":"slack","provider":"Slack (free plan)","url":"https://slack.com","category":"messaging","free_tier":{"stated":"5 GB per free workspace (hard cap), 1 GB max per file, plus a 90-day visibility window and permanent deletion of anything over one year old","unit":"GB","metered_on":"unstated","source_url":"https://docs.slack.dev/reference/methods/files.getUploadURLExternal/","read_on":"2026-10-21","notes":null},"per_object_cap":{"stated":"1 GB max per file","bytes":1000000000,"source_url":"https://docs.slack.dev/reference/methods/files.getUploadURLExternal/","notes":"not stated"},"retention":{"stated":"not stated","source_url":"https://docs.slack.dev/reference/methods/files.getUploadURLExternal/","notes":"not stated"},"egress":{"terms":"Free; files served from files.slack.com -> files-origin.slack.com behind CloudFront","metered":false},"interface":["rest"],"interface_detail":"rest","tooling":"Slack Web API (files.getUploadURLExternal + files.completeUploadExternal), 1 GB per file; jeremy46231/slackfs (FUSE mount, 6 stars) exists but only mounts, does not add capacity","chaining":"5 GB x N free workspaces, but the one-year deletion makes it useless as an archive and the 90-day hide makes it useless as storage. Only viable as a transient relay.","limits":[{"kind":"per-object-cap","value":"1 GB per file","source":"https://docs.slack.dev/reference/methods/files.getUploadURLExternal/"}],"limits_note":"5 GB workspace total; 1 GB per file; 10 apps max; content older than 90 days is hidden, content older than 1 year is permanently deleted (rolling, since 2024-08-26); high-volume upload throttling is explicitly mentioned in the free-plan limits","identity_cost":{"kind":"email","detail":null,"country":null},"reliability_note":"Data loss is contractual, not accidental: Slack states it 'will not be possible to restore messages and files once deletion occurs'. Also explicitly throttles 'use for storage and spam'.","confidence":"reported","confidence_note":"One page read moves it to documented.","evidence":[{"url":"https://docs.slack.dev/reference/methods/files.getUploadURLExternal/","date":"2026-10-21","proved":"error table: 'storage_limit_reached - File storage limit has been reached. This occurs when free teams have uploaded 5GB of files.'"},{"url":"https://slack.com/help/articles/115002422943-Usage-limits-for-free-workspaces","date":"2026-10-21","proved":"'You can view and search messages and files from the last 90 days... Messages and files more than one year old will be permanently deleted'"},{"url":"https://slack.com/help/articles/201330736-Add-files-to-Slack","date":"2026-10-21","proved":"'Members and guests can add files up to 1GB in size.'"},{"url":"https://slack.com/api/files.getUploadURLExternal","date":"2026-10-21","proved":"probe: POST -> HTTP 200 {\"ok\":false,\"error\":\"not_authed\"} (API live)"}],"verdict":"fails-quota","verified_at":"2026-10-21T00:00:00.000Z","notes":"5 GB per free workspace (hard cap), 1 GB max per file, plus a 90-day visibility window and permanent deletion of anything over one year old","extras":{"dead_end":{"failure_class":"quota","why":"5 GB per free workspace (hard cap), 1 GB max per file, plus a 90-day visibility window and permanent deletion of anything over one year old","retry_when":null,"first_recorded":"2026-10-21"}},"binding":"per-object-cap","binding_note":"the per-object cap sets the shard size and therefore the object count; it bounds the total more tightly than any headline quota"},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":5.0,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[0].value","kind":"limit:per-object-cap","num":1.0,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"}],"unknown":[["$.extras.dead_end.retry_when","process"],["$.free_tier.notes","process"],["$.identity_cost.detail","defaulted"],["$.identity_cost.kind","identity-defaulted"],["$.per_object_cap.notes","not-extracted"],["$.retention.notes","not-extracted"],["$.retention.stated","not-extracted"]],"history":[],"drift":[]}]}