{"rid":"netdisk-pan/lark-drive-via-multi-tenant-app-credentials","card":{"rid":"netdisk-pan/lark-drive-via-multi-tenant-app-credentials","eid":"larksuite","topic":"netdisk-pan","slug":"lark-drive-via-multi-tenant-app-credentials","provider":"Lark / 飞书 Drive via multi-tenant app credentials (the FeiSync pattern)","url":"https://open.larksuite.com/app","domain":"larksuite.com","category":"platform storage reached through app credentials","tier":null,"verdict":"qualifies-with-caveat","vorder":1,"grp":"usable","confidence":"reported","binding":"per-object-cap","identity_kind":"email","identity_basis":"stated","needs_card":0,"needs_phone":1,"needs_id":0,"needs_institution":0,"country":null,"crypto":null,"interfaces":"rest","egress_metered":0,"per_object_bytes":250000000,"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":3,"usd_month":null,"usd_per_tb_month":null,"summary":"100 GB per Lark tenant. '任意扩容，只要添加 App ID 和 App Secret 就可以免费获得100G空间，单文件250M，简单说就是容量上限取决于你的号数量'","duplicate_of":null,"n_unknown":0},"record":{"topic":"netdisk-pan","slug":"lark-drive-via-multi-tenant-app-credentials","provider":"Lark / 飞书 Drive via multi-tenant app credentials (the FeiSync pattern)","url":"https://open.larksuite.com/app","category":"platform storage reached through app credentials","free_tier":{"stated":"100 GB per Lark tenant. '任意扩容，只要添加 App ID 和 App Secret 就可以免费获得100G空间，单文件250M，简单说就是容量上限取决于你的号数量'","unit":"GiB","metered_on":"stored-bytes","source_url":"https://linux.do/t/topic/1371150","read_on":"2026-10-21"},"per_object_cap":{"stated":"250 MB per file","bytes":250000000,"source_url":"https://linux.do/t/topic/1371150"},"retention":{"stated":"While the tenant persists. No retention clock published","days":null,"source_url":"https://open.larksuite.com/app"},"egress":{"terms":"Unmetered in practice; there is no egress line item on the free tier","metered":false,"free_allowance":null,"price_per_tb":null,"source_url":"https://linux.do/t/topic/1371150"},"interface":["rest"],"tooling":"FeiSync v1.0.0 by fish2018, Tauri and Rust with a Vue front end, presented on linux.do on 2025-12-28: multi-tenant routing, one-way or two-way cron sync, resumable transfer and an open HTTP API. The underlying API is the Lark Drive open platform v1 at /drive/v1/files","chaining":"This is the Google service-account pattern reimplemented for Lark: create N free tenants, register a custom app in each, and FeiSync load-balances writes across them for 100 GB times N in one flat namespace. 250 MB per file is the binding number, not the bytes","limits":[{"kind":"per-object-cap","value":"250 MB per file","source":"https://linux.do/t/topic/1371150"},{"kind":"request-rate","value":"apps inside one tenant share that tenant's 100 GB, so a second app is not a second quota","source":"https://linux.do/t/topic/1371150"}],"identity_cost":{"kind":"email","detail":"a distinct email address or phone number per tenant. Lark has historically required an overseas IP to register outside the mainland, which is a feature here","country":null},"reliability_note":"Two constraints bite: 250 MB per file caps the cold-archive case hard, and app-permission changes break the wrapper. Tenant creation needs a distinct identity each time","confidence":"reported","evidence":[{"url":"https://linux.do/t/topic/1371150","date":"2026-10-21","proved":"'免费无限扩容，每个账号免费扩容100G，单文件250M' and '不能是同一个企业的不同应用，会共享100G'"},{"url":"https://linux.do/t/topic/360439","date":"2026-10-21","proved":"'larksuite所谓飞书海外版，必须要海外IP才能注册' '海外ip，会成功'"},{"url":"https://linux.do/t/topic/588707","date":"2026-10-21","proved":"'Lark 免费用户就有自定域名邮箱、100 GB 存储'"}],"verdict":"qualifies-with-caveat","verified_at":"2026-10-21T00:00:00.000Z","binding":"per-object-cap","binding_note":"100 GB per tenant multiplies cleanly and the traffic is free, so the only number that shapes a plan is 250 MB per file: the 20 TiB archive becomes 84,000 objects, and the 10 TiB working set 42,000.","notes":"The most directly applicable of the app-credential patterns, because tenancy is free and self-service. The 250 MB file cap is what makes it a shard target rather than a store, and that is a job for a chunker rather than a blocker.","extras":{"access_mode":"registration-gated","wrapper":"FeiSync v1.0.0 (fish2018)","quota_per_tenant_bytes_derived":107374182400,"per_file_cap_bytes_derived":250000000,"overseas_ip_required":true,"aliases":["Lark / 飞书 Drive via multi-tenant app credentials (FeiSync pattern)"]}},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":100,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[0].value","kind":"limit:per-object-cap","num":250,"unit":"MB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[1].value","kind":"limit:request-rate","num":100,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"}],"unknown":[],"history":[],"drift":[]}