{"rid":"storage/amazon-dynamodb","card":{"rid":"storage/amazon-dynamodb","eid":"amazon","topic":"storage","slug":"amazon-dynamodb","provider":"Amazon DynamoDB","url":"https://aws.amazon.com/dynamodb/","domain":"amazon.com","category":"iaas","tier":null,"verdict":"fails-egress","vorder":5,"grp":"rejected","confidence":"reported","binding":"none","identity_kind":"card","identity_basis":"defaulted","needs_card":1,"needs_phone":null,"needs_id":null,"needs_institution":null,"country":null,"crypto":null,"interfaces":"rest,cli","egress_metered":1,"per_object_bytes":null,"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":6,"usd_month":null,"usd_per_tb_month":null,"summary":"25 GB of storage, always free (does not expire), plus 25 WCU and 25 RCU provisioned capacity and ~200M requests/month","duplicate_of":null,"n_unknown":8},"record":{"topic":"storage","slug":"amazon-dynamodb","provider":"Amazon DynamoDB","url":"https://aws.amazon.com/dynamodb/","category":"iaas","free_tier":{"stated":"25 GB of storage, always free (does not expire), plus 25 WCU and 25 RCU provisioned capacity and ~200M requests/month","unit":"GB","metered_on":"stored-bytes","source_url":"https://aws.amazon.com/dynamodb/pricing/","read_on":"2026-10-21","notes":null},"per_object_cap":{"stated":"not stated","source_url":"https://aws.amazon.com/dynamodb/pricing/","notes":"not stated"},"retention":{"stated":"not stated","source_url":"https://aws.amazon.com/dynamodb/pricing/","notes":"not stated"},"egress":{"terms":"Metered — AWS gives 100 GB/month of data transfer out free, aggregated across all AWS services. 100 GB/month = ~3.3 GB/day vs 500 GB/day: 150x short. Beyond that, standard internet DTO rates.","metered":true,"free_allowance":"100 GB per month"},"interface":["rest","cli"],"interface_detail":"rest","tooling":"AWS SDKs (boto3 etc.), `aws dynamodb` CLI, PartiQL; native `Binary` attribute type (raw bytes, base64 on the wire only); DynamoDB Streams + Lambda for processing","chaining":"25 GB per account per region, and the docs confirm 'the first 25 GB of storage are included in the AWS Free Tier in each AWS Region' — so N regions x 25 GB. 20 regions = 500 GB in principle, all under one account. This is the single largest structured-store byte allowance found. But the 25 RCU cap is region-global per table, so serving is throttled regardless.","limits":[],"limits_note":"400 KB max item (including attribute names); 25 RCU + 25 WCU provisioned; 100 bytes storage overhead per item; 25 GB/region free; binary values must be base64-encoded for transport but are sized by raw bytes","identity_cost":{"kind":"card","detail":"inferred from the category 'iaas'; the source record states no identity cost, so this is a class assumption, not evidence","country":null},"reliability_note":"The most durable and operationally boring store in the dossier — no expiry, no pause, no deletion. The catch is throughput: 25 RCU is 25 strongly-consistent 4 KB reads/sec, which is a hard ceiling no amount of sharding within the free tier escapes.","confidence":"reported","confidence_note":"One page read moves it to documented.","evidence":[{"url":"https://docs.aws.amazon.com/whitepapers/latest/how-aws-pricing-works/get-started-with-the-aws-free-tier.html","date":"2026-10-21","proved":"'Always Free ... Amazon DynamoDB: Up to 200 million requests per month (25 write capacity units (WCUs) and 25 read capacity units (RCUs)); 25 GB of storage.'"},{"url":"https://aws.amazon.com/dynamodb/pricing/","date":"2026-10-21","proved":"'the first 25 GB of storage are included in the AWS Free Tier'; 'The first 25 GB of storage are included in the AWS Free Tier in each AWS Region'; 'The AWS Free Tier includes 25 WCUs and 25 RCUs'"},{"url":"https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Constraints.html","date":"2026-10-21","proved":"'The maximum item size in DynamoDB is 400 KB, which includes both attribute name binary length (UTF-8 length) and attribute value lengths'"},{"url":"https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/CapacityUnitCalculations.html","date":"2026-10-21","proved":"'A binary value must be encoded in base64 format before it can be sent to DynamoDB, but the value's raw byte length is used for calculating size'; 'All items in DynamoDB require 100 bytes of storage overhead per item'"},{"url":"https://aws.amazon.com/ec2/pricing/on-demand/","date":"2026-10-21","proved":"'AWS customers receive 100 GB of free data transfer out to the internet free each month, aggregated across all AWS Services and Regions'"},{"url":null,"date":"2026-10-21","proved":"arithmetic: 25 RCU x 4 KB = 100 KB/s = 8.64 GB/day of reads — 58x short of 500 GB/day, and this is the BEST op-to-byte ratio among the metered-capacity stores"}],"verdict":"fails-egress","verified_at":"2026-10-21T00:00:00.000Z","notes":"25 GB of storage, always free (does not expire), plus 25 WCU and 25 RCU provisioned capacity and ~200M requests/month","extras":{"dead_end":{"failure_class":"retention","why":"25 GB of storage, always free (does not expire), plus 25 WCU and 25 RCU provisioned capacity and ~200M requests/month","retry_when":null,"first_recorded":"2026-10-21"}},"binding":"none","binding_note":"no constraint of a named kind was recorded; the verdict rests on the quota sentence rather than on a named limit"},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":25,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"}],"unknown":[["$.evidence[5].url","private-url"],["$.extras.dead_end.retry_when","process"],["$.free_tier.notes","process"],["$.identity_cost.kind","identity-defaulted"],["$.per_object_cap.notes","not-extracted"],["$.per_object_cap.stated","not-extracted"],["$.retention.notes","not-extracted"],["$.retention.stated","not-extracted"]],"history":[],"drift":[]}