{"name":"AWS_REGION","slug":"aws-region","family":"env","title":"Environment variables","noun":"environment variable","description":"Bedrock no longer refuses to start when no region or base URL is configured.","description_source":"entry","described_by":{"version":"2.1.228","anchor":"bedrock-no-longer-fails-when-neither-a-region-nor-a-base-url"},"presence":{"first_seen":"2.1.138","removed_in":null,"in_current_build":true,"newest_mined":"2.1.308","builds":149,"mined_builds":149,"first_cited":{"version":"2.1.172","released_at":"2026-06-10 17:55:48","spans":2}},"aliases":[],"entries":[{"version":"2.1.232","anchor":"a-malformed-aws-region-env-var-is-now-ignored-and-reported","heading":"A malformed AWS region env var is now ignored and reported","line":"A malformed AWS region variable is now ignored, falling back to us-east-1.","released_at":"2026-08-13 21:30:53","reason":"named in this entry, found in this entry's text"},{"version":"2.1.232","anchor":"cloud-region-environment-variables-are-validated-before-use","heading":"Cloud region environment variables are validated before use","line":"A malformed cloud region in your environment is now ignored in favour of the default.","released_at":"2026-08-13 21:30:53","reason":"found in this entry's text"},{"version":"2.1.232","anchor":"invalid-aws-region-environment-values-are-reported-instead-o","heading":"Invalid AWS region environment values are reported instead of hidden","line":"An invalid AWS_REGION is now reported as invalid rather than silently treated as default.","released_at":"2026-08-13 21:30:53","reason":"named in this entry, found in this entry's text"},{"version":"2.1.232","anchor":"invalid-aws-region-variable-is-called-out-by-name","heading":"Invalid AWS region variable is called out by name","line":"On Bedrock, an unusable AWS region variable is now named so you can fix or unset it.","released_at":"2026-08-13 21:30:53","reason":"named in this entry, found in this entry's text"},{"version":"2.1.228","anchor":"bedrock-no-longer-fails-when-neither-a-region-nor-a-base-url","heading":"Bedrock no longer fails when neither a region nor a base URL is set","line":"Bedrock no longer refuses to start when no region or base URL is configured.","released_at":"2026-08-11 17:45:45","reason":"named in this entry, found in this entry's text"},{"version":"2.1.202","anchor":"aws-and-gcp-credential-environment-variables-forwarded-to-su","heading":"AWS and GCP Credential Environment Variables Forwarded to Subagents","line":null,"released_at":"2026-07-06 20:41:23","reason":"found in this entry's text"},{"version":"2.1.172","anchor":"aws-region-display-shows-configuration-source","heading":"AWS Region Display Shows Configuration Source","line":null,"released_at":"2026-06-10 17:55:48","reason":"found in this entry's text"},{"version":"2.1.90","anchor":"claude-platform-on-aws-provider","heading":"Claude Platform on AWS Provider","line":null,"released_at":"2026-04-01 23:31:39","reason":"found in this entry's text"}],"entries_total":8,"docs":[{"source":"api","path":"api\/errors","title":"errors","documented":false},{"source":"api","path":"build-with-claude\/claude-in-amazon-bedrock","title":"claude-in-amazon-bedrock","documented":false},{"source":"api","path":"build-with-claude\/claude-on-amazon-bedrock-legacy","title":"claude-on-amazon-bedrock-legacy","documented":false},{"source":"api","path":"build-with-claude\/claude-platform-on-aws","title":"claude-platform-on-aws","documented":false},{"source":"claude-code","path":"amazon-bedrock","title":"Claude Code on Amazon Bedrock","documented":false},{"source":"claude-code","path":"claude-apps-gateway-on-aws","title":"Deploy Claude apps gateway on AWS","documented":false},{"source":"claude-code","path":"claude-platform-on-aws","title":"Claude Code on Claude Platform on AWS","documented":false},{"source":"claude-code","path":"desktop","title":"Desktop application","documented":false},{"source":"claude-code","path":"env-vars","title":"Environment variables","documented":false},{"source":"claude-code","path":"github-actions-cloud-providers","title":"Use Claude Code GitHub Actions with cloud providers","documented":false}],"docs_total":12,"gates":[],"related":[{"name":"AWS_ACCESS_KEY_ID","slug":"aws-access-key-id","description":"gh, aws, gcloud, bq and gsutil get placeholder credentials so they authenticate through the proxy instead of failing."},{"name":"AWS_BEARER_TOKEN_BEDROCK","slug":"aws-bearer-token-bedrock","description":"Amazon Bedrock API key for authentication (see [Amazon Bedrock API keys](https:\/\/aws.amazon.com\/blogs\/machine-learning\/accelerate-ai-development-with-amazon-bedrock-api-keys\/))"},{"name":"AWS_CA_BUNDLE","slug":"aws-ca-bundle","description":"SSL certificate error message now lists the specific env var to check per tool"},{"name":"AWS_CONFIG_FILE","slug":"aws-config-file","description":"AWS SSO profile logins resolve faster via a direct fast path, falling back if anything unusual is configured."},{"name":"AWS_CONTAINER_CREDENTIALS_FULL_URI","slug":"aws-container-credentials-full-uri","description":"Claude Code's saved check that a Bedrock model is reachable is now tied to your AWS profile, keys, role and credential settings"},{"name":"AWS_CONTAINER_CREDENTIALS_RELATIVE_URI","slug":"aws-container-credentials-relative-uri","description":"Stand-in credential values for gh, AWS and gcloud are defined, with substitution rules unsettled."},{"name":"AWS_DEFAULT_REGION","slug":"aws-default-region","description":"Bedrock no longer refuses to start when no region or base URL is configured."},{"name":"AWS_ENDPOINT_URL","slug":"aws-endpoint-url","description":"AWS and Google custom endpoint variables are now forwarded and scrubbed deliberately."},{"name":"AWS_ENDPOINT_URL_BEDROCK","slug":"aws-endpoint-url-bedrock","description":"AWS and Google custom endpoint variables are now forwarded and scrubbed deliberately."},{"name":"AWS_ENDPOINT_URL_BEDROCK_RUNTIME","slug":"aws-endpoint-url-bedrock-runtime","description":"AWS and Google custom endpoint variables are now forwarded and scrubbed deliberately."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/env\/aws-region","family_url":"https:\/\/changelogs.core-directive.com\/reference\/env.json"}