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AWS Bedrock provider

docs/bedrock.md

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AWS Bedrock provider

CodexBar reads AWS Cost Explorer for Bedrock spend and can compare the current month against an optional budget. When permitted, it also reads CloudWatch for rolling 14-day Claude token and request totals in the configured region.

Monitoring charges and refresh frequency

Monitoring Bedrock spend can add charges to your AWS bill. AWS currently charges $0.01 per Cost Explorer API request against the primary billing view, separately from Bedrock inference charges. See the AWS Cost Explorer pricing page for current rates. For example, 5,000 billed requests cost $50 at that rate. A CodexBar refresh is not a fixed-price unit: monthly spend, daily cost history, and paginated responses can make separate requests. Optional CloudWatch activity uses another API and is subject to CloudWatch pricing.

To reduce automatic requests, open Settings → General → Refreshing and choose a longer refresh interval or Manual. This setting applies to all providers. Manual stops the recurring timer; startup, explicit refreshes, and Refresh when the menu opens can still fetch data. Turn off that option as well to reduce menu-triggered requests. Disable AWS Bedrock in Providers to stop its app refreshes; separate CLI invocations can still make billed requests.

The optional monthly budget only changes the displayed progress. It does not cap AWS charges or stop polling.

Authentication

CodexBar supports two authentication modes, selected in Preferences → Providers → AWS Bedrock → Authentication.

Access keys (default)

Provide static AWS credentials through Settings or the environment inherited by CodexBar/the CLI:

bash
export AWS_ACCESS_KEY_ID="..."
export AWS_SECRET_ACCESS_KEY="..."
export AWS_REGION="us-east-1"

Optional:

bash
export AWS_SESSION_TOKEN="..."
export CODEXBAR_BEDROCK_BUDGET="250"

AWS profile

Resolve credentials from a named profile in ~/.aws/config / ~/.aws/credentials instead of pasting keys. Set the profile name in Settings (or via AWS_PROFILE). CodexBar shells out to the AWS CLI (aws configure export-credentials --profile <name>), so this works with SSO, assume-role, credential_process, and MFA-cached profiles — not just static credentials.

Requirements:

  • AWS CLI v2 on your PATH (CodexBar also checks /opt/homebrew/bin/aws, /usr/local/bin/aws, and ~/.local/bin/aws). Override the location with AWS_CLI_PATH if it lives elsewhere.
  • For SSO profiles, an active session (aws sso login --profile <name>). Credentials are resolved fresh on each refresh; the AWS CLI caches the SSO token, so this does not re-prompt unless the session has expired.

The profile's region is read automatically (aws configure get region); leave the Region field blank to use it, or set AWS_REGION / the Region field to override.

Relevant environment variables:

bash
export CODEXBAR_BEDROCK_AUTH_MODE="profile"   # set automatically by Settings; "keys" or "profile"
export AWS_PROFILE="work"
export AWS_CLI_PATH="/opt/homebrew/bin/aws"   # optional override

The AWS identity (from either mode) must have permission to call Cost Explorer APIs, including ce:GetCostAndUsage. Grant cloudwatch:GetMetricData to add the optional Claude activity totals. Without that permission, cost and budget tracking continue unchanged.

Data source

  • Service: AWS Cost Explorer.
  • Region: AWS_REGION or AWS_DEFAULT_REGION, defaulting to us-east-1.
  • Usage: current-month Bedrock spend and historical daily cost buckets.
  • Claude activity: rolling 14-day input tokens, output tokens, and requests from the configured region's AWS/Bedrock CloudWatch metrics. Other model families are excluded.
  • Budget: CODEXBAR_BEDROCK_BUDGET, when set to a positive dollar amount.
  • Test override: CODEXBAR_BEDROCK_API_URL replaces the Cost Explorer endpoint; use HTTPS or loopback HTTP.
  • Test override: CODEXBAR_BEDROCK_CLOUDWATCH_API_URL replaces the CloudWatch endpoint; use HTTPS or loopback HTTP.

Display

  • Shows month-to-date Bedrock spend.
  • Shows budget progress when a budget is configured.
  • Shows rolling 14-day Claude tokens and requests when CloudWatch access is available.
  • Reuses the shared inline dashboard for daily cost history when enough buckets are available.

CLI

bash
codexbar --provider bedrock --source api
codexbar --provider bedrock --format json --pretty

Troubleshooting

"No AWS Bedrock cost data available"

  • Confirm the credentials are visible to CodexBar.
  • Confirm the AWS account has Cost Explorer enabled.
  • Confirm the IAM principal can call ce:GetCostAndUsage.
  • To include Claude token/request totals, confirm the principal can call cloudwatch:GetMetricData in the configured region.
  • If using temporary credentials, include AWS_SESSION_TOKEN.
  • In profile mode, confirm the AWS CLI is installed (or set AWS_CLI_PATH) and that the profile name is correct.

"AWS profile session expired"

The profile's SSO/temporary session has expired. Run aws sso login --profile <name> (or refresh the underlying credentials) and retry.

"AWS CLI not found"

Profile mode requires AWS CLI v2. Install it (e.g. brew install awscli) or point CodexBar at the binary with AWS_CLI_PATH.

Wrong region

Set AWS_REGION or AWS_DEFAULT_REGION. Bedrock usage is regional, but Cost Explorer itself is account-level; CodexBar still needs a signing region for the request.

Key files

  • Sources/CodexBarCore/Providers/Bedrock/BedrockProviderDescriptor.swift
  • Sources/CodexBarCore/Providers/Bedrock/BedrockSettingsReader.swift
  • Sources/CodexBarCore/Providers/Bedrock/BedrockProfileCredentialProvider.swift
  • Sources/CodexBarCore/Providers/Bedrock/BedrockUsageStats.swift
  • Sources/CodexBarCore/Providers/Bedrock/BedrockAWSSigner.swift