[Bug] Anthropic API Error: Authorization header is missing with Bedrock Bearer Token
Status Fixed / completed
Reported on v2.1.94
Maintainer reply None cached
Activity 9 comments · opened Apr 8, 2026 · closed Apr 8, 2026
Bug Description
All of a sudden I've started getting a "Authorization header is missing" error when using a Bedrock Bearer Token. :(
Environment Info
- Platform: darwin
- Terminal: Apple_Terminal
- Version: 2.1.94
- Feedback ID: 071c0acb-36c7-4048-8d53-4bb9228ec211
Errors
[{"error":"Error: Tool mcp__playwright__browser_resize not found\n at cn9 (/$bunfs/root/src/entrypoints/cli.js:1963:30437)\n at u3 (/$bunfs/root/src/entrypoints/cli.js:479:20982)\n at XA (/$bunfs/root/src/entrypoints/cli.js:479:39522)\n at a0 (/$bunfs/root/src/entrypoints/cli.js:479:50213)\n at CxH (/$bunfs/root/src/entrypoints/cli.js:479:86887)\n at A5H (/$bunfs/root/src/entrypoints/cli.js:479:85851)\n at z5H (/$bunfs/root/src/entrypoints/cli.js:479:85672)\n at oMH (/$bunfs/root/src/entrypoints/cli.js:479:82039)\n at MH (/$bunfs/root/src/entrypoints/cli.js:479:6361)\n at iV6 (/$bunfs/root/src/entrypoints/cli.js:472:6386)","timestamp":"2026-04-08T00:38:30.681Z"},{"error":"Error: Tool mcp__playwright__browser_navigate not found\n at cn9 (/$bunfs/root/src/entrypoints/cli.js:1963:30437)\n at u3 (/$bunfs/root/src/entrypoints/cli.js:479:20982)\n at XA (/$bunfs/root/src/entrypoints/cli.js:479:39522)\n at a0 (/$bunfs/root/src/entrypoints/cli.js:479:50213)\n at CxH (/$bunfs/root/src/entrypoints/cli.js:479:86887)\n at A5H (/$bunfs/root/src/entrypoints/cli.js:479:85851)\n at z5H (/$bunfs/root/src/entrypoints/cli.js:479:85672)\n at oMH (/$bunfs/root/src/entrypoints/cli.js:479:82039)\n at MH (/$bunfs/root/src/entrypoints/cli.js:479:6361)\n at iV6 (/$bunfs/root/src/entrypoints/cli.js:472:6386)","timestamp":"2026-04-08T00:38:30.681Z"},{"error":"Error: Tool mcp__playwright__browser_take_screenshot not found\n at cn9 (/$bunfs/root/src/entrypoints/cli.js:1963:30437)\n at u3 (/$bunfs/root/src/entrypoints/cli.js:479:20982)\n at XA (/$bunfs/root/src/entrypoints/cli.js:479:39522)\n at a0 (/$bunfs/root/src/entrypoints/cli.js:479:50213)\n at CxH (/$bunfs/root/src/entrypoints/cli.js:479:86887)\n at A5H (/$bunfs/root/src/entrypoints/cli.js:479:85851)\n at z5H (/$bunfs/root/src/entrypoints/cli.js:479:85672)\n at oMH (/$bunfs/root/src/entrypoints/cli.js:479:82039)\n at MH (/$bunfs/root/src/entrypoints/cli.js:479:6361)\n at iV6 (/$bunfs/root/src/entrypoints/cli.js:472:6386)","timestamp":"2026-04-08T00:38:30.681Z"},{"error":"Error: Tool mcp__playwright__browser_evaluate not found\n at cn9 (/$bunfs/root/src/entrypoints/cli.js:1963:30437)\n at u3 (/$bunfs/root/src/entrypoints/cli.js:479:20982)\n at XA (/$bunfs/root/src/entrypoints/cli.js:479:39522)\n at a0 (/$bunfs/root/src/entrypoints/cli.js:479:50213)\n at CxH (/$bunfs/root/src/entrypoints/cli.js:479:86887)\n at A5H (/$bunfs/root/src/entrypoints/cli.js:479:85851)\n at z5H (/$bunfs/root/src/entrypoints/cli.js:479:85672)\n at oMH (/$bunfs/root/src/entrypoints/cli.js:479:82039)\n at MH (/$bunfs/root/src/entrypoints/cli.js:479:6361)\n at iV6 (/$bunfs/root/src/entrypoints/cli.js:472:6386)","timestamp":"2026-04-08T00:38:30.684Z"},{"error":"Error: Tool mcp__playwright__browser_evaluate not found\n at cn9 (/$bunfs/root/src/entrypoints/cli.js:1963:30437)\n at u3 (/$bunfs/root/src/entrypoints/cli.js:479:20982)\n at XA (/$bunfs/root/src/entrypoints/cli.js:479:39522)\n at a0 (/$bunfs/root/src/entrypoints/cli.js:479:50213)\n at CxH (/$bunfs/root/src/entrypoints/cli.js:479:86887)\n at A5H (/$bunfs/root/src/entrypoints/cli.js:479:85851)\n at z5H (/$bunfs/root/src/entrypoints/cli.js:479:85672)\n at oMH (/$bunfs/root/src/entrypoints/cli.js:479:82039)\n at MH (/$bunfs/root/src/entrypoints/cli.js:479:6361)\n at iV6 (/$bunfs/root/src/entrypoints/cli.js:472:6386)","timestamp":"2026-04-08T00:38:30.684Z"},{"error":"Error: Tool mcp__playwright__browser_evaluate not found\n at cn9 (/$bunfs/root/src/entrypoints/cli.js:1963:30437)\n at u3 (/$bunfs/root/src/entrypoints/cli.js:479:20982)\n at XA (/$bunfs/root/src/entrypoints/cli.js:479:39522)\n at a0 (/$bunfs/root/src/entrypoints/cli.js:479:50213)\n at CxH (/$bunfs/root/src/entrypoints/cli.js:479:86887)\n at A5H (/$bunfs/root/src/entrypoints/cli.js:479:85851)\n at z5H (/$bunfs/root/src/entrypoints/cli.js:479:85672)\n at oMH (/$bunfs/root/src/entrypoints/cli.js:479:82039)\n at MH (/$bunfs/root/src/entrypoints/cli.js:479:6361)\n at iV6 (/$bunfs/root/src/entrypoints/cli.js:472:6386)","timestamp":"2026-04-08T00:38:30.684Z"},{"error":"Error: Tool mcp__playwright__browser_evaluate not found\n at cn9 (/$bunfs/root/src/entrypoints/cli.js:1963:30437)\n at u3 (/$bunfs/root/src/entrypoints/cli.js:479:…
Note: Content was truncated.
9 Comments
Found 2 possible duplicate issues:
This issue will be automatically closed as a duplicate in 3 days.
🤖 Generated with Claude Code
Also does not work with /setup-bedrock command
Access Token + Secret:
API key shows:
even though BedrockLimitedAccess does have such permissions:
Has this issue been fixed yet?
Also facing this issue!
Would love to have this fixed pls
seems like a bug in v2.1.94 with aws bedrock
Steps to downgrade to 2.1.92:
disable auto upgrades in claude settings.json
{
"env": {
"DISABLE_AUTOUPDATER": "1"
}
}or use bash -> export DISABLE_AUTOUPDATER=1
curl -fsSL https://claude.ai/install.sh | bash -s 2.1.92
& ([scriptblock]::Create((irm https://claude.ai/install.ps1))) 2.1.92
claude install 2.1.92 -> i used this and found this to be best since it lets claude cli handle the downgrading
Seems like the
v2.1.96that was released few minutes ago fixes this.Thanks!
Yup, works for me now with v2.1.96!
Thank you very much, the latest version of Claude Code is now fully compatible with AWS.
This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.