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docs(bedrock_mantle): document SigV4 + Bearer auth on Responses route

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Kent 2026-06-05 17:54:07 +08:00
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litellm/llms/bedrock_mantle/responses/transformation.py
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@ -4,10 +4,13 @@ Amazon Bedrock Mantle - Responses API backend.
gpt-5.5 / gpt-5.4 on Mantle are exposed ONLY on the `/openai/v1/responses`
path (not the standard `/v1/responses`). Payloads and SSE follow the OpenAI
Responses spec, so this config inherits OpenAIResponsesAPIConfig and overrides
only the endpoint URL and Bearer authentication.
only the endpoint URL and authentication.
Auth: AWS Bedrock API key as Bearer token (BEDROCK_MANTLE_API_KEY or the
standard AWS_BEARER_TOKEN_BEDROCK), NOT SigV4.
Auth: Bearer token (BEDROCK_MANTLE_API_KEY or the standard
AWS_BEARER_TOKEN_BEDROCK, or litellm_params.api_key) when present; otherwise
AWS SigV4 (service name "bedrock") using the standard credential chain (IAM
role / access key / profile / web identity), signed via the shared
BaseAWSLLM._sign_request after the request body is finalized.
"""
import re