Amazon Bedrock Knowledge Base MCP
Official AWS Labs MCP for Bedrock Knowledge Base retrieval: discover knowledge bases, query with natural language, filter by data source, and rerank results. Apache-2.0 within awslabs/mcp monorepo. Tight tool surface focused on RAG over AWS-managed KBs.
“Official AWS Labs MCP for Bedrock Knowledge Base retrieval: discover knowledge bases, query with natural language, filter by data source, and rerank results. 3 commits on the server path in the last 30 days. Tool surface stays tight: discover, query, filter, rerank. Carries IAM permissions through to the host AWS account.”
INSTALL THIS SERVER
{
"mcpServers": {
"awslabs.bedrock-kb-retrieval-mcp-server": {
"command": "uvx",
"args": [
"awslabs.bedrock-kb-retrieval-mcp-server@latest"
],
"env": {
"AWS_PROFILE": "default",
"AWS_REGION": "us-east-1"
}
}
}
}
{
"mcpServers": {
"awslabs.bedrock-kb-retrieval-mcp-server": {
"command": "uvx",
"args": [
"awslabs.bedrock-kb-retrieval-mcp-server@latest"
],
"env": {
"AWS_PROFILE": "default",
"AWS_REGION": "us-east-1"
}
}
}
}
{
"mcpServers": {
"awslabs.bedrock-kb-retrieval-mcp-server": {
"command": "uvx",
"args": [
"awslabs.bedrock-kb-retrieval-mcp-server@latest"
],
"env": {
"AWS_PROFILE": "default",
"AWS_REGION": "us-east-1"
}
}
}
}
{
"mcpServers": {
"awslabs.bedrock-kb-retrieval-mcp-server": {
"command": "uvx",
"args": [
"awslabs.bedrock-kb-retrieval-mcp-server@latest"
],
"env": {
"AWS_PROFILE": "default",
"AWS_REGION": "us-east-1"
}
}
}
}
{
"mcpServers": {
"awslabs.bedrock-kb-retrieval-mcp-server": {
"command": "uvx",
"args": [
"awslabs.bedrock-kb-retrieval-mcp-server@latest"
],
"env": {
"AWS_PROFILE": "default",
"AWS_REGION": "us-east-1"
}
}
}
}
4 TOOLS AVAILABLE
OUR ASSESSMENT
- Apache-2.0 licence.
- Official AWS Labs maintenance.
- Reranking support via Bedrock reranker models (separate IAM permission).
- Filter by data source for multi-source KBs.
- Five-client config coverage via awslabs/mcp install instructions.
- 3 commits on the path in the last 30 days, lower cadence than the parent monorepo headline figure.
- Image content from KBs is excluded from query results.
- Requires Bedrock KB and (optionally) reranker IAM permissions on the host account.
- Pricing is the AWS Bedrock pricing model (per-request; reranker requests are priced separately).
The server uses the host AWS credentials chain to query Bedrock KBs. Scope the IAM role to the specific KB IDs the agent should access; deny wildcard ARNs. Reranking adds a separate IAM permission boundary (Bedrock model invocation). For production agents, run the MCP under a dedicated AWS profile with read-only KB access and explicit reranker model allow-lists.
Teams with content already indexed in Bedrock Knowledge Bases who want agents to retrieve and cite from the same KB the production application uses; RAG workflows where retrieval lives inside AWS for compliance reasons (data residency, IAM-scoped access); operators evaluating Bedrock reranking models against a base KB query baseline.
TECHNICAL DETAILS
ADOPTION METRICS
// Reading this8,924 stars on the awslabs/mcp parent monorepo. 3 commits on the Bedrock KB server path in the last 30 days.
// Reading thisFourth-ranked in ai-ml. Tier 2 cadence; Tier 1 vendor signal.
SOURCES & VERIFICATION
We don't take any single directory's word for it. Before scoring, we cross-reference 5 public MCP sources, install the server ourselves against the clients we cover, and record when we last re-verified.
The same server, 5 different lenses. We reconcile these signals into our editorial score, which is why our number sometimes diverges from a directory-aggregate star count.
| Source | Their rating | Their star count | Their downloads | Last synced |
|---|---|---|---|---|
| AutomationSwitch This page | 4.1editorial | 8,924 | — | MAY 1, 2026 |
| PulseMCP | — unrated | unavailable | unavailable | MAY 1, 2026 |
| MCP.so | — unrated | unavailable | unavailable | MAY 1, 2026 |
| Glama | — unrated | unavailable | unavailable | MAY 1, 2026 |
| Smithery | — unrated | unavailable | unavailable | MAY 1, 2026 |
| Official MCP Registry | — unrated | unavailable | unavailable | MAY 1, 2026 |
// Counts are directory-reported; we don't adjust them. Discrepancies usually come from different snapshot times or star-caching.
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