io.github.localstack/localstack-mcp-server
NPM · @LOCALSTACK/LOCALSTACK-MCP-SERVER · SCANNED AUG 7
A LocalStack MCP Server providing essential tools for local cloud development & testing
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →
Supply Chain Security80
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects uuid 10.0.0, reached via dockerode > uuid. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- Dependency health was assessed across the 246 of 253 dependencies we could resolve, so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (Apache-2.0).Pass
- Actively maintained (last published 13 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability74
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 2540 tokens (~181/item across 14 items; 14 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
npm · @localstack/localstack-mcp-server
claude mcp add localstack-localstack-mcp-server -- npx -y @localstack/localstack-mcp-server
codex mcp add localstack-localstack-mcp-server -- npx -y @localstack/localstack-mcp-server
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"localstack-localstack-mcp-server": {
"type": "local",
"command": [
"npx",
"-y",
"@localstack/localstack-mcp-server"
],
"enabled": true
}
}
} openclaw mcp add localstack-localstack-mcp-server --command npx --arg -y --arg @localstack/localstack-mcp-server
mcp_servers:
localstack-localstack-mcp-server:
command: "npx"
args: ["-y", "@localstack/localstack-mcp-server"] {
"mcpServers": {
"localstack-localstack-mcp-server": {
"command": "npx",
"args": [
"-y",
"@localstack/localstack-mcp-server"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 6 Aug 26 +30
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- Schema quality: unverified → 100 ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- First check of Schema quality: good functional
- First check of Schema quality: fail functional
- First check of Schema quality: fail functional
- First check of Tool coverage: 100 functional
- 2 Aug 26 +28
- CVE-2026-41907 affects this package: high ▼ security
- Provenance: unverified → fail ▼ security
- Known CVEs: unverified → fail ▼ security
- Install scripts: unverified → pass ▲ security
- Malware scan: unverified → pass ▲ security
- Stability: Stability not yet verified: our sandbox run of this package did not complete, so we have no schema to compare. security
- License: unverified → pass ▲ functional
- Dependency health: unverified → partial ▲ functional
- Maintenance: unverified → pass ▲ functional
- Capabilities: Protocol version not yet verified: our sandbox run of this package did not complete, so we never saw its MCP handshake. functional
- Tool coverage: Tool coverage not yet verified: our sandbox run of this package did not complete, so we have no tool definitions to assess. functional
- Schema quality: Schema quality not yet verified: our sandbox run of this package did not complete, so we have no schema to assess. functional
- Licence: Apache-2.0 functional
- 1 Aug 26 −1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 −18
- Malware scan: pass → unverified ▼ security
- 27 Jul 26 24
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 7 Aug 2026 · Analysed npm/@localstack/[email protected]
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-w5hq-g745-h8pq | CVE-2026-41907 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | yes |
Dependencies 246 packages
| Packages resolved | 246 |
|---|---|
| Deprecated | 216 |
| Stale | 70 |
| Tree resolution | Partial |
The dependency tree was only partially resolved, so these counts may be incomplete.
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
localstack-app-inspector LocalStack App Inspector ~553
Query and manage App Inspector traces, spans, and events to review deployed LocalStack applications
| Name | Type | Req | Description |
|---|---|---|---|
| account_id | string | – | Filter traces or spans by LocalStack AWS account ID. |
| action | string | yes | The App Inspector action to perform. Typical debugging flow: get-status, set-status to enabled if needed, run AWS workload, list-traces, list-spans for a trace, then list-events or list-iam-events fo… |
| arn | string | – | Filter traces or spans by resource ARN. This value is not sent to analytics. |
| end_time_unix_nano | number | – | Filter traces or spans by end timestamp in Unix nanoseconds. |
| event_id | string | – | Event ID. Required for get-event. |
| event_name | string | – | Filter events by event name. |
| event_type | string | – | Filter events by event type, e.g. iam.policy_evaluation. |
| limit | number | – | Maximum number of results to return (1-1000) |
| operation_name | string | – | Filter by operation name (e.g., 'CreateBucket') |
| pagination_token | string | – | Pagination cursor from a previous response |
| parent_span_id | string | – | Filter traces or spans by parent span ID. |
| region | string | – | Filter by AWS region (e.g., 'us-east-1') |
| resource_name | string | – | Filter by resource name |
| service_name | string | – | Filter traces or spans by AWS service name, e.g. lambda, s3, sqs. |
| span_id | string | – | Span ID. Required for get-span, list-events, get-event, and list-iam-events. For list-events/list-iam-events, use '*' to query across all spans. |
| span_ids | array | – | Span IDs to delete for delete-spans. Omit to delete all spans in the trace scope. |
| start_time_unix_nano | number | – | Filter traces or spans by start timestamp in Unix nanoseconds. |
| status | string | – | Status to set. Required for set-status. Use enabled before running a workload you want to inspect. |
| status_code | number | – | Filter traces or spans by status code. |
| trace_id | string | – | Trace ID. Required for get-trace, list-spans, get-span, delete-spans, list-events, get-event, and list-iam-events. For list-spans/list-events/list-iam-events, use '*' to query across all traces. |
| trace_ids | array | – | Trace IDs to delete for delete-traces. Omit to delete all traces. |
| version | number | – | Filter traces or spans by App Inspector schema version. |
No output schema declared.
No examples provided.
localstack-aws-client LocalStack AWS Client ~71
Executes an AWS CLI command against the running LocalStack container using the 'awslocal' wrapper.
| Name | Type | Req | Description |
|---|---|---|---|
| command | string | yes | The AWS CLI command to execute (e.g., 's3 ls', 'dynamodb list-tables'). Do not include 'awslocal' or 'aws'. |
No output schema declared.
No examples provided.
localstack-aws-replicator LocalStack AWS Replicator ~334
Replicate external AWS resources into a running LocalStack instance using the AWS Replicator HTTP API.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | The AWS Replicator action to perform: start a job, check job status, list jobs, or list supported resource types. |
| job_id | string | – | Replication job id. Required for the status action. |
| replication_type | string | – | Replication job type. Use SINGLE_RESOURCE for one resource, or BATCH for supported batch jobs such as SSM parameters under a path prefix. |
| resource_arn | string | – | Full ARN of the resource to replicate. Only supported for SINGLE_RESOURCE jobs and mutually exclusive with resource_type/resource_identifier. |
| resource_identifier | string | – | CloudControl identifier for the resource to replicate, such as a VPC ID (vpc-...), SSM parameter name, IAM role name, or ECR repository name. Required when using resource_type and mutually exclusive… |
| resource_type | string | – | CloudFormation resource type to replicate, e.g. AWS::EC2::VPC or AWS::SSM::Parameter. Use this with resource_identifier, or provide resource_arn instead. |
| target_account_id | string | – | Optional LocalStack target AWS account id override. LocalStack defaults to account 000000000000, so this is only needed when replicating into a non-default account namespace. |
| target_region_name | string | – | Optional LocalStack target AWS region override. Defaults to the source region. |
No output schema declared.
No examples provided.
localstack-chaos-injector LocalStack Chaos Injector ~105
Injects, manages, and clears chaos faults and network effects in LocalStack to test system resilience.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | The specific chaos engineering action to perform. |
| latency_ms | number | – | Network latency in milliseconds. Required for the 'inject-latency' action. |
| rules | array | – | An array of fault rules. Required for 'inject-faults', 'add-fault-rule', and 'remove-fault-rule' actions. |
No output schema declared.
No examples provided.
localstack-cloud-pods LocalStack Cloud Pods ~71
Manages remote LocalStack Cloud Pods with following actions: save, load, delete
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | The Cloud Pods action to perform. |
| pod_name | string | – | The name of the Cloud Pod. This is required for 'save', 'load', and 'delete' actions. |
No output schema declared.
No examples provided.
localstack-deployer LocalStack Deployer ~320
Deploys or destroys AWS infrastructure on LocalStack using CDK, Terraform, or SAM.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | The action to perform: 'deploy'/'destroy' for CDK/Terraform, or 'create-stack'/'delete-stack' for CloudFormation. |
| directory | string | – | The required path to the project directory containing your infrastructure-as-code files. |
| projectType | string | – | The type of project. 'auto' (default) infers from files. Specify 'cdk', 'terraform', 'cloudformation', or 'sam' to override. |
| resolveS3 | boolean | – | For SAM deployments, whether to use --resolve-s3 when no s3Bucket is provided. |
| s3Bucket | string | – | S3 bucket name used by SAM deployments. If omitted, SAM can use --resolve-s3. |
| saveParams | boolean | – | For SAM deployments, whether to persist resolved parameters to samconfig.toml using --save-params. |
| stackName | string | – | The stack name used by CloudFormation and SAM. Required for 'create-stack'/'delete-stack' actions, and optional for SAM deploy/destroy (defaults can be inferred). |
| templatePath | string | – | The local template file path used by CloudFormation and SAM. Required for 'create-stack' if not discoverable from 'directory', and optional for SAM as a template override. |
| variables | object | – | Key-value pairs for parameterization. Used for Terraform variables (-var) or CDK context (-c). |
No output schema declared.
No examples provided.
localstack-docs LocalStack Docs Search ~49
Search the LocalStack documentation to find guides, API references, and configuration details
| Name | Type | Req | Description |
|---|---|---|---|
| limit | number | – | Maximum number of results to return. |
| query | string | yes | The search query. |
No output schema declared.
No examples provided.
localstack-ephemeral-instances LocalStack Ephemeral Instances ~168
Manage cloud-hosted LocalStack Ephemeral Instances: create, list, fetch logs, and delete.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | The Ephemeral Instances action to perform. |
| cloudPod | string | – | Optional Cloud Pod name to initialize state for create action. This is passed as CLOUD_POD_NAME. |
| envVars | object | – | Additional environment variables to pass to the ephemeral instance (create action only), translated to repeated --env KEY=VALUE flags. |
| extension | string | – | Optional extension package to preload for create action. This is passed as EXTENSION_AUTO_INSTALL. |
| lifetime | number | – | Lifetime in minutes for create action. Defaults to CLI default when omitted. |
| name | string | – | Instance name. Required for create, logs, and delete actions. |
No output schema declared.
No examples provided.
localstack-extensions LocalStack Extensions ~137
Install, uninstall, list, and discover LocalStack Extensions from the marketplace
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | list = installed extensions; install = install an extension; uninstall = remove an extension; available = browse the marketplace/extensions library |
| name | string | – | Extension package name (e.g. 'localstack-extension-typedb' or 'localstack-extension-typedb==1.0.0'). Required for install and uninstall actions. |
| source | string | – | Git URL to install from (e.g. 'git+https://github.com/org/repo.git'). Use this instead of name when installing from a repository. |
No output schema declared.
No examples provided.
localstack-iam-policy-analyzer LocalStack IAM Policy Analyzer ~97
Configures LocalStack's IAM enforcement and analyzes logs to automatically generate missing IAM policies.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | The action to perform: 'set-mode' to configure enforcement, 'analyze-policies' to generate a policy from logs, or 'get-status' to check the current mode. |
| mode | string | – | The enforcement mode to set. This is required only when the action is 'set-mode'. |
No output schema declared.
No examples provided.
localstack-logs-analysis LocalStack Logs Analysis ~157
LocalStack log analyzer that helps developers quickly diagnose issues and understand their LocalStack interactions
| Name | Type | Req | Description |
|---|---|---|---|
| analysisType | string | – | The analysis to perform: 'summary' (default), 'errors', 'requests', or 'logs' for raw output. |
| filter | string | – | Raw keyword filter. Only used with 'logs' mode. |
| lines | number | – | Number of recent log lines to fetch and analyze. |
| operation | string | – | Filter by a specific API operation (e.g., 'CreateBucket'). Requires 'service'. Used with 'requests' mode. |
| service | string | – | Filter by AWS service (e.g., 's3', 'lambda'). Used with 'errors' and 'requests' modes. |
No output schema declared.
No examples provided.
localstack-management LocalStack Management ~93
Manage LocalStack lifecycle: start, stop, restart, or check status
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | The LocalStack management action to perform |
| envVars | object | – | Additional environment variables as key-value pairs (only for start action) |
| service | string | – | The LocalStack stack/service to manage. Use 'aws' for the default AWS emulator, or 'snowflake' for the Snowflake emulator. |
No output schema declared.
No examples provided.
localstack-snowflake-client LocalStack Snowflake Client ~221
Execute SQL queries and commands against the LocalStack Snowflake emulator using the Snowflake CLI (snow). Use this to run SELECT queries, DDL (CREATE/DROP), DML (INSERT/UPDATE/DELETE), SHOW DATABASES/SCHEMAS/TABLES, DESCRIBE TABLE, and any other Snowflake SQL.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | Action to perform |
| database | string | – | Snowflake database context for this query. |
| file_path | string | – | Absolute path to a .sql file to execute. Required when action is 'execute' and query is not provided. |
| query | string | – | SQL query to execute (e.g. 'SELECT * FROM mytable', 'SHOW DATABASES', 'CREATE TABLE ...'). Required when action is 'execute' and file_path is not provided. |
| role | string | – | Snowflake role to use for this query. |
| schema | string | – | Snowflake schema context for this query. |
| warehouse | string | – | Snowflake warehouse to use for this query. |
No output schema declared.
No examples provided.
localstack-state-management LocalStack State Management ~164
Export, import, reset, and inspect LocalStack state using local file-based workflows on disk.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | The local LocalStack state action to perform through the LocalStack State REST API. Use this tool for file-based state export/import workflows on disk. Use Cloud Pods instead when the user wants remo… |
| file_path | string | – | Local file path for state export or import. Required for import. For export, defaults to ls-state-export in the MCP server working directory if omitted. |
| services | – | – | Optional AWS service names for service-level granularity, such as ['s3', 'lambda'] or 's3,lambda'. Supported for export, reset, and inspect. Import restores the services contained in the state file. |
No output schema declared.
No examples provided.