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{
  "mcpServers": {
    "localstack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@localstack/[email protected]"
      ],
      "env": {
        "LOCALSTACK_AUTH_TOKEN": "${LOCALSTACK_AUTH_TOKEN}",
        "AWS_ACCESS_KEY_ID": "${AWS_ACCESS_KEY_ID}",
        "AWS_SECRET_ACCESS_KEY": "${AWS_SECRET_ACCESS_KEY}",
        "AWS_SESSION_TOKEN": "${AWS_SESSION_TOKEN}",
        "AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID": "${AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID}",
        "AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY": "${AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY}",
        "AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN": "${AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN}"
      }
    }
  }
}

claude mcp add localstack-mcp-server -e "LOCALSTACK_AUTH_TOKEN=${LOCALSTACK_AUTH_TOKEN}" -e "AWS_ACCESS_KEY_ID=${AWS_ACCESS_KEY_ID}" -e "AWS_SECRET_ACCESS_KEY=${AWS_SECRET_ACCESS_KEY}" -e "AWS_SESSION_TOKEN=${AWS_SESSION_TOKEN}" -e "AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID=${AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID}" -e "AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY=${AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY}" -e "AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN=${AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN}" -- npx -y @localstack/[email protected]

[mcp_servers.localstack-mcp-server]
command = "npx"
args = ["-y", "@localstack/[email protected]"]
env = { "LOCALSTACK_AUTH_TOKEN" = "${LOCALSTACK_AUTH_TOKEN}", "AWS_ACCESS_KEY_ID" = "${AWS_ACCESS_KEY_ID}", "AWS_SECRET_ACCESS_KEY" = "${AWS_SECRET_ACCESS_KEY}", "AWS_SESSION_TOKEN" = "${AWS_SESSION_TOKEN}", "AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID" = "${AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID}", "AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY" = "${AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY}", "AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN" = "${AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN}" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "localstack-mcp-server": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@localstack/[email protected]"
      ],
      "enabled": true,
      "environment": {
        "LOCALSTACK_AUTH_TOKEN": "{env:LOCALSTACK_AUTH_TOKEN}",
        "AWS_ACCESS_KEY_ID": "{env:AWS_ACCESS_KEY_ID}",
        "AWS_SECRET_ACCESS_KEY": "{env:AWS_SECRET_ACCESS_KEY}",
        "AWS_SESSION_TOKEN": "{env:AWS_SESSION_TOKEN}",
        "AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID": "{env:AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID}",
        "AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY": "{env:AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY}",
        "AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN": "{env:AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "localstack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@localstack/[email protected]"
      ],
      "env": {
        "LOCALSTACK_AUTH_TOKEN": "${LOCALSTACK_AUTH_TOKEN}",
        "AWS_ACCESS_KEY_ID": "${AWS_ACCESS_KEY_ID}",
        "AWS_SECRET_ACCESS_KEY": "${AWS_SECRET_ACCESS_KEY}",
        "AWS_SESSION_TOKEN": "${AWS_SESSION_TOKEN}",
        "AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID": "${AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID}",
        "AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY": "${AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY}",
        "AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN": "${AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=localstack-mcp-server&config=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%3D%3D"
}

{
  "servers": {
    "localstack-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@localstack/[email protected]"
      ],
      "env": {
        "LOCALSTACK_AUTH_TOKEN": "${LOCALSTACK_AUTH_TOKEN}",
        "AWS_ACCESS_KEY_ID": "${AWS_ACCESS_KEY_ID}",
        "AWS_SECRET_ACCESS_KEY": "${AWS_SECRET_ACCESS_KEY}",
        "AWS_SESSION_TOKEN": "${AWS_SESSION_TOKEN}",
        "AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID": "${AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID}",
        "AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY": "${AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY}",
        "AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN": "${AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "localstack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@localstack/[email protected]"
      ],
      "env": {
        "LOCALSTACK_AUTH_TOKEN": "${LOCALSTACK_AUTH_TOKEN}",
        "AWS_ACCESS_KEY_ID": "${AWS_ACCESS_KEY_ID}",
        "AWS_SECRET_ACCESS_KEY": "${AWS_SECRET_ACCESS_KEY}",
        "AWS_SESSION_TOKEN": "${AWS_SESSION_TOKEN}",
        "AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID": "${AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID}",
        "AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY": "${AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY}",
        "AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN": "${AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN}"
      }
    }
  }
}

extensions:
  "localstack-mcp-server":
    enabled: true
    name: "localstack-mcp-server"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "@localstack/[email protected]"
    envs:
      "LOCALSTACK_AUTH_TOKEN": "${LOCALSTACK_AUTH_TOKEN}"
      "AWS_ACCESS_KEY_ID": "${AWS_ACCESS_KEY_ID}"
      "AWS_SECRET_ACCESS_KEY": "${AWS_SECRET_ACCESS_KEY}"
      "AWS_SESSION_TOKEN": "${AWS_SESSION_TOKEN}"
      "AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID": "${AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID}"
      "AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY": "${AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY}"
      "AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN": "${AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${LOCALSTACK_AUTH_TOKEN}, ${AWS_ACCESS_KEY_ID}, ${AWS_SECRET_ACCESS_KEY}, ${AWS_SESSION_TOKEN}, ${AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID}, ${AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY}, ${AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN}. The registry never accepts secret values.

This is a local package: the command runs on your machine.

Quality – / 100not scored

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygienen/a · weight 30

n/a
tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool list unknown

dependencies50 · weight 15

warn
deps.known_vulns2 advisories of lower severity or without a published fix: GHSA-vfj7-8cjw-p6xm in [email protected] (indirect, no fix yet), GHSA-w5hq-g745-h8pq in [email protected] (indirect, fixed in 11.1.1)
fail
deps.mcp_sdk_version@modelcontextprotocol/sdk 1.30.1 has 1 known advisory (GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/sdk to 1.31.0 or later
pass
deps.resolvable@localstack/[email protected] resolved: 252 packages

Tool list unknown · checked 2026-10-19 11:27 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 81 / 100

provenance80

livenessn/a

freshness65

hygiene100

+repository +namespace-matches-repo ~liveness-unmeasured ~updated-124d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

@localstack/[email protected] npm251 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 1.30.1 · advisories checked 2026-10-19

advisory	severity	package	fixed in
GHSA-6qxp-vccf-f47hMCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server	high	`@modelcontextprotocol/[email protected]`MCP SDK, indirect	fixed in `1.31.0`
GHSA-vfj7-8cjw-p6xmbraces vulnerable to stack-exhaustion denial of service through deeply nested patterns	high	`[email protected]`indirect	no fix yet
GHSA-w5hq-g745-h8pquuid: Missing buffer bounds check in v3/v5/v6 when buf is provided	moderate	`[email protected]`indirect	fixed in `11.1.1`

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

package	registry	version	runtime	secrets
`@localstack/localstack-mcp-server`	npm	0.5.0	–	`LOCALSTACK_AUTH_TOKEN`, `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`, `AWS_SESSION_TOKEN`, `AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID`, `AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY`, `AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN`

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.localstack/localstack-mcp-server",
  "icons": [
    {
      "src": "https://raw.githubusercontent.com/localstack/localstack-mcp-server/main/icon.png",
      "sizes": [
        "256x256"
      ],
      "mimeType": "image/png"
    }
  ],
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.5.0",
  "packages": [
    {
      "version": "0.5.0",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@localstack/localstack-mcp-server",
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "environmentVariables": [
        {
          "name": "LOCALSTACK_AUTH_TOKEN",
          "format": "string",
          "isSecret": true,
          "isRequired": true,
          "description": "LocalStack Auth Token (required for all LocalStack MCP tools)"
        },
        {
          "name": "AWS_ACCESS_KEY_ID",
          "format": "string",
          "isSecret": true,
          "description": "Source AWS access key used by AWS Replicator to read external AWS resources"
        },
        {
          "name": "AWS_SECRET_ACCESS_KEY",
          "format": "string",
          "isSecret": true,
          "description": "Source AWS secret access key used by AWS Replicator to read external AWS resources"
        },
        {
          "name": "AWS_SESSION_TOKEN",
          "format": "string",
          "isSecret": true,
          "description": "Optional source AWS session token used by AWS Replicator for temporary credentials"
        },
        {
          "name": "AWS_DEFAULT_REGION",
          "format": "string",
          "description": "Source AWS region used by AWS Replicator"
        },
        {
          "name": "AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID",
          "format": "string",
          "isSecret": true,
          "description": "Optional Replicator-specific source AWS access key. Use this instead of AWS_ACCESS_KEY_ID when the Replicator source account should be isolated from generic AWS config."
        },
        {
          "name": "AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY",
          "format": "string",
          "isSecret": true,
          "description": "Optional Replicator-specific source AWS secret access key. Use with AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID."
        },
        {
          "name": "AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN",
          "format": "string",
          "isSecret": true,
          "description": "Optional Replicator-specific source AWS session token for temporary credentials."
        },
        {
          "name": "AWS_REPLICATOR_SOURCE_REGION_NAME",
          "format": "string",
          "description": "Optional Replicator-specific source AWS region. Use with the AWS_REPLICATOR_SOURCE_* credential group."
        },
        {
          "name": "AWS_REPLICATOR_SOURCE_ENDPOINT_URL",
          "format": "string",
          "description": "Optional Replicator-specific source AWS endpoint URL for advanced source-account scenarios."
        },
        {
          "name": "APP_INSPECTOR",
          "format": "string",
          "description": "Set to 1 in the LocalStack container environment to enable App Inspector by default across restarts. The MCP tool can also toggle App Inspector at runtime."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/localstack/localstack-mcp-server",
    "source": "github"
  },
  "description": "A LocalStack MCP Server providing essential tools for local cloud development & testing"
}