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AWS Lambda functions, versions, aliases, layers and settings as MCP tools.
About
AWS Lambda functions, versions, aliases, layers and settings as MCP tools.
Security Report
serverlessrun is a clean, well-tested read-oriented AWS Lambda MCP server that requires AWS credentials via environment variables and validates arguments with zod. Its permissions (network HTTP to AWS endpoints, env vars for credentials, and a Lambda invoke tool) match its stated purpose, and no exfiltration, hardcoded secrets, or shell execution were found. Minor notes: the default signer is unconfigured so live calls cannot succeed out of the box, and invoke_function can trigger side-effecting function executions that users should be aware of. Supply chain analysis found 4 known vulnerabilities in dependencies (0 critical, 2 high severity). Package verification found 1 issue.
8 files analyzed · 9 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-cloudcorprecords-serverlessrun": {
"env": {
"AWS_REGION": "your-aws-region-here",
"AWS_ACCESS_KEY_ID": "your-aws-access-key-id-here",
"AWS_SESSION_TOKEN": "your-aws-session-token-here",
"AWS_SECRET_ACCESS_KEY": "your-aws-secret-access-key-here"
},
"args": [
"-y",
"@reneturcios/serverlessrun"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
serverlessrun
AWS Lambda as MCP tools, shaping requests for the documented Lambda REST API. serverlessrun is a clean-room rebuild of the core surface of the aws-lambda MCP server, under a new name: the same tool names and request shapes, fresh code, no copied branding.
Tools (core subset, 10)
list_functions, get_function, invoke_function,
list_versions_by_function, get_alias, list_aliases,
list_layers, get_layer_version, list_event_source_mappings,
get_account_settings.
Not in this subset: function create/update/delete and code upload, configuration and policy management, tags, concurrency controls, function URLs, destinations, event source mapping writes, and code signing.
How it works
Every tool shapes a documented Lambda REST request (API version
2015-03-31) and hands it to an injectable executor:
execute({ service: "lambda", operation, path, method, body, query }).
Library users can inject their own executor or signer to run against
real AWS with their own signing stack.
Setup
export AWS_ACCESS_KEY_ID=...
export AWS_SECRET_ACCESS_KEY=...
export AWS_REGION=us-east-1 # optional, this is the default
export AWS_SESSION_TOKEN=... # optional
Honest limitation: this rebuild ships no SigV4 signer of its own.
With credentials set but no signer injected, calls fail with
SigV4 signing not configured: inject a signer/executor. With no
credentials, calls fail with an error naming AWS_ACCESS_KEY_ID.
CLI
npx @reneturcios/serverlessrun list_functions '{}'
npx @reneturcios/serverlessrun mcp # stdio MCP server
Each tool name is a subcommand taking one JSON object argument.
MCP client config
{
"mcpServers": {
"serverlessrun": {
"command": "npx",
"args": ["-y", "@reneturcios/serverlessrun", "mcp"],
"env": { "AWS_ACCESS_KEY_ID": "...", "AWS_SECRET_ACCESS_KEY": "..." }
}
}
}
Docker
docker run -i -e AWS_ACCESS_KEY_ID -e AWS_SECRET_ACCESS_KEY ghcr.io/cloudcorprecords/serverlessrun
Development
npm install
npm run build
npm test
License
MIT
Reviews
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