openstudio-mcp (NatLabRockies/openstudio-mcp) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 198 tools. No publisher has claimed this listing.

Emerging

74/100

openstudio-mcp

Item: openstudio-mcp
Rating: 74
Author: M8ven

Enables natural language interaction with OpenStudio building energy simulation, allowing creation, querying, and modification of models, running EnergyPlus simulations, and analyzing results.

→ NatLabRockies/openstudio-mcp · listed on glama

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

Code Verified⚡ Live Monitored: not connected

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⚡ Connect GitHub → continuous verification on every push why connect →

Who stands behind it

NatLabRockies

Source: Glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 5 credentials: MCP_JWT_PUBLIC_KEY, OSMCP_TOKEN, OPENSTUDIO_API_TOKEN, OS_SERVER_API_TOKEN, OSMCP_FILE_SIGNING_KEY

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// environment variables

To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.

configMCP_TRANSPORT

configMCP_AUTH

configMCP_TOKENS

🔐 secretMCP_JWT_PUBLIC_KEY

configMCP_JWT_JWKS_URI

configMCP_JWT_ISSUER

configMCP_JWT_AUDIENCE

configMCP_HOST

configMCP_PORT

configMCP_PATH

configOSMCP_URL

🔐 secretOSMCP_TOKEN

configMCP_OSW_PATH

configMCP_EPW_PATH

configMCP_RUN_NAME

configMCP_POLL_SECONDS

configMCP_LOG_TAIL

configMCP_TOOL_TIMEOUT

configMCP_HARD_TIMEOUT

configMCP_SERVER_CMD

configMCP_SERVER_ARGS

configMCP_AUDIT

configMCP_AUDIT_FILE

configOPENSTUDIO_MCP_RUN_ROOT

configOSMCP_RUN_ROOT

configOPENSTUDIO_MCP_MAX_CONCURRENCY

configOSMCP_MAX_CONCURRENCY

configOSMCP_MAX_CONCURRENCY_PER_USER

configOPENSTUDIO_MCP_DEFAULT_LOG_TAIL

configOSMCP_LOG_TAIL_DEFAULT

configOSMCP_RUN_RETENTION_DAYS

configOSMCP_RETENTION_SWEEP_SECONDS

configOSCLI_GEMFILE

configOSCLI_GEM_PATH

configCOMSTOCK_MEASURES_DIR

configCOMMON_MEASURES_DIR

configGBXML_MEASURES_DIR

configGBXML_SEED_OSM

configOPENSTUDIO_MCP_MEASURES_DIR

configSKILLS_DIR

configOPENSTUDIO_MCP_INPUT_ROOT

configOSMCP_CODE_MODE

configOSMCP_SANDBOXThe default =auto mode provides the following controls on Linux,

configOSMCP_SANDBOX_NETdeny blocks outbound IP networking. allow permits it for trusted measures that must fetch external resources.

configOPENSTUDIO_MCP_SIM_TIMEOUT_SECONDS

configOSMCP_SIM_TIMEOUT_SECONDSWall-clock timeout for a simulation. 0 disables the timeout.

configOPENSTUDIO_MCP_GBXML_IMPORT_TIMEOUT_SECONDS

configOSMCP_GBXML_IMPORT_TIMEOUT_SECONDS

configOSMCP_SANDBOX_UIDAccount used for confined child processes. Values less than 1 are rejected. The default matches the sandbox user built into the image.

configOSMCP_SANDBOX_GIDAccount used for confined child processes. Values less than 1 are rejected. The default matches the sandbox user built into the image.

configOSMCP_SANDBOX_RLIMIT_FSIZEMaximum size in bytes of one file created by a child process. 0 disables this limit.

configOSMCP_SANDBOX_RLIMIT_NPROCMaximum processes/threads for the sandbox UID. 0 disables this limit.

configOSMCP_SANDBOX_RLIMIT_NOFILEOptional open-file descriptor limit.

configOSMCP_SANDBOX_RLIMIT_CPUOptional CPU-seconds limit. Disabled by default because annual simulations can be long-running.

configOSMCP_SANDBOX_RLIMIT_ASOptional virtual-memory limit. Prefer Docker memory limits because restrictive address-space limits can break EnergyPlus.

configOSMCP_MAX_UPLOAD_MB

configOSMCP_USER_QUOTA_MB

configOSMCP_UPLOAD_URL_TTL

configOSMCP_MAX_ARCHIVE_UNCOMPRESSED_MB

configOSMCP_MAX_ARCHIVE_ENTRIES

configOSMCP_PUBLIC_BASE_URL

configOSMCP_PKGS_QUOTA_MB

configOSMCP_MAX_SESSIONS

configOSMCP_SESSION_TTL

configOSMCP_MAX_TOOL_RESPONSE_MB

configOSMCP_DISABLE_KNOWLEDGE_SKILLS

configOPENSTUDIO_SERVER_URL

configOS_SERVER_URL

🔐 secretOPENSTUDIO_API_TOKEN

🔐 secretOS_SERVER_API_TOKEN

🔐 secretOSMCP_FILE_SIGNING_KEY

// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

198/198 tools missing one or more hints — openstudio_analysis_create_osa_json (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); openstudio_analysis_validate_osa_json (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); openstudio_analysis_default_output_variables (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +195 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail

The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.

// improvement guidance — verified publishers only

We have 2 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/natlabrockies/openstudio-mcp)](https://m8ven.ai/mcp/natlabrockies/openstudio-mcp)

Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.

commit: 5da87843b36d2fa39446ec3711c21a0012a025cf

code hash: 73c45aaa1a0d9c6ebdfded4a822c7d6d65c97465da9a22e9d8ac310a34aa3217

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