Speckle MCP server and API connector for AI agents

Q: How do I connect Speckle to Claude, ChatGPT or Cursor?

Add the MCP endpoint https://byok-speckle.connectorbay.com/mcp to your client's MCP, connector or integration settings (streamable HTTP, no OAuth). For REST, POST JSON to https://byok-speckle.connectorbay.com/v1/tools/ ; the OpenAPI description is at /openapi.json. For OpenAI function calling, load https://connectorbay.com/openai/byok-speckle.json.

Try asking

Real questions, and the tools your agent calls to answer them.

Which Speckle account is my token connected to?

Tools called

get_active_user

Which Speckle workspaces am I a member of?

Tools called

list_my_workspaces

Which Speckle projects do I have?

Tools called

list_my_projects

Tell me about Speckle project ad9c9929e6

Tools called

get_project

What models are in Speckle project ad9c9929e6?

Tools called

list_project_models

What changed recently in Speckle project ad9c9929e6?

Tools called

list_project_versions

About

Speckle (BYOK) lets an AI assistant read your own Speckle data through the Speckle API with a key you supply (Speckle personal access token (read scopes only)). Read-only: 7 tools (get_active_user, list_my_workspaces, list_my_projects, get_project, list_project_models, list_project_versions, list_model_versions). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to app.speckle.systems. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Speckle. Speckle and its logos are trademarks of their owners and are used only to say which service the connector works with.

Sources: Live from the Speckle API (app.speckle.systems) with a BYOK key; documentation: https://docs.speckle.systems/developers/api/graphql. Endpoints checked against that documentation on 2026-10-16.

Privacy

The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.

Data not collectedNo account, no profile, no stored prompts or results.

Privacy policy Terms

What it can do

7 tools, grouped by job. Every one is read-only or compute-only.

OpenAPI

Read your data7 tools

Get active userShow the Speckle account the token belongs to: id, name, company, verified flag, server role and creation date.
List my workspacesList the Speckle workspaces the token's user belongs to, with slug, the user's role, description and dates.
List my projectsList the Speckle projects the token's user participates in, newest activity first, with visibility, the user's role and the source apps used.
Get projectGet one Speckle project by id: name, description, visibility, the user's role, source apps and dates.
List project modelsList the models in a Speckle project (for example architecture, structure, MEP) with display name, description, preview image URL and dates.
List project versionsList the latest versions (commits) across all models of a Speckle project, with message, source application, author name, model and object count.
List model versionsList the versions of one model in a Speckle project, newest first, with message, source application, author name and object count.

Information

PublisherUnify Dynamics LLC

CategoryDeveloper tools

LanguagesEnglish

Built forWorldwide

CompatibilityAny MCP client · any agent · REST

Version0.1.0

MCP endpointhttps://byok-speckle.connectorbay.com/mcp

REST APIopenapi.json

SupportGet help · Status

CountryWorldwide

FunctionOther

LayerDeep connectors

Connect it to your agent

Three ways in, the same 7 tools.

MCP (Claude, Cursor, Windsurf, VS Code, any MCP client)https://byok-speckle.connectorbay.com/mcp

RESTPOST https://byok-speckle.connectorbay.com/v1/tools/<tool>

OpenAI function callinghttps://connectorbay.com/openai/byok-speckle.json

OpenAI-compatible chathttps://connectorbay.com/v1/chat/completions · how it works

Add the MCP URL in your client's connector, MCP or integration settings (streamable HTTP, no OAuth).
Key: send your Speckle personal access token (read scopes only) in the X-Upstream-Key header (get one at docs.speckle.systems).
Ask a question; the agent picks the right tool and answers from the live data.

Speckle connector: questions and answers

What is the Speckle connector?

Speckle (BYOK) lets an AI assistant read your own Speckle data through the Speckle API with a key you supply (Speckle personal access token (read… It is a hosted MCP server with 7 tools such as Get active user, List my workspaces, List my projects, Get project, List project models, List project versions, published by Unify Dynamics LLC. It is independent and not affiliated with Speckle.

How do I connect Speckle to Claude, ChatGPT or Cursor?

Add the MCP endpoint https://byok-speckle.connectorbay.com/mcp to your client's MCP, connector or integration settings (streamable HTTP, no OAuth). For REST, POST JSON to https://byok-speckle.connectorbay.com/v1/tools/<tool>; the OpenAPI description is at /openapi.json. For OpenAI function calling, load https://connectorbay.com/openai/byok-speckle.json.

Do I need a Speckle account or API key?

Yes: this is a bring-your-own-key connector. Create a Speckle personal access token (read scopes only) at https://docs.speckle.systems/developers/authentication/pats and send it in the X-Upstream-Key header. ConnectorBay uses it for that one call only and never stores, logs or caches it.

Is Speckle read-only?

Yes. Every tool reads or computes. Nothing is created, changed, sent, paid or deleted in your account.

Is the Speckle connector free?

Yes. It is free to use within the published rate limits; an optional Pro key raises them. There is no account to create.

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Documentation

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Speckle (BYOK) — connector documentation

MCP endpoint: https://byok-speckle.connectorbay.com/mcp
REST API: POST https://byok-speckle.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://byok-speckle.connectorbay.com/openapi.json
Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
Authentication: your own Speckle Speckle personal access token (read scopes only), sent in the X-Upstream-Key header of every request (never stored, logged or cached)
Health: https://byok-speckle.connectorbay.com/health · Tool schemas: https://byok-speckle.connectorbay.com/tools.json
Publisher: Unify Dynamics LLC · connectorbay.com/byok-speckle · agent@connectorbay.com

What Speckle (BYOK) is for

Speckle (BYOK) lets an AI assistant read your own Speckle data through the Speckle API with a key you supply (Speckle personal access token (read scopes only)). Read-only: 7 tools (get_active_user, list_my_workspaces, list_my_projects, get_project, list_project_models, list_project_versions, list_model_versions). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to app.speckle.systems. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Speckle. Speckle and its logos are trademarks of their owners and are used only to say which service the connector works with.

Ask your assistant things like:

"Which Speckle account is my token connected to?"
"Which Speckle workspaces am I a member of?"
"Which Speckle projects do I have?"
"Tell me about Speckle project ad9c9929e6"
"What models are in Speckle project ad9c9929e6?"
"What changed recently in Speckle project ad9c9929e6?"

What it does

get_active_user: Show the Speckle account the token belongs to: id, name, company, verified flag, server role and creation date. The email address is not requested.
list_my_workspaces: List the Speckle workspaces the token's user belongs to, with slug, the user's role, description and dates.
list_my_projects: List the Speckle projects the token's user participates in, newest activity first, with visibility, the user's role and the source apps used. Page with the cursor.
get_project: Get one Speckle project by id: name, description, visibility, the user's role, source apps and dates.
list_project_models: List the models in a Speckle project (for example architecture, structure, MEP) with display name, description, preview image URL and dates. Page with the cursor.
list_project_versions: List the latest versions (commits) across all models of a Speckle project, with message, source application, author name, model and object count. Page with the cursor.
list_model_versions: List the versions of one model in a Speckle project, newest first, with message, source application, author name and object count. Page with the cursor.

BYOK key

You bring your own Speckle Speckle personal access token (read scopes only) (https://docs.speckle.systems/developers/authentication/pats). Your assistant sends it in the X-Upstream-Key header with each request. ConnectorBay uses it for that one call only: it is never stored, logged or cached, never shown in an answer, and it is only sent to app.speckle.systems over https, with no redirects followed. Create a key with the fewest permissions the tools need (read-only if the provider offers it), and revoke it at the provider whenever you like.

Data sources

https://docs.speckle.systems/developers/api/graphql (the API this connector calls, with a BYOK key)

Live from the Speckle API (app.speckle.systems) with a BYOK key; documentation: https://docs.speckle.systems/developers/api/graphql. Endpoints checked against that documentation on 2026-10-16.

What it is not

Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Speckle. Speckle and its logos are trademarks of their owners and are used only to say which service the connector works with. It is read-only: it never creates, changes, sends or deletes anything in your Speckle account.

Built for: Worldwide. Languages: English.

Privacy policy

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Speckle (BYOK) — Privacy Policy

Effective 24 October 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What Speckle (BYOK) is. Speckle (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own Speckle data: Read your Speckle building-model workspaces, projects, models and versions (BIM and AEC data) on Speckle Cloud with your own personal access token. You bring your own Speckle Speckle personal access token (read scopes only); the assistant sends it to us with each request.

BYOK key. The key you supply is used to make the one Speckle call you asked for. Our application does not store it, write it to a log, put it in a cache, or share it. It is sent only to app.speckle.systems, over https, and is removed from any text we return to you or your assistant. We do not follow redirects with your key. If Speckle rejects it, we say so without repeating it.

What we receive. The arguments of each tool call, the BYOK key (for that call only), the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant) and standard server logs. What Speckle receives. The request we make on your behalf, including the key and the arguments, under Speckle's own terms and privacy policy. Speckle acts at your direction and is the only recipient of the data of your request besides our hosting provider.

What we return. The answer Speckle gives for your request, trimmed to the fields the tool documents. We do not keep it: it is returned to your assistant and not stored, cached or used to train anything.

What we do not do. We do not build a profile, sell or share personal information, or keep your Speckle data. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting access logs (IP addresses, request paths and status codes) are kept for up to 30 days for security and abuse prevention; our application adds no request headers or bodies to them.

Sub-processors. Speckle (the API you call with a BYOK key, at your direction). Hosting: Vercel (United States regions).

Your rights. Because we store no personal data beyond short-lived logs, requests to access, correct or delete data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. Revoke your key at Speckle at any time to end all access.

Children. Speckle (BYOK) is a general-audience service operated by the adult using the assistant, under Speckle's own age rules.

Changes. We will post changes here with a new effective date.

Terms of service

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Speckle (BYOK) — Terms of Service

Effective 24 October 2026. These terms govern use of the Speckle (BYOK) connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

The Service. Speckle (BYOK) provides: Read your Speckle building-model workspaces, projects, models and versions (BIM and AEC data) on Speckle Cloud with your own personal access token. It is accessed through an AI assistant or directly over MCP or HTTP, and is read-only.
Your own key, your own account. You must use your own Speckle credentials and only access data you are allowed to access. Speckle's terms apply to your use of Speckle; you are responsible for complying with them, including any rate limits and permitted uses. Do not share a key you do not own.
Independent. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Speckle. Speckle and its logos are trademarks of their owners and are used only to say which service the connector works with.
No advice, no guarantees. Output is the data Speckle returns, lightly trimmed; it may be incomplete, delayed or changed by Speckle. Check important facts at the source.
Read-only. The Service does not create, change, send or delete anything in your Speckle account.
Acceptable use. Automated use within the published rate limits is welcome. Do not use the Service to access data you are not entitled to, to circumvent Speckle's controls, or to attack any system.
Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time; Speckle may change or end its API at any time.
Data. Our Privacy Policy describes what we process. In short: the BYOK key is used for the one call and not stored or logged.
Pro keys. Optional ConnectorBay Pro API keys are issued at our discretion and are separate from your Speckle key.
Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss arising from use of or reliance on the Service, including any action Speckle takes on your account. Our total liability is limited to US $100.
Governing law. California law; venue in San Mateo County, California.
Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/byok-speckle

Support

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Speckle (BYOK) support

Email agent@connectorbay.com. We answer within two business days.

MCP endpoint: https://byok-speckle.connectorbay.com/mcp
REST API: https://byok-speckle.connectorbay.com/openapi.json
Live status: https://byok-speckle.connectorbay.com/health

When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. Speckle (BYOK) never asks for them.