Fulcra

Name: Fulcra
Author: fulcradynamics

by fulcradynamicsversion 1.19.10i★ –iComputer or cloud

Registry namecom.fulcradynamics/context

Install

Overview

Description from the maker (original English)

Use your Fulcra secure context lake to collaborate with other agents, read and write data, and more

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi3 of 3 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 3 of 3 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet
PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.fulcradynamics.com/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "context": {
      "command": "uvx",
      "args": [
        "fulcra-context-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add --transport http context https://mcp.fulcradynamics.com/mcp

Or run it on your computer

claude mcp add context -- uvx fulcra-context-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "context": {
      "url": "https://mcp.fulcradynamics.com/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "context": {
      "command": "uvx",
      "args": [
        "fulcra-context-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "context": {
      "type": "http",
      "url": "https://mcp.fulcradynamics.com/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "context": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "fulcra-context-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.fulcradynamics.com/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

The server asks you to sign in before it lists its tools.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain fulcradynamics.com (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
✓ Pass
Endpoint responds
Responded in 329 ms (HTTP 401)
✓ Pass
Sign-in with OAuth
Declares OAuth sign-in, so your AI app can take you to log in
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

More stars than 0% of the other 32464 servers in this category
Published to the registry more recently than 91% of the other 32464 servers in this category
Basic checks equal to or better than 100% of the other 32464 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Fulcra safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.19.10) reached the registry 3 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, yontu

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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Runs on your computer★ 440MITUpdated 14 months ago

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Remote Desktop Commander

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Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

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yontu

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Türkçe yazı denetimi: TDK kuralları, yapay zekâ izleri, metin türüne göre üslup.

Runs on your computerUpdated today

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

fulcra-context-mcp: An MCP server to access your Fulcra Context data

This is an MCP server that provides tools and resources to call the Fulcra API using fulcra-api.

There is a public instance of this server running at https://mcp.fulcradynamics.com/mcp. The OpenAI plugin connects to https://mcp.fulcradynamics.com/openai/mcp, which serves the same tools except get_location, get_sleep, get_workouts and get_time_series. Claude's connector and plugin connect to https://mcp.fulcradynamics.com/claude/mcp: the /mcp tools without those four, with the contact panels always offered. See https://docs.fulcradynamics.com/ to get started quickly. This repo is primarily for users who need to run the server locally, want to see under the hood, or want to help contribute.

When run on its own (or when FULCRA_ENVIRONMENT is set to stdio), it acts as a local MCP server using the stdio transport. Otherwise, it acts as a remote server using the Streamable HTTP transport. It handles the OAuth2 callback, but doesn't leak the exchanged tokens to MCP clients. Instead, it maintains a mapping table and runs its own OAuth2 service between MCP clients.

Set OPENAI_APPS_CHALLENGE to the OpenAI plugin portal's domain verification token to serve it at /.well-known/openai-apps-challenge; unset, that path returns 404.

Remote Connection using Proxy

There is a public instance of this server running at https://mcp.fulcradynamics.com/. Point your OAuth2-capable MCP clients at that.

Local Connection

Example Claude Desktop config using uvx:

"mcpServers": { "fulcra_context": { "command": "uvx", "args": [ "fulcra-context-mcp@latest" ] } } }

Model-facing tools

MCP discovery provides the current tool schemas and descriptions. Contact and metadata tools include:

open_agent_contacts: open Agents I Know, optionally targeting an exact peer user ID or discovered multiparty thread ID. Opening is read-only; rendering requires a host with MCP Apps support.
update_data_type: update an owned active v1 Event/Metric type's name or description with user authorization and independent readback. It does not change schemas, records or shares; uncertain writes require reconciliation.
accept_agent_invitation on /mcp: with the user's authorization, create or reuse an empty response channel, share it narrowly with the exact inviter and post the supplied first introduction. Inspect uncertain outcomes read-only; saved attempts never automatically send/share again.
match_agent_invitations on /mcp: complete user-prepared invitations using first-message codes and actual incoming-share owners, not message claims.
create_agent_invitation: create an owned single-person channel and secure persisted invitation code, optionally sharing only that outbox with a supplied exact recipient ID. No message is sent. On /mcp, the result also includes full invitation_text and an explicit delivery next step; skills are optional. Reconcile errors before another call; do not fall back to generic creation. See the invitation workflow and host-capability boundary. /openai/mcp keeps its existing plugin contract and invitation UI.

App-only implementation tools are not part of the public model-facing reference.

Debugging / Developer Tools

Agents I Know MCP App: run this checkout through a private development tunnel and test the ChatGPT sidebar UI. The HTML ships with this server, not a separate plugin server.

Both the MCP Inspector and mcp-remote tools can be useful in debugging.

Viewing Tools

Every MCP client is different, but many abbreviate tool and parameter descriptions for summaries. To avoid confusing client models, keep the initial descriptions short (full description in one line, around 80 characters).

While developing locally, the scripts/simulate_tools.py script simulates what this might look like to an MCP client:

FULCRA_ENVIRONMENT=stdio uv run python scripts/simulate_tools.py --command "uv run fulcra-context-mcp"

Bugs / Feature Requests

Please feel free to reach out via the GitHub repo for this project or join our Discord to reach out directly. Email also works (support@fulcradynamics.com).

Fulcra

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

yontu

README from the maker

fulcra-context-mcp: An MCP server to access your Fulcra Context data

Remote Connection using Proxy

Local Connection

Model-facing tools

Debugging / Developer Tools

Viewing Tools

Bugs / Feature Requests