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GreatArrow.ai

MCP server by GreatArrow.ai (Manito AI)

Keep one private memory shared across Claude, ChatGPT, Cursor and other AI clients, with sources named in answers.

OAuth sign-in (You sign in with the vendor the first time you connect)Streamable HTTP

Connect to GreatArrow.ai

GreatArrow.ai needs sign-in. Connect with its own URL:

https://www.greatarrow.ai/api/mcp

Your client opens GreatArrow.ai (Manito AI)’s sign-in the first time you use it. The token stays between your client and GreatArrow.ai (Manito AI).

Share this server

Opens this page, with the URL and setup steps.

mcp.tc/i/greatarrow-ai

About

GreatArrow.ai is a persistent memory service that stores decisions, people and projects once and makes them available to every connected AI client, including Claude, ChatGPT, Cursor, Claude Code and Codex. Answers name the sources they read. The wider product adds a morning brief, tasks, goals, money and meetings.

The server runs as a hosted streamable HTTP endpoint at https://www.greatarrow.ai/api/mcp. Web clients sign in with OAuth 2.1 and dynamic client registration; file-based clients use a personal Bearer API token. It is a paid service with a 14-day free trial.

What you can do

  • Save notes and decisions to a memory shared across AI clients
  • Recall saved context with named sources
  • Organize memory in separate workspaces per client or project
  • Reach tasks, goals and money data when those features are enabled

Tools

GreatArrow.ai lists its tools only after you sign in, so we can’t show them here. Your client lists them once you’re connected.

Example prompts

  • Save to Great Arrow: we chose Postgres for the billing service.

  • What did we decide about the Acme project last week?

  • Remind me what I saved about my client onboarding process.

  • Search my memory for notes on pricing decisions.

Set up

Every client connects to greatarrow.ai, and GreatArrow.ai (Manito AI) asks you to sign in the first time. Pick yours; the page remembers your choice.

Claude Code

  1. Run this in a terminal, in your project folder:
claude mcp add --transport http greatarrow-ai https://www.greatarrow.ai/api/mcp
  1. Start Claude Code, type /mcp, pick greatarrow-ai and choose Authenticate. A browser window opens for the GreatArrow.ai (Manito AI) sign-in.

Add --scope user to make it available in every project, not just this one.

Claude Desktop

  1. Open Customize → Connectors, click + Add, then Add custom connector.
  2. Name it GreatArrow.ai and paste this URL:
https://www.greatarrow.ai/api/mcp
  1. Click Add, then Connect, and sign in when GreatArrow.ai (Manito AI) asks.

Claude Desktop’s JSON config file only starts local servers. Remote servers go through Connectors, and connectors you add on claude.ai show up here too.

claude.ai

  1. Open the connector form on claude.ai. This button fills in the name and URL for you:
  1. Check that the URL reads https://www.greatarrow.ai/api/mcp and click Add.
  2. Click Connect and sign in when GreatArrow.ai (Manito AI) asks.

Free plans allow one custom connector. On Team and Enterprise plans an owner adds it under Organization settings → Connectors.

ChatGPT

  1. On chatgpt.com, open Settings → Security and login and turn on Developer mode.
  2. Go to chatgpt.com/plugins and click + to create an app for a remote MCP server.
  3. Paste https://www.greatarrow.ai/api/mcp as the server URL and choose OAuth. ChatGPT sends you to GreatArrow.ai (Manito AI) to sign in.

Developer mode is available on the web for Plus, Pro, Business, Enterprise and Education accounts.

Cursor

Or add it by hand to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project):

mcp.json
{
  "mcpServers": {
    "greatarrow-ai": {
      "url": "https://www.greatarrow.ai/api/mcp"
    }
  }
}

Cursor shows Needs authentication next to the server. Click the button beside it to sign in.

VS Code

Or from a terminal:

code --add-mcp '{"name":"greatarrow-ai","type":"http","url":"https://www.greatarrow.ai/api/mcp"}'

Or commit it to the repo in .vscode/mcp.json:

.vscode/mcp.json
{
  "servers": {
    "greatarrow-ai": {
      "type": "http",
      "url": "https://www.greatarrow.ai/api/mcp"
    }
  }
}

VS Code asks you to sign in the first time the server starts.

Devin Desktop

  1. Add it to ~/.config/devin/mcp_config.json (macOS and Linux) or %APPDATA%\devin\mcp_config.json (Windows):
mcp_config.json
{
  "mcpServers": {
    "greatarrow-ai": {
      "serverUrl": "https://www.greatarrow.ai/api/mcp"
    }
  }
}
  1. Refresh the MCP server list in Cascade and sign in when asked.

Devin Desktop is the new name for Windsurf. It reads serverUrl (or url) for remote servers.

Codex

codex mcp add greatarrow-ai --url https://www.greatarrow.ai/api/mcp
codex mcp login greatarrow-ai

Or edit ~/.codex/config.toml directly:

config.toml
[mcp_servers.greatarrow-ai]
url = "https://www.greatarrow.ai/api/mcp"

Gemini CLI

gemini mcp add --transport http greatarrow-ai https://www.greatarrow.ai/api/mcp

Then, inside Gemini CLI, run /mcp auth greatarrow-ai to sign in.

This adds it to the current project. Add -s user to use it everywhere.

Any client

Most clients accept this shape. Some name the URL field differently: serverUrl in Devin Desktop, httpUrl in Gemini CLI’s settings file.

{
  "mcpServers": {
    "greatarrow-ai": {
      "type": "http",
      "url": "https://www.greatarrow.ai/api/mcp"
    }
  }
}

Zed puts servers under context_servers in its settings. Cline needs "type": "streamableHttp", or it assumes SSE.

Client only starts local servers? Bridge it with npx -y mcp-remote https://www.greatarrow.ai/api/mcp.

Embed

Show GreatArrow.ai in a README or on your site. Each embed links to this page, uses the server’s own URL, and sets no cookies. How embeds work

The card, the iframe and the JSON are in English. Add ?lang=it, fr, de or es to their address for another language.

README badge

Badge preview, lightBadge preview, dark
Markdown
[![GreatArrow.ai on mcp.tc](https://mcp.tc/i/greatarrow-ai/badge.svg)](https://mcp.tc/i/greatarrow-ai)
HTML
<a href="https://mcp.tc/i/greatarrow-ai"><img src="https://mcp.tc/i/greatarrow-ai/badge.svg" alt="GreatArrow.ai on mcp.tc" height="20"></a>

It follows the reader’s light or dark mode. Add ?theme=light or ?theme=dark to fix it, or ?style=compact to show the mark without the word.

Website card

HTML
<script src="https://mcp.tc/w/greatarrow-ai.js" async></script>

The card appears where the tag is. Add data-theme="dark" or data-size="compact" to the tag to change it. The file holds everything it needs, so it makes no other requests and sets no cookies.

iframe

HTML
<iframe src="https://mcp.tc/embed/greatarrow-ai" title="GreatArrow.ai on mcp.tc" width="420" height="200" loading="lazy" allow="clipboard-write" style="border:0;border-radius:8px;max-width:100%"></iframe>

Use it on pages that don’t allow scripts. Add ?theme=light or ?theme=dark to the address to fix the colors.

JSON

The listing as data for your own pages and tools: name, tagline, the server’s own URL, tools and the “Add to” links. Any site can read it (CORS is open).

https://mcp.tc/i/greatarrow-ai.json

What each field means

AI prompt

Paste this into an AI coding assistant, such as Claude Code or Cursor, and it adds the GreatArrow.ai card to your site.

Markdown
Add the mcp.tc card for GreatArrow.ai, an MCP server, to my website. It is one static script: no build step, no package to install, no cookies.

Put this tag where the card should appear. The card renders right before it:

```html
<script src="https://mcp.tc/w/greatarrow-ai.js" async></script>
```

To show the card somewhere else, put this placeholder there and load the same script once, for example before `</body>`. Keep the link inside: visitors without JavaScript see it.

```html
<div data-mcptc="greatarrow-ai"><a href="https://mcp.tc/i/greatarrow-ai">GreatArrow.ai on mcp.tc</a></div>
```

Options:
- `data-theme="light"` or `"dark"` on the tag or the placeholder fixes the colors. Without it, the card follows the visitor’s light or dark mode.
- `data-size="compact"` gives a smaller card without the tagline.
- The CSS variable `--mcptc-max-width` on the placeholder or a parent sets the width (default `520px`).
- `?lang=` on the script URL sets the card’s language: `en`, `it`, `fr`, `de` or `es`.

If the site has a Content Security Policy, allow `script-src https://mcp.tc` and `img-src data:` (the icon is inline).

For a README or other Markdown docs, use the badge instead:

```markdown
[![GreatArrow.ai on mcp.tc](https://mcp.tc/i/greatarrow-ai/badge.svg)](https://mcp.tc/i/greatarrow-ai)
```

Reference: https://mcp.tc/embed

Change history

Its tools are behind a sign-in, so we can’t read them. Edits by its owner show up here.

Follow GreatArrow.ai and we’ll email you when something changes.

Nothing recorded yet. Edits by the server’s owner will show up here.

FAQ

Can I paste mcp.tc/i/greatarrow-ai into my MCP client?

No. mcp.tc links are pages, not server addresses. Connect with https://www.greatarrow.ai/api/mcp, so your client talks to GreatArrow.ai directly. The sign-in token only works there anyway. The quick link is for sharing: it opens this page, with setup steps for every client.

Does GreatArrow.ai need an API key or a sign-in?

Yes, you need a GreatArrow.ai (Manito AI) account. The first time your client connects, it opens GreatArrow.ai (Manito AI)’s sign-in page. The token goes straight to the server’s own URL, never through mcp.tc.

Is GreatArrow.ai a remote or a local server?

Remote. GreatArrow.ai (Manito AI) hosts it at https://www.greatarrow.ai/api/mcp, and it speaks Streamable HTTP. There’s nothing to install.

What can GreatArrow.ai do?

You can save notes and decisions to a memory shared across AI clients, recall saved context with named sources and organize memory in separate workspaces per client or project.

Which clients can use it?

Any client that supports remote MCP servers: Claude Code, Claude Desktop, claude.ai, ChatGPT in developer mode, Cursor, VS Code, Devin Desktop, Codex, Gemini CLI, Zed and others. The setup steps cover each one.

Does mcp.tc track changes to GreatArrow.ai?

Partly. GreatArrow.ai’s tools are behind a sign-in, so its History tab shows only edits by its owner. Follow the listing to get an email when it changes.

Who wrote this page?

mcp.tc’s robot read GreatArrow.ai’s own metadata (its MCP handshake, tool list and public pages), and an AI model drafted the text from it. A person reviews anything the checks can’t confirm. The text can still be wrong, so if you spot a mistake, use Report this listing on this page.

mcp.tc isn’t affiliated with GreatArrow.ai (Manito AI). This page was built from GreatArrow.ai’s public metadata, last checked on 24 Oct 2026, and an AI model wrote the description, so it can be wrong. Names and marks belong to their owners. Something off? Report this listing.