B77 · for Claude

Claude connectors

B77 is the App Store for your AI assistant. A phone ships with built-in apps and you install more to extend it; Claude ships with built-in abilities and B77 apps — Claude connectors — extend it with your own tools and data.

Every app is a hosted MCP server: nothing to install locally, sign in with OAuth, EU-hosted and curated by B77.

Top Claude connectors How to install Browse all apps

The mechanism

What a Claude connector is

A Claude connector is a remote MCP server that Claude can call from inside a conversation. You add it once by URL, sign in, and Claude gains the tools that server exposes — reading your data, creating records, running actions — while you stay in the chat. One B77 app is one connector.

The same connector works in claude.ai, Claude Desktop and Claude Code: add it in one place and it follows your account. Claude Desktop can additionally run local MCP servers you configure by hand in a config file; B77 apps need none of that — they are already running, so there is nothing to install, update or keep alive on your machine.

Setup

Install in Claude, in 3 steps

Sign in with your B77 account once. No local install, no API keys to paste.

  1. Step 1

    Open the app page on B77 and click Install — copy the connection URL it shows.

  2. Step 2

    In Claude: main menu → Customize → Connectors → Add → Add custom connector.

  3. Step 3

    Name it after what it does, paste the URL into "Remote MCP server URL", sign in with your B77 account. The same connector shows up in claude.ai, Claude Desktop and Claude Code.

18 apps for Claude

Top Claude connectors

Ranked by rating, installs and freshness — the same score as the B77 top chart.

See the top chart →
  1. 1
    N

    Nightscout

    B77

    (7)
    Install
  2. 2
    T

    Time

    B77

    (3)
    Install
  3. 3
    K

    Knowledge Base

    B77

    (1)
    Install
  4. 4
    S

    SEO Content Factory

    B77

    (1)
    Install
  5. 5
    G

    Google Search Console

    B77

    (1)
    Install
  6. 6
    L

    LinkedIn Ads

    B77

    (0)
    Install
  7. 7
    P

    Photo Library

    B77

    (0)
    Install
  8. 8

    Fibalo

    Fibalo

    (0)
    Install
  9. 9
    F

    File Storage

    B77

    (0)
    Install
  10. 10
    T

    Teamwork

    B77

    (0)
    Install
  11. 11
    G

    Google News

    B77

    (0)
    Install
  12. 12
    A

    AI Media Studio

    B77

    (0)
    Install
  13. 13
    K

    Kinnovis Self-Storage

    B77

    (0)
    Install
  14. 14
    F

    Feedback

    B77

    (0)
    Install
  15. 15
    W

    Web Analytics

    B77

    (0)
    Install
  16. 16
    C

    Chess Results

    B77

    (0)
    Install
  17. 17
    G

    Google Ads

    B77

    (0)
    Install
  18. 18
    A

    Apple Search Ads

    B77

    (0)
    Install
Browse all apps → See the top chart → How B77 keeps access safe →

In Claude

What a real conversation looks like

Claude
How was last night?

Used Nightscout

Pretty steady. You hovered around 110 mg/dL most of the night, with one quick rise around 4am that came back down on its own. No alerts. Time-in-range was 94%.
And the whole week?

Used Nightscout

78% time-in-range over the last 7 days — up 4 points from the prior week. Wednesday and Saturday were the rough ones, both after dinner.

FAQ

Common questions about Claude on B77

What data can Claude access through connectors?

Only what the app's OAuth scope grants, and only what the app page lists under "What this app can see". Claude cannot browse your account beyond those tools, and you can revoke a connector at any time from your B77 account. Our guide on the blog explains it in detail.

Do connectors work in Claude Desktop and Claude Code?

Yes. A custom connector added to your Claude account is available in claude.ai, Claude Desktop and Claude Code — no separate setup per surface. Desktop can also run local MCP servers via its config file, but B77 apps are remote and need no local configuration.

Do I need a paid Claude plan?

Custom connectors are a Claude feature, so check Claude's current plan matrix for which plans include them. B77 apps themselves are free to add unless the app page says otherwise.

Is it safe?

Every app signs you in with OAuth — B77 never sees your passwords, tokens are scoped to what the app lists, and you can revoke access at any time. Apps are hosted in the EU and curated by B77 before they are listed. See "How B77 keeps access safe" for the full picture.

Claude connectors vs Claude MCP servers vs integrations — same thing?

Yes. They are three names for one mechanism: a remote MCP server that Claude connects to. Anthropic's UI says "connectors", developers say "MCP servers", marketing pages say "integrations" — a B77 app is all three.