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Nutshell (BYOK) — connector documentation

  • MCP endpoint: https://byok-nutshell.connectorbay.com/mcp
  • REST API: POST https://byok-nutshell.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://byok-nutshell.connectorbay.com/openapi.json
  • Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
  • Authentication: your own Nutshell Nutshell user email address, sent in the X-Upstream-Key header and the Nutshell API key in X-Upstream-Key-2 of every request (never stored, logged or cached)
  • Health: https://byok-nutshell.connectorbay.com/health · Tool schemas: https://byok-nutshell.connectorbay.com/tools.json
  • Publisher: Unify Dynamics LLC · connectorbay.com/byok-nutshell · agent@connectorbay.com

What Nutshell (BYOK) is for

Nutshell (BYOK) lets an AI assistant read your own Nutshell data through the Nutshell API with a key you supply (Nutshell user email address). Read-only: 8 tools (list_leads, list_contacts, list_accounts, list_users, list_pipelines, list_tags, list_sources, get_lead). 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.nutshell.com. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Nutshell. Nutshell 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:

  • "What leads do I have in Nutshell?"
  • "Find the Nutshell contact jane@example.com"
  • "Which companies are in Nutshell?"
  • "Who are the users in my Nutshell account?"
  • "What pipelines does Nutshell have?"
  • "Which tags exist in Nutshell?"

What it does

  • list_leads: List Nutshell leads (deals) with name, value, status, confidence, priority and dates. Search by text and sort.
  • list_contacts: List Nutshell contacts (people) with name, job title, emails, phones and created time. Search by text or email.
  • list_accounts: List Nutshell accounts (companies) with name, emails, phones, urls, addresses and employee count.
  • list_users: List the users of your Nutshell instance with name, enabled flag, admin flag and emails.
  • list_pipelines: List Nutshell pipelines (stagesets) with name, default flag and whether you can access them.
  • list_tags: List Nutshell tags with type (leads, contacts or accounts) and how many records use each.
  • list_sources: List Nutshell lead sources with name and channel.
  • get_lead: Get one Nutshell lead by id (looks like 123-leads): name, value, status, confidence, priority, dates and link.

BYOK key

You bring your own Nutshell Nutshell user email address (https://app.nutshell.com/setup/api-key). 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.nutshell.com 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

Live from the Nutshell API (app.nutshell.com) with a BYOK key; documentation: https://developers.nutshell.com/docs/getting-started. 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 Nutshell. Nutshell 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 Nutshell account.

Built for: Worldwide. Languages: English.