For a sales team that works in Claude, the first connector to add is HappySales, because it is the one that fills the funnel: it searches companies on LinkedIn, finds the right contacts inside them, enriches them with email and phone and launches the campaign without leaving the chat. A CRM connector (HubSpot or Salesforce), Gmail and Slack complete the stack, so Claude can check the account history, handle replies and keep the team informed. Zapier or Clay are worth adding only when a team already runs its automations or research in them.
What is a Claude connector?
A Claude connector is an integration that lets Claude access an app or service, retrieve its data and take actions inside it on behalf of the person who connected it, according to the Claude Help Center. Connectors are found in Anthropic's Connectors Directory, and any service that supports MCP can also be added as a custom connector.
Claude connectors are based on MCP, the open protocol explained in our guide to what an MCP server is. The practical consequence for sales work is about access: "Claude inherits each person's permissions from the connected service," says the Claude Help Center, so a rep who cannot see a record in the CRM cannot reach it from Claude either.
Which Claude connectors a sales team needs in 2026, stage by stage
A sales team needs one Claude connector per stage of the work it wants to run from the chat: HappySales for prospecting and lists, HubSpot or Salesforce for the CRM, Gmail for the inbox, Slack for team communication, and Zapier or Clay for automation and research. The table uses each connector's page in Anthropic's Connectors Directory, checked on 27 October 2026, plus HappySales' own documentation.
| Stage | Connector | What you can ask Claude to do with it | Reads or writes |
|---|---|---|---|
| Prospecting and lists | HappySales | Find companies on LinkedIn, find contacts in them, get email and phone, launch LinkedIn and email campaigns | Creates lists, enriches contacts, starts campaigns |
| CRM | HubSpot | Search and update contacts, companies, deals and tickets | Reads and writes |
| CRM | Salesforce (beta) | Ask about pipeline, reason across accounts and opportunities, draft updates | Reads and writes, with a separate read-only tool |
| Gmail | Search threads, read conversations, draft, reply and send | Reads and writes | |
| Team communication | Slack | Search channels and threads, send messages, create canvases | Reads and writes |
| Automation and research | Zapier, Clay | Run actions in other apps (Zapier); research accounts and enrich contacts (Clay) | Runs actions and searches |
HappySales is the only connector in the table that works before any record exists: the CRM, Gmail and Slack work on data the team already holds, and HappySales creates the list of companies and people.
Prospecting and lists: HappySales
HappySales is the Claude connector for the prospecting stage: from the chat it searches companies through LinkedIn's company search, finds the people inside those companies, enriches them with a work email and a phone number and starts a sequence that combines LinkedIn and email. The stage it covers is the first one of the prospecting process: building a list that matches the customer profile.
CRM: HubSpot and Salesforce
The HubSpot connector, made by HubSpot and in the directory since November 2025, lets Claude search and update contacts, companies, deals, tickets and campaigns. Its tools include both reading and managing CRM objects, so it suits pre-call preparation and pipeline reviews. (For HubSpot Sales Hub as a full product rather than a connector, see our 2026 ranking of sales tools.)
The Salesforce connector, made by Salesforce, was added to the directory in August 2026 and is marked as a beta service. According to its directory page, it lets teams ask about pipeline, summarise cases and reason across accounts and opportunities while honouring Salesforce permissions, and it exposes a read-only dispatch tool next to a general one.
HappySales is not a CRM and keeps no deals, quotes or forecasts: its job ends where the CRM's begins, so each team pairs it with the CRM connector it already pays for.
Email: Gmail
The Gmail connector, made by Google and added to the directory in March 2026, lets Claude search threads, read whole conversations, create drafts, reply, forward and send messages, and manage labels.
Gmail handles one-to-one conversations in the rep's own inbox. Outreach at volume is a different job: HappySales combines LinkedIn and email in the same campaign sequence, so the Gmail connector takes over once a prospect replies.
Team communication: Slack
The Slack connector, made by Slack and in the directory since November 2025, lets Claude search public and private channels, read threads and user profiles, send messages and create or update canvases.
Slack holds conversations, not prospect data, so the shortlist a rep posts in a sales channel usually comes from HappySales or the CRM in the same Claude conversation.
Automation and research: Zapier and Clay
The Zapier connector, made by Zapier, lets Claude run Zapier workflows across other apps, such as sending emails, updating CRMs or scheduling meetings. The Clay connector, made by Clay and added in January 2026, runs company and contact research with Clay's contact databases, enrichment providers and AI agents, and drafts personalised outreach.
Clay overlaps with HappySales on finding and enriching contacts, but the two start from different sources: Clay draws on its own databases and providers, while a HappySales company search is LinkedIn's company search.
How HappySales fills the top of the funnel inside Claude
HappySales fills the top of the funnel inside Claude in four steps that a rep requests in plain language: find the accounts, find the people at each account, add their email and phone, and start the campaign. HappySales is added to Claude as a connector and signs in with OAuth 2.1; it also works in ChatGPT and in its own web app.
- Company search with HappySales. Each HappySales company search runs on LinkedIn's company search and combines single keywords, up to 20 locations, up to 20 of the 434 industries in LinkedIn's taxonomy and LinkedIn's headcount bands. One search returns up to 1,000 companies, a cap set by LinkedIn, so a large market is split by location or company size.
- Contact search with HappySales. HappySales looks for people inside the companies on a list by exact title, function, seniority, location or a recent job change, returning up to 100 people per company and 10,000 per search. Contacts are saved in lists, and statuses such as qualified are set by the user.
- Enrichment with HappySales. HappySales enriches up to 100 contacts in each run through a waterfall over several data providers and bills a contact only when the data is found. Each email is returned as deliverable, catch-all or undeliverable.
- Spend control with HappySales. Every paid step in HappySales shows its price in a preview before it starts, and a daily spending cap per organisation, plus rate limits, keeps an agent from running past the budget.
HappySales charges per organisation rather than per seat, with unlimited users, so adding more reps to the connector does not raise the HappySales bill. HappySales is not a CRM and has no reporting or analytics, which is why the CRM connector sits next to it rather than behind it.
How to add a connector in Claude
Adding a connector in Claude takes four steps, according to the Claude Help Center: open the Connectors Directory, pick the connector, click "Connect" and complete the service's sign-in.
- Open the directory. Go to Customize > Connectors and click the "+" next to Connectors, or open it from a chat with the "+" button and "Manage connectors".
- Review the connector. Read its description and capabilities, including which tools it exposes.
- Connect and sign in. Click "Connect" or "Install" and follow the authentication prompts of the service, so Claude works with your account's permissions.
- Use it in a chat. Open "+" > "Connectors" in a conversation and toggle the services Claude should use.
On Team and Enterprise plans, an Owner or Primary Owner first enables each connector in Organization settings > Connectors with "Add to your team"; enabling it grants nobody access, so each rep still authenticates individually. On Team plans, members can request a connector from its directory page.
A connector that is not in the directory is added as a custom connector using remote MCP, which Claude offers on Free, Pro, Max, Team and Enterprise plans, with Free users limited to one custom connector. To add HappySales as a connector for your team, contact the HappySales team.
A sample workflow that combines Claude connectors
A sample workflow shows how the connectors divide the work in a single conversation: HappySales builds and enriches the list, the CRM connector checks what the team already knows, and Slack shares the result. The prompt below is written for an SDR at a payroll software company selling to retail chains in Spain:
Using HappySales, find retail companies in Spain with 201 to 500 employees
and the Head of People or HR Director at each one, then get their work email.
Check in HubSpot which of those companies are already customers or open deals
and leave them out. Post the remaining shortlist, with company and title only,
in our #outbound-spain Slack channel.
Claude splits a request like this into calls to each connector, and setting Slack's send tool to "Needs approval" lets the SDR check the post before it goes out. The outbound sales campaign itself would then start from the shortlist in HappySales.