Landbase

The Claude MCP plugin lives in plugins/mcp-claude/. Use that folder for Claude Directory submissions; the repository also contains separate CLI plugins and a shared CLI skill library.

Bring a comprehensive B2B data platform into Claude: 300M+ verified contacts across 24M+ companies. Landbase is more than just a search engine. It's a compute platform for B2B data: describe the audience you need, then run real-time filters and calculations on the fly to find exactly the right targets.

Optimised for Claude and MCP connections, Landbase supports long-running workflows that combine search, real-time web research, AI qualification and enrichment. Ask your own questions about companies and people, assess their fit, and build context before you reach out.

Find work emails, direct dials and mobile phone numbers through one enrichment system spanning multiple providers. Landbase searches across providers for coverage and quality, then separately verifies email deliverability and phone validity.

The wider Landbase platform adds CRM enrichment and deduplication, integrations with Salesforce, HubSpot and Pipedrive, and connections to go-to-market execution platforms such as Instantly and HeyReach. Match and enrich an existing list, then take the results into your next workflow.

Use it for ICP/TAM mapping, account-based marketing lists, outbound prospecting and research, meeting and interview preparation, CRM enrichment, and business research on companies or people.

Sign up for free at landbase.com. Pricing is simple: see the credit quote for each step before it runs, and approve steps that use credits.

This Claude plugin includes nine skills and the Landbase MCP connection for search, research, qualification, enrichment and export. The CRM and execution integrations described above are available through the wider Landbase platform; they are not exposed by this plugin’s current MCP tools.

What you can ask

"Find VPs of Sales at fintech companies in London with 50-500 employees."
"Which of these companies sell to hospitals? Keep only the ones that do."
"Add industry, revenue and funding to this list."
"Find out if each company shows prices on its website."
"Find work emails for these 100 people."
"Find 500 companies like our best 20 customers."
"Here is our CRM export. Match it to Landbase and fill in the gaps."
"Give me this list as a CSV."

What the plugin contains

A connection to the Landbase MCP server at https://mcp.landbase.com/mcp (remote, Streamable HTTP). You sign in with your Landbase account through OAuth. The plugin does not store a password or an API key.
Nine skills that show Claude how to use the Landbase tools step by step:

Skill	What it does
`get-started`	Checks your account and credit balance, shows what you can ask, and lists plans when you need more credits
`build-prospect-list`	Builds a list of companies or people from a plain-language request
`qualify-list`	Checks each row against your yes/no criteria and keeps the rows that pass
`research-accounts`	Adds standard attributes or a custom research answer to each row, or looks up one company or person
`find-contact-info`	Finds work emails and phone numbers for a list of people
`import-and-match`	Uploads your own CSV or JSONL list and matches it to Landbase records
`find-lookalike-companies`	Finds companies that are similar to a set of examples
`export-list`	Makes a CSV, JSONL or Parquet file and gives you a download link
`manage-datasets`	Finds your lists, checks or cancels runs, gets back a search after a timeout, and deletes a list with your approval

The plugin has no hooks, scripts or local programs. It runs nothing on your computer.

Get started

Install the plugin from the Claude directory. In Claude Code, you can also add this repository as a marketplace:
```
/plugin marketplace add landbaseapp/landbase-agent-plugins
/plugin install landbase@landbase-plugins
```
Sign in with your Landbase account when Claude asks. If you do not have an account, sign up at landbase.com.
Ask for a list, for example "Find Heads of RevOps at B2B SaaS companies in the US with 100-500 employees."

Credits and approvals

Some operations use Landbase credits: research-mode search, qualification, custom research, contact enrichment and lookalike expansion. For each of these, Landbase first returns a credit quote, and Claude asks you before it starts. Attribute enrichment and downloads cost 0 credits, but Claude also asks you before them. A dataset deletion also needs your approval. To buy more credits, Claude can list the plans and give you a Stripe checkout link. Nothing is charged until you pay on that page.

Data and privacy

What the plugin sends to Landbase: your requests (search text, qualification questions and research prompts), the IDs of your datasets, and files that you ask Claude to upload. Landbase uses them only to do the request.
What Landbase sends back: company and people records, which can include business contact information, and the results of your workflows.
Where the data goes: the plugin connects only to the Landbase MCP server. A download link is a temporary signed link to your file in Landbase storage and expires after about 30 minutes.
Policies: Privacy policy and Terms of service.

Help

Also in this repository

plugins/cli-claude/: the landbase-cli plugin for Claude Code. It needs the landbase-cli program.
.codex-plugin/ and plugins/cli-codex/: the same plugins for Codex.
skill-library/: GTM skills for landbase-cli.

License

MIT. See LICENSE.