# Breaknorm

> Breaknorm is a B2B data API and MCP server. One connection to 41.5 million companies read from their own websites, the people who decide there with verified emails, and signals about what is changing at each one: open roles from company career systems and new leaders. Used from AI agents such as Claude and ChatGPT, over a REST API, or as exports and datasets.

Key facts:
- Company data is read from each company's public website; size comes from published figures where they exist and is otherwise marked as an estimate.
- Open roles are checked hourly from company career sites; new leaders are detected daily.
- Emails are checked at the recipient's mail server without sending mail, with a status: valid, invalid, catch_all, not_found, unknown, unreachable or skipped.
- Pricing is an allowance counted in records: every company or person shown is one record. Counting, filters and segment summaries cost nothing. Allowances roll over two windows, 5 hours and 7 days.
- Servers and databases run in Germany. A suppression list and a data processing agreement are available.

## Connect

- MCP server (Streamable HTTP): https://mcp.breaknorm.co/mcp. OAuth via app.breaknorm.co, or an API key as a bearer token.
- REST API: https://api.breaknorm.co/v1, with the same operations as the MCP tools.
- Tools (28): list_filters, list_filter_values, count_companies, segment_companies, search_companies, search_many, find_similar, get_companies, get_company_pages, get_page, check_pages, count_people, list_people_values, search_people, get_people, get_contacts, find_email, verify_email, get_email_result, start_email_job, create_list, add_to_list, remove_from_list, get_lists, start_export, get_job, cancel_job, get_usage.
- [For agents](https://breaknorm.co/for-agents): authentication, every tool with its cost, limits and good practice
- [Tool reference](https://docs.breaknorm.co/api/mcp/tools) and [tools.json](https://docs.breaknorm.co/tools.json)
- [API quickstart](https://docs.breaknorm.co/api/quickstart)

## Product

- [Companies](https://breaknorm.co/product/companies): 41.5M companies across the US, the UK and the EU. We crawl each site ourselves, so you filter on what a company actually sells, who it sells to and the tech it runs, not on a stale industry code.
- [People](https://breaknorm.co/product/people): Every title variant mapped to one function and one level, so "VP Commercial", "Head of Sales" and "CRO" are one search. Emails are checked at the mail server before they come back.
- [Signals](https://breaknorm.co/product/signals): Open roles from company career systems, new leaders, champions who moved, tech switches, and the people engaging with your space. Each signal is a record you can filter on or get pushed by webhook.
- [Local business data](https://breaknorm.co/product/local-businesses): Dentists, clinics, salons, trades, restaurants, agencies, law firms: the local businesses most databases skip. They are part of the same company database, so the same search, API and plan work for them: filter by city and what they offer, and reach the owner or manager directly, not a front-desk inbox.
- [MCP and API](https://breaknorm.co/product/mcp): Connect the MCP server to Claude, Codex or any MCP client and your agent gets clear tools for counting, searching, enriching and exporting. The same operations run over REST, and saved searches push to webhooks.
- [Pricing](https://breaknorm.co/pricing): plans, allowances and limits

## Plays

Step-by-step outbound playbooks, each with the signal, whom to write to, what to say and how to measure it.

- [Team build-out](https://breaknorm.co/plays/team-build-out): How do you find companies where a new sales leader is building a team?
- [Lookalikes](https://breaknorm.co/plays/lookalikes): How do you find more companies like your best customers?
- [Tech switch](https://breaknorm.co/plays/tech-switch): How do you find companies that just switched to a new CRM or platform?
- [Champion moved](https://breaknorm.co/plays/champion-moved): How do you know when a former customer champion changes jobs?
- [Market map](https://breaknorm.co/plays/market-map): How do you size a B2B market before building a lead list?
- [Hiring surge](https://breaknorm.co/plays/hiring-surge): How do you find companies that are hiring fast in one team?
- [Post engagers](https://breaknorm.co/plays/post-engagers): How do you turn people who engage with LinkedIn posts into leads?
- [New market entry](https://breaknorm.co/plays/expansion): How do you find companies that are expanding into a new country?
- [Local market](https://breaknorm.co/plays/local-market): How do you find every local business in a city with the owner's email?

## Data

- [Hiring data](https://breaknorm.co/data/hiring): We read open roles straight from the applicant tracking systems behind company career sites, every hour. Each posting is normalized and joined to the company, so you can filter on who is hiring what, where.
- [Job changes](https://breaknorm.co/data/job-changes): Sales, marketing, revenue and executive leaders who just started a new role, by country, function and level. A new leader reviews tools and vendors in the first quarter, so this is when to write.
- [Email verification](https://breaknorm.co/data/email-verification): We find work emails and check each one at the recipient's mail server before returning it. A valid result means the server accepted the address, so you write to people, not to bounces.
- [How we collect](https://breaknorm.co/data/methodology): We do not resell another vendor's database. We crawl company websites and career systems ourselves, read public profiles, and check emails at the mail server. Every value carries the page it came from and when we saw it.
- [Coverage by country](https://breaknorm.co/data/coverage)
- [How we compare](https://breaknorm.co/compare)

## Companies by tool, hiring and company profiles

Programmatic pages: one per tool, tool and country, category, stack, tool pair, hiring function and country, and company. Each opens with one dated sentence that can be quoted, shows the website-and-DNS footprint and the job-posting layer separately, and has a JSON view at /api/pseo/<family>/<slug>.

- [Companies by tool](https://breaknorm.co/tools): hub, categories ranked by real usage, stacks
- [About the data](https://breaknorm.co/about-the-data): sources, refresh, what the numbers mean
- https://breaknorm.co/company/index/a/2
- https://breaknorm.co/company/index/a/3
- https://breaknorm.co/company/index/a/4
- https://breaknorm.co/company/index/a/5
- https://breaknorm.co/company/index/a/6
- https://breaknorm.co/company/index/a/7
- https://breaknorm.co/company/index/a/8
- https://breaknorm.co/company/index/a/9
- https://breaknorm.co/company/index/a/10
- https://breaknorm.co/company/index/a/11
- https://breaknorm.co/company/index/a/12
- https://breaknorm.co/company/index/a/13
- https://breaknorm.co/company/index/b/2
- https://breaknorm.co/company/index/b/3
- https://breaknorm.co/company/index/b/4
- https://breaknorm.co/company/index/b/5
- https://breaknorm.co/company/index/b/6
- https://breaknorm.co/company/index/b/7
- https://breaknorm.co/company/index/b/8
- https://breaknorm.co/company/index/b/9
- https://breaknorm.co/company/index/c/2
- https://breaknorm.co/company/index/c/3
- https://breaknorm.co/company/index/c/4
- https://breaknorm.co/company/index/c/5
- https://breaknorm.co/company/index/c/6
- https://breaknorm.co/company/index/c/7
- https://breaknorm.co/company/index/c/8
- https://breaknorm.co/company/index/c/9
- https://breaknorm.co/company/index/c/10
- https://breaknorm.co/company/index/c/11
- https://breaknorm.co/company/index/c/12
- https://breaknorm.co/company/index/d/2
- https://breaknorm.co/company/index/d/3
- https://breaknorm.co/company/index/d/4
- https://breaknorm.co/company/index/d/5
- https://breaknorm.co/company/index/d/6
- https://breaknorm.co/company/index/e/2
- https://breaknorm.co/company/index/e/3
- https://breaknorm.co/company/index/e/4
- https://breaknorm.co/company/index/e/5
- https://breaknorm.co/company/index/e/6
- https://breaknorm.co/company/index/f/2
- https://breaknorm.co/company/index/f/3
- https://breaknorm.co/company/index/f/4
- https://breaknorm.co/company/index/f/5
- https://breaknorm.co/company/index/f/6
- https://breaknorm.co/company/index/g/2
- https://breaknorm.co/company/index/g/3
- https://breaknorm.co/company/index/g/4
- https://breaknorm.co/company/index/g/5
- https://breaknorm.co/company/index/g/6
- https://breaknorm.co/company/index/g/7
- https://breaknorm.co/company/index/h/2
- https://breaknorm.co/company/index/h/3
- https://breaknorm.co/company/index/h/4
- https://breaknorm.co/company/index/h/5
- https://breaknorm.co/company/index/h/6
- https://breaknorm.co/company/index/i/2
- https://breaknorm.co/company/index/i/3
- https://breaknorm.co/company/index/i/4
- https://breaknorm.co/company/index/i/5
- https://breaknorm.co/company/index/j/2
- https://breaknorm.co/company/index/k/2
- https://breaknorm.co/company/index/k/3
- https://breaknorm.co/company/index/k/4
- https://breaknorm.co/company/index/l/2
- https://breaknorm.co/company/index/l/3
- https://breaknorm.co/company/index/l/4
- https://breaknorm.co/company/index/l/5
- https://breaknorm.co/company/index/l/6
- https://breaknorm.co/company/index/m/2
- https://breaknorm.co/company/index/m/3
- https://breaknorm.co/company/index/m/4
- https://breaknorm.co/company/index/m/5
- https://breaknorm.co/company/index/m/6
- https://breaknorm.co/company/index/m/7
- https://breaknorm.co/company/index/m/8
- https://breaknorm.co/company/index/m/9
- https://breaknorm.co/company/index/n/2
- https://breaknorm.co/company/index/n/3
- https://breaknorm.co/company/index/n/4
- https://breaknorm.co/company/index/n/5
- https://breaknorm.co/company/index/o/2
- https://breaknorm.co/company/index/o/3
- https://breaknorm.co/company/index/o/4
- https://breaknorm.co/company/index/p/2
- https://breaknorm.co/company/index/p/3
- https://breaknorm.co/company/index/p/4
- https://breaknorm.co/company/index/p/5
- https://breaknorm.co/company/index/p/6
- https://breaknorm.co/company/index/p/7
- https://breaknorm.co/company/index/p/8
- https://breaknorm.co/company/index/r/2
- https://breaknorm.co/company/index/r/3
- https://breaknorm.co/company/index/r/4
- https://breaknorm.co/company/index/r/5
- https://breaknorm.co/company/index/r/6
- https://breaknorm.co/company/index/s/2
- https://breaknorm.co/company/index/s/3
- https://breaknorm.co/company/index/s/4
- https://breaknorm.co/company/index/s/5
- https://breaknorm.co/company/index/s/6
- https://breaknorm.co/company/index/s/7
- https://breaknorm.co/company/index/s/8
- https://breaknorm.co/company/index/s/9
- https://breaknorm.co/company/index/s/10
- https://breaknorm.co/company/index/s/11
- https://breaknorm.co/company/index/s/12
- https://breaknorm.co/company/index/s/13
- https://breaknorm.co/company/index/s/14
- https://breaknorm.co/company/index/t/2
- https://breaknorm.co/company/index/t/3
- https://breaknorm.co/company/index/t/4
- https://breaknorm.co/company/index/t/5
- https://breaknorm.co/company/index/t/6
- https://breaknorm.co/company/index/t/7
- https://breaknorm.co/company/index/t/8
- https://breaknorm.co/company/index/u/2
- https://breaknorm.co/company/index/u/3
- https://breaknorm.co/company/index/v/2
- https://breaknorm.co/company/index/v/3
- https://breaknorm.co/company/index/v/4
- https://breaknorm.co/company/index/w/2
- https://breaknorm.co/company/index/w/3
- https://breaknorm.co/company/index/w/4
- https://breaknorm.co/company/index/w/5
- https://breaknorm.co/company/index/z/2
- https://breaknorm.co/tools/all/0-9
- https://breaknorm.co/tools/all/i
- https://breaknorm.co/tools/all/a
- https://breaknorm.co/tools/all/m
- https://breaknorm.co/tools/all/f
- https://breaknorm.co/tools/all/s
- https://breaknorm.co/tools/all/e
- https://breaknorm.co/tools/all/r
- https://breaknorm.co/tools/all/c
- https://breaknorm.co/tools/all/v
- https://breaknorm.co/tools/all/b
- https://breaknorm.co/tools/all/d
- https://breaknorm.co/tools/all/u
- https://breaknorm.co/tools/all/g
- https://breaknorm.co/tools/all/h
- https://breaknorm.co/tools/all/j
- https://breaknorm.co/tools/all/k
- https://breaknorm.co/tools/all/l
- https://breaknorm.co/tools/all/p
- https://breaknorm.co/tools/all/n
- https://breaknorm.co/tools/all/o
- https://breaknorm.co/tools/all/w
- https://breaknorm.co/tools/all/q
- https://breaknorm.co/tools/all/t
- https://breaknorm.co/tools/all/x
- https://breaknorm.co/tools/all/y
- https://breaknorm.co/tools/all/z
- https://breaknorm.co/tools/1-2-1-marketing
- https://breaknorm.co/tools/101domain
- https://breaknorm.co/tools/123formbuilder
- https://breaknorm.co/tools/123hotel
- https://breaknorm.co/tools/12d-model
- https://breaknorm.co/tools/168smtp
- https://breaknorm.co/tools/1984-hosting
- https://breaknorm.co/tools/1c-enterprise
- https://breaknorm.co/tools/1password
- https://breaknorm.co/tools/1st-domains
- https://breaknorm.co/tools/20i
- https://breaknorm.co/tools/21cn-mail
- https://breaknorm.co/tools/24nettbutikk
- https://breaknorm.co/tools/263-enterprise-mail
- https://breaknorm.co/tools/2checkout
- https://breaknorm.co/tools/3cx
- https://breaknorm.co/tools/3dexperience
- https://breaknorm.co/tools/3ds-max
- https://breaknorm.co/tools/3essentials
- https://breaknorm.co/tools/3shape
- https://breaknorm.co/tools/4dem
- https://breaknorm.co/tools/4me
- https://breaknorm.co/tools/5g-nr
- https://breaknorm.co/tools/5g
- https://breaknorm.co/tools/6sense
- https://breaknorm.co/tools/802-1x
- https://breaknorm.co/tools/8x8
- https://breaknorm.co/tools/a1-telekom
- https://breaknorm.co/tools/a10-networks
- https://breaknorm.co/tools/a2-hosting
- https://breaknorm.co/tools/a2a-protocol
- https://breaknorm.co/tools/a2z
- https://breaknorm.co/tools/aareon
- https://breaknorm.co/tools/aashtoware
- https://breaknorm.co/tools/ab-initio
- https://breaknorm.co/tools/ab-tasty
- https://breaknorm.co/tools/abacus
- https://breaknorm.co/tools/abap-cloud
- https://breaknorm.co/tools/abap
- https://breaknorm.co/tools/abaqus
- https://breaknorm.co/tools/abas-erp
- https://breaknorm.co/tools/abb-800xa
- https://breaknorm.co/tools/abicart
- https://breaknorm.co/tools/ableton-live
- https://breaknorm.co/tools/absorb-lms
- https://breaknorm.co/tools/abuseipdb

## Datasets

- [Jobs dataset](https://breaknorm.co/datasets/jobs): Job postings read straight from the applicant tracking systems behind company career sites, with job portals filling the gaps. Normalized by function, level and location, joined to the company record, and delivered as files on your schedule.
- [Signals dataset](https://breaknorm.co/datasets/signals): New leaders, hiring surges, tech switches and companies opening new countries, each one an event with a date, the company and the people involved. Built for scoring models, triggers and research.
- [Company and People dataset](https://breaknorm.co/datasets/companies-people): Every company record built from the company's own website: what they sell, who they sell to, size and tech. Decision makers joined on, normalized by function and level, with verified emails as an option.

## FAQ

- [What is Breaknorm?](https://breaknorm.co/faq#what-is-breaknorm)
- [Who is Breaknorm for?](https://breaknorm.co/faq#who-is-it-for)
- [How is Breaknorm different from Apollo, ZoomInfo or Clay?](https://breaknorm.co/faq#different)
- [What does "built for AI agents" mean?](https://breaknorm.co/faq#built-for-agents)
- [Do I need a developer to use it?](https://breaknorm.co/faq#need-developer)
- [Should I use the MCP server or the API?](https://breaknorm.co/faq#mcp-or-api)
- [Where does the data come from?](https://breaknorm.co/faq#sources)
- [How many companies do you have, and in which countries?](https://breaknorm.co/faq#coverage)
- [How fresh is the data?](https://breaknorm.co/faq#freshness)
- [Do you have local businesses?](https://breaknorm.co/faq#local)
- [How accurate are company size and revenue?](https://breaknorm.co/faq#size-accuracy)
- [What is not in Breaknorm?](https://breaknorm.co/faq#not-included)
- [Can I see how many results a search will return before I spend anything?](https://breaknorm.co/faq#count-first)
- [A company is wrong or missing. What can I do?](https://breaknorm.co/faq#wrong-or-missing)
- [Can I search for people?](https://breaknorm.co/faq#people-search)
- [How do you find and verify emails?](https://breaknorm.co/faq#how-verified)
- [What do the email statuses mean, and which should I send to?](https://breaknorm.co/faq#statuses)
- [How are email lookups charged?](https://breaknorm.co/faq#email-cost)
- [Can I verify or enrich a whole list at once?](https://breaknorm.co/faq#bulk-email)
- [Do you have phone numbers?](https://breaknorm.co/faq#phones)
- [How does pricing work?](https://breaknorm.co/faq#how-pricing-works)
- [What are the 5-hour and 7-day windows?](https://breaknorm.co/faq#windows)
- [What happens when I hit a limit?](https://breaknorm.co/faq#at-limit)
- [Do failed calls cost anything?](https://breaknorm.co/faq#failed-calls)
- [How do I check my usage?](https://breaknorm.co/faq#usage)
- [Can I try it before I pay?](https://breaknorm.co/faq#trial)
- [How do I pay, and can I get invoices with my VAT number?](https://breaknorm.co/faq#payment)
- [How do I cancel?](https://breaknorm.co/faq#cancel)
- [Do you offer refunds?](https://breaknorm.co/faq#refunds)
- [We need more, or Breaknorm inside our own product. What then?](https://breaknorm.co/faq#bigger)
- [How do I connect Breaknorm to Claude or ChatGPT?](https://breaknorm.co/faq#connect-claude)
- [Which agents and tools work with Breaknorm?](https://breaknorm.co/faq#clients)
- [How do I get an API key?](https://breaknorm.co/faq#api-key)
- [Can my agent check its own plan and usage?](https://breaknorm.co/faq#agent-usage)
- [How do I keep my existing customers out of every result?](https://breaknorm.co/faq#exclusions)
- [How do you handle privacy?](https://breaknorm.co/faq#privacy-approach)
- [My company is in Breaknorm. Can I see, correct or remove it?](https://breaknorm.co/faq#opt-out)
- [What do you store about my account and my searches?](https://breaknorm.co/faq#your-data)
- [Where does Breaknorm run, and who are your sub-processors?](https://breaknorm.co/faq#subprocessors)
- [Do you sign a data processing agreement?](https://breaknorm.co/faq#dpa)
- [How do I delete my account and data?](https://breaknorm.co/faq#delete-account)

## Optional

- [Documentation](https://docs.breaknorm.co)
- Contact: support@breaknorm.co · privacy@breaknorm.co