RB2B

The vendor ships and maintains the server itself. A wrapper built by Zapier, Composio or a similar third party does not count as official. The status was established by hand on 2026-08-24. On 2026-09-04 the recorded URL was a reachable repository or package: a server you install and run on your own machine over stdio. Callable after an install, not a remote endpoint.

mcp_status, verbatim from the file:

official

mcp_url, verbatim from the file:

https://registry.npmjs.org/@rb2b/rb2b-apis-mcp (re-verified 200 on 2026-08-28, latest 1.1.7 published 2026-04-13. The only live first-party receipt; corrected that day off a dead receipt, see notes.)

• https://registry.npmjs.org/@rb2b/rb2b-apis-mcp

A tool below is one the server NAMES. Nobody has called it. That is the same two tier honesty rule the rest of the directory runs on: a named tool is research, and BENCH-TESTED stays the only claim that anybody ran anything.

• check_credits
  Check remaining API credits for the account
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• email_to_best_linkedin
  Get the highest-confidence LinkedIn profile URL for an email
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• email_to_business_profile
  Get business/employer profile (title, company, industry) for an email
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• email_to_linkedin_slug
  Get the LinkedIn slug for a plain-text email
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• email_to_maid
  Get Mobile Advertising IDs linked to an email
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• help
  List all available tools with descriptions and costs
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• hem_to_best_linkedin
  Get the highest-confidence LinkedIn profile URL for a hashed email
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• hem_to_business_profile
  Get business/employer profile for a hashed email
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• hem_to_linkedin_slug
  Get the LinkedIn slug for a hashed email
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• hem_to_maid
  Get Mobile Advertising IDs linked to a hashed email
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• ip_to_company
  Identify the company associated with an IP address
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• ip_to_hem
  Get hashed emails (MD5 + SHA256) linked to an IP address
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• ip_to_maid
  Get Mobile Advertising IDs (MAIDs) linked to an IP address
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• linkedin_to_best_personal_email
  Get the highest-confidence personal email for a profile
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• linkedin_to_business_profile
  Get business/employer profile (title, company, industry) for a profile
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• linkedin_to_hashed_emails
  Get all hashed emails (personal + business, MD5 + SHA256) for a profile
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• linkedin_to_mobile_phone
  Get the mobile phone number for a profile
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• linkedin_to_personal_email
  Get all personal email candidates for a profile
  evidence: in the vendor docs · calling it reads · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server
• set_api_key
  Update the stored API key (validates before saving)
  evidence: in the vendor docs · calling it writes · read off npmjs, an aggregator wrapping the vendor's API rather than the vendor's own server

141 of the 741 entries that record an official or community MCP server carry a harvested tool list. The other 600 are unmeasured, which is not the same as empty. Harvest last run 2026-09-27. Every name across every server is on the tools index.

No CLI found by the 2026-09-27 harvest across vendor docs, npm, PyPI, Homebrew and GitHub. That is a probe result, not proof of absence.

api_gate, verbatim from the file:

paid

No documentation URL recorded.

727 of 1252 entries are in the same position. Blank is legal and it is published as blank.

Not measured. github_url, github_stars, github_last_commit and github_archived are null on every entry in this build.

The refresh rail specced in SPEC section 7.2 has not been run. An unstamped star count is a lie, so nothing is shown rather than something stale.

The entry carried no github.com URL and the organisation search returned nothing on 2026-09-08. That is a statement about the instrument on that date, not proof the vendor has no GitHub.

• Find a work email address
• Identify an anonymous website visitor

A job tag means the vendor says the tool does this. It is not a test result, not proof the capability is reachable through the tool's MCP server, and not proof it is available on the gate this entry records.

Tagged by machine-pass on 2026-08-25 against the closed 56 job vocabulary. 271 of 1,252 entries carry at least one tag; 849 tags are assigned in total.

• https://www.rb2b.com/
• https://www.rb2b.com/power-your-product
• https://www.warmly.ai/p/blog/rb2b-pricing
• https://salestools.club/apis/rb2b
• https://registry.npmjs.org/@rb2b/rb2b-apis-mcp

5 source URLs. Raw sources field, verbatim:

https://www.rb2b.com/, https://www.rb2b.com/power-your-product, https://www.warmly.ai/p/blog/rb2b-pricing, https://salestools.club/apis/rb2b, https://registry.npmjs.org/@rb2b/rb2b-apis-mcp

Every field above is rendered from directory.json exactly as the build produced it. Nothing is summarised and nothing is dropped. The one change made at render time is typographic and it is disclosed on the methodology page.