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MCP Server

Xither — AI vendor record

com.xither/record
Legal & Compliance Public & reachable MCP 2025-11-25

What this MCP does

Provides read-only records of AI vendors' sub-processors, DPA notice windows, document changes, and upcoming model retirements.

Capabilities

Tools

4 tools
lookup_vendor
Look up one vendor's record
The Xither record for one vendor: where it publishes its sub-processor list and data processing agreement and when Xither last read each page (or why a page cannot be read), the notice window its agreement states for new sub-processors (quoted, with source URL and read date), its public changes to either document with permalinks, and model retirement dates it publishes for the next 365 days. One vendor per call; accepts a name, slug or domain. Changes appear 30 days after Xither records them; subscribers get them the same morning at www.xither.com/pricing.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['vendor'], 'properties': {'vendor': {'type': 'string', 'maxLength': 200, 'minLength': 1, 'description': 'A vendor name, slug or domain, for example "HubSpot", "hubspot" or "hubspot.com".'}}, 'additionalProperties': False}
notice_windows
Sub-processor notice windows
Every sub-processor notice window Xither can quote: the number of days (business days where the clause says so) each vendor's own terms give customers to object to a new sub-processor, with the verbatim clause, its source URL and the date Xither read it. The same table as www.xither.com/notice-windows. A vendor not listed has no window Xither could quote.
Read only Idempotent
Input schema 
{'type': 'object', 'properties': {}, 'additionalProperties': False}
search_vendors
Find vendors by name
Find vendors in the Xither record by name, slug or domain. Returns up to 10 matches, each with its name, slug and record URL, and no record data. Pass a slug to lookup_vendor for the record.
Read only Idempotent
Input schema 
{'type': 'object', 'required': ['query'], 'properties': {'query': {'type': 'string', 'maxLength': 100, 'minLength': 2, 'description': 'Part of a vendor name, a slug or a domain.'}}, 'additionalProperties': False}
upcoming_model_retirements
Upcoming model retirements
Model and API retirement dates from the retirement tables vendors publish, as Xither last read them, soonest first: model, date, the replacement the vendor names, the verbatim table row, source URL and read date. Optional vendor filter; within_days defaults to 90, maximum 365; at most 50 rows. Covers only vendors whose retirement tables Xither reads.
Read only Idempotent
Input schema 
{'type': 'object', 'properties': {'vendor': {'type': 'string', 'maxLength': 200, 'minLength': 1, 'description': 'Optional vendor name, slug or domain.'}, 'within_days': {'type': 'integer', 'default': 90, 'maximum': 365, 'minimum': 1, 'description': 'How many days ahead to look, from today.'}}, 'additionalProperties': False}
History

Recent tool changes

Added
upcoming_model_retirements
Oct. 1, 2026, 2:40 a.m.
Added
notice_windows
Oct. 1, 2026, 2:40 a.m.
Added
search_vendors
Oct. 1, 2026, 2:40 a.m.
Added
lookup_vendor
Oct. 1, 2026, 2:40 a.m.
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