Atlas entry

`api.companyverify.uk`

21 capabilities over MCP. First atlas observation.

Observed 7 Nov 2026, 05:04 UTC · passive: no tools called, no credentials sent · sha256:0423f2…bc59

21 tools. 4 only read. 1 changes records. 16 have no reading.

AI reading, beta. side-effects v1 on claude-haiku-5.5, calibrated on MCP (golden-3). Only readings above a measured precision count. Counts are tools, not calls: no tool was called.

AI readings summary · beta

The service lists 21 tools, and 5 have AI readings.

request_data is read as creating records.

4 tools are read as read-only, including uk_company_search, find_capability and uk_company_profile.

Written by code from the AI readings on this page: it groups them and says nothing they do not.

What an agent can do here

AI readings, beta · Readings on 5 of 21 MCP tools.

Moves money
0
No tool read this way.
Deletes or cancels records
0
No tool read this way.
Sends messages to people
0
No tool read this way.
Changes permissions
0
No tool read this way.
Runs code
0
No tool read this way.
Should ask a person first
0
No tool read this way.

No counted reading 16 tools No reading was counted, so any effect above is possible for them: adverse_media, charge_register, counterparty_evidence, cross_registry_resolve, entity_match, eu_vat_check, fca_register_check, kyb_verdict, pep_screen, registry_doc_fetch and 6 more.

What changed

First atlas observation. Atlas history

Look first

AI reading, beta: AI adds items here; it never removes one.

No tool is read as one of the six effects. A zero is a count, not a clearance.

Surfaces

5 protocols checked

ARD	Not found	No document retrieved
A2A	Not found	0 skills
MCP	Valid	2025-11-25 · 21 tools · resources not advertised · prompts not advertised
OpenAPI	Not detected	0 operations
WebMCP	Not detected	0 declarative form tools · experimental

Exact states and meaning

ARD
absent
Exact state: not found · No document retrieved
The supported discovery location returned no matching document.
Not found does not prove the service exposes no such interface elsewhere.
Not observed / not fetched
A2A
absent
Exact state: not found · 0 skills
The supported discovery location returned no matching document.
Not found does not prove the service exposes no such interface elsewhere.
Not observed / not fetched
MCP
observed
Exact state: valid · Revision 2025-11-25 · 21 tools · resources not advertised · prompts not advertised
A usable protocol document was retrieved and validated.
Directly observed
OpenAPI
absent
Exact state: not detected · 0 operations
No endpoint was established from the evidence and scope that InterfaceDelta inspected.
Not detected does not prove that no endpoint exists.
Not observed / not fetched
WebMCP
absent
Exact state: not detected · 0 declarative form tools · experimental
No named declarative WebMCP form tools were observed in the origin root HTML.
Script-registered tools and other pages are not observed, so this does not mean the site has no WebMCP tools.
Not observed / not fetched

21 · inventory complete

Showing 21 of 21.

Tool and inputs							◇ AI reading, beta · confidence
Read as none of the six 5 Not a clearance.
query							Reads only0.80
`find_capability` inputs `query` AI Reads only 0.80
identifier_type, identifier_value							Reads only0.88
`lei_lookup` inputs `identifier_type` (required), `identifier_value` (required) AI Reads only 0.88
contact, description*, max_price_usd, use_case and 1 more							Creates records0.80
`request_data` inputs `contact`, `description` (required), `max_price_usd`, `use_case` and 1 more AI Creates records 0.80
company_number*							Reads only0.90
`uk_company_profile` inputs `company_number` (required) AI Reads only 0.90
limit, q*							Reads only0.90
`uk_company_search` inputs `limit`, `q` (required) AI Reads only 0.90
No counted reading 16 No reading was counted, so any effect is possible.
name*	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`adverse_media` inputs `name` (required)
company_number*	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`charge_register` inputs `company_number` (required)
company_name, company_number, include_lei, include_sanctions and 1 more	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`counterparty_evidence` inputs `company_name`, `company_number`, `include_lei`, `include_sanctions` and 1 more
identifiers, jurisdiction, name*	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`cross_registry_resolve` inputs `identifiers`, `jurisdiction`, `name` (required)
a, b	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`entity_match` inputs `a` (required), `b` (required)
vat*	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`eu_vat_check` inputs `vat` (required)
identifier_type, identifier_value	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`fca_register_check` inputs `identifier_type` (required), `identifier_value` (required)
identifier_type, identifier_value, jurisdiction	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`kyb_verdict` inputs `identifier_type` (required), `identifier_value` (required), `jurisdiction`
country, name*	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`pep_screen` inputs `country`, `name` (required)
company_number*, filing_type	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`registry_doc_fetch` inputs `company_number` (required), `filing_type`
name*, threshold	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`sanctions_screen` inputs `name` (required), `threshold`
company_number*	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`uk_director_changes` inputs `company_number` (required)
identifier_type, identifier_value	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`uk_insolvency_notices` inputs `identifier_type` (required), `identifier_value` (required)
supplier*	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`uk_procurement_awards` inputs `supplier` (required)
company_number*	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`uk_psc_ubo` inputs `company_number` (required)
identifier_type, identifier_value	unknown	unknown	unknown	unknown	unknown	unknown	No reading
`vessel_sanctions` inputs `identifier_type` (required), `identifier_value` (required)

Read as this effect No reading: unknown Not read as this effect◇ AI readings, beta. A zero is a count, not a clearance.

Not observed in this Passport: A2A skills, MCP resources, MCP prompts, OpenAPI operations.

The atlas shows each capability by its plain identifier, inputs and declared sign-in. Publisher descriptions, paths, links and source evidence are not published here.

The comparison with the previous observation is shown only to the account that recorded it.

Atlas history

1 observation

7 Nov 2026, 05:04 UTC21 capabilities · MCP 2025-11-25 · MCP endpoint validFirst observation
Fingerprint and versions
Fingerprint
0423f2bfedc3b2a2745595729c68e7129af02dc39a09b3d37566bafa585fbc59
Passport schema
0.5.0, passport-semantic-v4
Consistency
MCP_PROMPTS_ADVERTISEMENT_LIST: not applicable · MCP_RESOURCES_ADVERTISEMENT_LIST: not applicable · MCP_TOOLS_ADVERTISEMENT_LIST: match · OPENAPI_MCP_EXPLICIT_MAPPING: not applicable

Each class compares an observation with the previous atlas observation. Runs of unchanged observations are grouped. Struck values are what the previous observation recorded; inserted values are what this one recorded.

Declared and observed

No tools declare hints.

A disagreement is not a finding about the service: either side can be wrong. How we compare declarations and readings.

About this entry

io.github.greg-wilko/companyverify
Listed
Official MCP Registry · first listed 7 Nov 2026 · last listed 7 Nov 2026

Passive observations of a public interface listed in the Official MCP Registry. An observation does not verify security, ownership or compliance, and InterfaceDelta assigns no scores or rankings. Methodology · Report an inaccuracy · Ask for removal

Identity and snapshot

Target key: sha256:483a1d550e2f78b4038bea17c5076d2b924c91d8bd33e745c2a6019938d75357
Locator SHA-256: 52204b1d9f999cca6308b93e71a35f29cdcc6072e02491905e8b2ee9ec43b89a
Snapshot generated: 11 Nov 2026, 22:36 UTC

The entry is one exact observed target, not a real-world service identity, and implies no ownership. Endpoint paths are not published; the locator hash lets an operator confirm their own URL.

Capability facts

As observed from outside, at the time below

Observed: 7 Nov 2026, 05:04 UTC
Signed: 7 Nov 2026, 12:03 UTC

Protocols: MCP
Tools: 21
Declared sign-in: None declared

Effects counted AI readings, beta

Moves money: 0
Deletes or cancels records: 0
Sends messages to people: 0
Changes permissions: 0
Runs code: 0
Asks a person: 0

21 tools examined; 5 counted above a measured threshold.

Declared vs read disagreements

Declared read-only, read as writing: 0
Declared destructive, read as not writing: 0
Declared non-destructive, read as deleting: 0
Declared closed-world, read as reaching out: 0

Change since previous: First observation
Label status: Current