Atlas entry

`chainchoice.io`

7 capabilities over MCP. First atlas observation.

Observed 4 Nov 2026, 00:02 UTC · passive: no tools called, no credentials sent · sha256:419961…1a7a

Capability facts

As observed from outside, at the time below

Observed: 4 Nov 2026, 00:02 UTC
Signed: 4 Nov 2026, 00:26 UTC

Protocols: MCP
Tools: 7
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

7 tools examined; 0 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

Surfaces

5 protocols checked

ARD	Not found	No document retrieved
A2A	Not found	0 skills
MCP	Valid	2025-06-18 · 7 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 2025-06-18 · 7 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

Capabilities

7 · inventory complete

Summary of the AI readings · beta

The service lists 7 capabilities, and 5 have AI readings.

5 capabilities are read as read-only, including search, list_categories and get_evidence.

Rows named: search · list_categories · get_evidence

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

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.

MCP tools 7

get_evidence
inputs category (required), product
AI Reads only 0.92
get_ranking
inputs category (required), limit
AI Reads only 0.85
get_ranking_for_country
inputs category (required), country (required), limit
AI Reads only 0.85
hand_off
inputs category (required), consent (required), country, product (required) and 2 more
list_categories
AI Reads only 0.91
search
inputs country, query (required)
AI Reads only 0.86
verify_receipt
inputs receipt (required)

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

Declared and observed

7 tools declare hints; the AI readings agree with all 5 that have a reading.

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

Atlas history

1 observation

4 Nov 2026, 00:02 UTC7 capabilities · MCP 2025-06-18 · MCP endpoint validFirst observation
Fingerprint and versions
Fingerprint
4199619b58b2f31512d79d1c0399f93b52c483fb8441ac7fc63ec29146c61a7a
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.

About this entry

io.chainchoice/rankings
Listed
Official MCP Registry · first listed 4 Nov 2026 · last listed 4 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: sha256:15336bec564b492b2f1d31512942e7097fb5e7bf22a24c0595ccccccb642582d
Locator SHA-256: 15e8c8240a126a79b78e7c5c622728202a1b585e8fa5a8a3ffda120bd83eb422
Snapshot generated: 4 Nov 2026, 00:59 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.