Atlas entry

`huggingface.co`

162 capabilities over MCP. The inventory is incomplete. First atlas observation.

Observed 14 Nov 2026, 08:01 UTC · passive: no tools called, no credentials sent · sha256:904b6c…f341

162 capabilities, 4 of them tools. 4 only read.

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 4 tools, and 4 have AI readings.

4 tools are read as read-only, including hub_repo_search, hf_whoami and hub_repo_details.

hf_whoami: Reports the signed-in Hugging Face account, its visible organizations, and credential access details, without exposing secret values.

hub_repo_details: Fetches details for up to ten Hugging Face models, datasets, or Spaces, including metadata, files, and dataset schema or preview rows.

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 4 of 4 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.

A zero is a count, not a clearance.

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	unreachable	No document retrieved
A2A	unreachable	0 skills
MCP	Valid	2026-07-28 · 4 tools · 158 resources · prompts not advertised
OpenAPI	Not detected	0 operations
WebMCP	Not detected	0 declarative form tools · experimental

Exact states and meaning

ARD
failed
Exact state: unreachable · No document retrieved
The supported discovery location did not provide a usable response within the observation boundary.
An unreachable result does not prove the service is unavailable to every client or that it advertises no capabilities.
Not observed / not fetched
A2A
failed
Exact state: unreachable · 0 skills
The supported discovery location did not provide a usable response within the observation boundary.
An unreachable result does not prove the service is unavailable to every client or that it advertises no capabilities.
Not observed / not fetched
MCP
observed
Exact state: valid · Revision 2026-07-28 · 4 tools · 158 resources · 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

162 · inventory incomplete

Showing 162 of 162.

Tool and inputs							◇ AI reading, beta · confidence
Read as none of the six 4 Not a clearance.
◇ AI Fetches listings, file contents, metadata and model or dataset cards from the Hugging Face Hub, including trending models and papers.operations*							Reads only0.90
`hf_fs` inputs `operations` (required) AI Reads only 0.90
◇ AI Reports the signed-in Hugging Face account, its visible organizations, and credential access details, without exposing secret values.no inputs							Reads only0.90
`hf_whoami` AI Reads only 0.90
◇ AI Fetches details for up to ten Hugging Face models, datasets, or Spaces, including metadata, files, and dataset schema or preview rows.config, limit, offset, operations and 3 more							Reads only0.88
`hub_repo_details` inputs `config`, `limit`, `offset`, `operations` and 3 more AI Reads only 0.88
author, filters, limit, query and 2 more							Reads only0.90
`hub_repo_search` inputs `author`, `filters`, `limit`, `query` and 2 more AI Reads only 0.90
MCP resources 158 Not read by AI.
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Read as this effect No reading: unknown Not read as this effect◇ AI readings, beta. A zero is a count, not a clearance.

A2A skills 0+ observed

Inventory incomplete. The displayed count is a lower bound; missing items do not prove removal.

None recorded in this Passport.

MCP prompts 0+ observed

Inventory incomplete. MCP prompts could not be fully inventoried: ARD discovery did not resolve, so declarations made there were not read.

None recorded in this Passport.

OpenAPI operations 0+ observed

Inventory incomplete. OpenAPI operations could not be fully inventoried: ARD discovery did not resolve, so declarations made there were not read.

None recorded in this Passport.

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

14 Nov 2026, 08:01 UTC162 capabilities · MCP 2026-07-28 · MCP endpoint validFirst observation
Fingerprint and versions
Fingerprint
904b6c68ebb3f5f12ba82f5b0a7d9515ee0ed225e2625dd8cd36aad13ebef341
Passport schema
0.5.0, passport-semantic-v4
Consistency
MCP_PROMPTS_ADVERTISEMENT_LIST: not applicable · MCP_RESOURCES_ADVERTISEMENT_LIST: match · 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

4 tools declare hints; the AI readings agree with all 4 that have a reading.

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

About this entry

co.huggingface/hf-mcp-server
Listed
Official MCP Registry · first listed 16 Sep 2026 · last listed 31 Oct 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:d27b27e2ccefba6b15a27402636bc996ee749debe03cd7b6e684c4657fae6b6b
Locator SHA-256: eb83cb858c6b1ba609cadc6d176450af6fea4a1e7d81df14607438da54cdd4a2
Snapshot generated: 14 Nov 2026, 08:50 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: 14 Nov 2026, 08:01 UTC
Signed: 14 Nov 2026, 08:50 UTC

Protocols: MCP
Tools: 4
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

4 tools examined; 4 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: Baseline for labelled observation
Label status: Current

What an agent can do here

What changed

Look first

Surfaces

Capabilities

A2A skills 0+ observed

MCP prompts 0+ observed

OpenAPI operations 0+ observed

Atlas history

Declared and observed

About this entry