datasets
Training and evaluation data, with the modality, task and licence stated up front. Listed live from the Hugging Face Hub.
adult-census-income
Adult Census Income Dataset
The following was retrieved from UCI machine learning repository.
This data was extracted from the 1994 Census bureau database by Ronny Kohavi and Barry Becker (Data Mining and Visualization, Silicon Graphics). A set of reasonably clean records was extracted using the following conditions: ((AAGE>16) && (AGI>100) && (AFNLWGT>1) && (HRSWK>0)). The prediction task is to determine whether a person makes over $50K a year.
Description of fnlwgt (final weight)… See the full description on the dataset page: https://huggingface.co/datasets/scikit-learn/adult-census-income.constellation-census
Constellation Census
Credit: NASA
Part of a dataset collection on Hugging Face.
Dataset description
Daily census of active satellite constellations with orbital shell classification. Tracks satellites from CelesTrak GP data across LEO mega-constellations (Starlink, OneWeb, Kuiper, Qianfan, Hulianwang), navigation systems (GPS, Galileo, BeiDou, GLONASS), communications fleets (Iridium, Globalstar, ORBCOMM, SES, Intelsat, Eutelsat, Telesat), and Earth… See the full description on the dataset page: https://huggingface.co/datasets/juliensimon/constellation-census.gspc-hf-model-census
GSPC — Hugging Face model census
20,000 models on the Hub, and this file measures none of them. That is the point of it: it
is the denominator, not the score. Every row reads status: UNMEASURED, measured_axes: 0,
unmeasured_axes: 22.
What changed in 0.2, and why it mattered
The 0.1 census carried 15,557 rows, each asserting unmeasured_axes: 14. Fourteen was the
superseded 13-of-14 canon. The board has been ruled at 22 axes and has read
22 slots · 22 measured · 0… See the full description on the dataset page: https://huggingface.co/datasets/csoai/gspc-hf-model-census.thefomite-agent-censusirish-census
Irish Census 1901 & 1926
Person-level records from the 1901 and 1926 censuses of Ireland, as published by
the National Archives of Ireland — every individual return, in flat CSV.
Year
Rows
Size
Coverage
1901
4,434,939
4.31 GB
All of Ireland (32 counties)
1926
2,973,480
0.56 GB
Saorstát Éireann (26 counties)
Total
7,408,419
4.87 GB
The 1926 census is the first taken by the Irish Free State and was released to
the public in 2026 under the 100-year rule. The… See the full description on the dataset page: https://huggingface.co/datasets/Cianmcnally/irish-census.a2a-census
A2A agent census
DISCOVERED — read-only census of A2A (Agent2Agent) agent cards. Keyless crawl of /.well-known/agent-card.json + A2A v1.0 conformance + ONE controlled deterministic capability probe per agent. No real task was ever sent to a stranger agent; nothing published. The live board is GET https://councilof.ai/api/gspc.
Defensible seed list: the agent domains discovered genuinely on-chain-live in the
ERC-8004 live-filter (their declared service endpoints), plus a curated… See the full description on the dataset page: https://huggingface.co/datasets/csoai/a2a-census.uci-census-income-94
Dataset Card for "uci-census-income-94"
More Information needed
census-income
Dataset Card for Census Income (Adult)
This dataset is a precise version of Adult or Census Income. This dataset from UCI somehow happens to occupy two links, but we checked and confirm that they are identical.
We used the following python script to create this Hugging Face dataset.
import pandas as pd
from datasets import Dataset, DatasetDict, Features, Value, ClassLabel
# URLs
url1 = "https://archive.ics.uci.edu/ml/machine-learning-databases/adult/adult.data"
url2 =… See the full description on the dataset page: https://huggingface.co/datasets/cestwc/census-income.adult-census-competitionadult-census-income
Adult Census Income (Teeny-Tiny Castle)
This dataset is part of a tutorial tied to the Teeny-Tiny Castle, an open-source repository containing educational tools for AI Ethics and Safety research.
How to Use
from datasets import load_dataset
dataset = load_dataset("AiresPucrs/adult-census-income", split = 'train')
us-censuslicense: mit
ia-census
Internet Archive census (April 2016) — per-file md5+sha1
The April 2016 Internet Archive census
recorded md5 and sha1 for every file of every public IA item —
the only bulk file-hash inventory of the Archive ever published (the
census was not repeated; nothing uploaded after 2016-04-11 appears
here). This dataset is those two dumps joined — they are line-aligned
outputs of one item walk — into single witness rows co-observing both
digests, republished as page-indexed parquet for… See the full description on the dataset page: https://huggingface.co/datasets/david-ar/ia-census.oss-model-census
Open-weight model census
DISCOVERED — every row in this dataset is a census listing, not a measurement. n_measured = 0. Live board: https://councilof.ai/api/gspc
A frozen snapshot of open-licence text-generation models on the Hugging Face Hub.
n_frozen: 68,869 models (from 120,000 raw listings; slice: pipeline_tag=text-generation, sorted by downloads desc, first 120 pages of 1,000, kept only models with an explicit open-licence tag).
as_of: 2026-09-01T04:41:36Z (UTC), crawled… See the full description on the dataset page: https://huggingface.co/datasets/csoai/oss-model-census.mcp-census
MCP server census
DISCOVERED — read-only census of the public MCP (Model Context Protocol) server ecosystem. Keyless registry listing + MCP handshake initialize + tools/list only — never tools/call. Nothing published to any stranger server. The live board is GET https://councilof.ai/api/gspc.
Turned inward first. The first measured MCP entry is our own surface:
councilof.ai/mcp — server csoai-gspc-mcp, 7 tools (board_totals get_axis verify_card list_cards get_root get_card… See the full description on the dataset page: https://huggingface.co/datasets/csoai/mcp-census.agent-interop-census
Agent Interop Census
A census, not a scoreboard. 7,645 rows indexing what publicly exists in the
agent-interoperability ecosystem: MCP servers in the official registry, Hugging Face Spaces,
and open-licence repositories on GitHub.
Zero rows carry a measurement. graded: false and measurement: null on every single row.
A grade requires a run against a frozen bank; no run was performed here. Each row states, in
the row itself, what it is (an index entry observed in a public… See the full description on the dataset page: https://huggingface.co/datasets/csoai/agent-interop-census.x402-bazaar-census
x402 Bazaar Census
A dated, reproducible enumeration of the public x402 Bazaar discovery index — the catalogue
autonomous agents search to find services they can pay for over HTTP 402.
As far as we can establish, nobody has published a measurement of this index before.
As of 2026-09-04T15:48:58Z · content sha256 efc93ac5e76d506ecd6778cf4d323138…
What the index looks like
resources fetched
28,136
resources the index reports
28,136
coverage
100.0%… See the full description on the dataset page: https://huggingface.co/datasets/csoai/x402-bazaar-census.x402-settlement-census
x402 settlement census — 2026-09-06
We paid 316 conformant x402 hosts as an ordinary buyer and recorded what came back.
Not a survey of what hosts advertise — a record of what they did when real USDC arrived.
outcome
hosts
share
REFUSED
213
67.4%
DELIVERED
100
31.6%
NO_CHALLENGE
2
0.6%
MISMATCH
1
0.3%
Two in three conformant hosts refused a correctly-signed payment. Being listed in a Bazaar index
and answering a valid 402 is not the same as taking money and… See the full description on the dataset page: https://huggingface.co/datasets/csoai/x402-settlement-census.Adult-census-incomefitllm-fit-census
Local LLM Fit Census v1 — 2026-09-06
9,477 verdicts: 27 models × 93 devices (36 GPUs + 57 Mac configs) × per-platform quant tiers.
Each row is generated by fitllm-engine from architecture inputs pinned to official config.json files. Runtime and OS reserves remain documented estimates. Reproduce it yourself: npm run census.
Assumptions: context = min(8K, model max) · KV cache F16 · platform reserve/headroom per engine. Interactive per-combo pages: fitllm.run/can-i-run.… See the full description on the dataset page: https://huggingface.co/datasets/click6067/fitllm-fit-census.adult-census-income
Adult Census Income Dataset
The following was retrieved from UCI machine learning repository.
This data was extracted from the 1994 Census bureau database by Ronny Kohavi and Barry Becker (Data Mining and Visualization, Silicon Graphics). A set of reasonably clean records was extracted using the following conditions: ((AAGE>16) && (AGI>100) && (AFNLWGT>1) && (HRSWK>0)). The prediction task is to determine whether a person makes over $50K a year.
Description of fnlwgt (final weight)… See the full description on the dataset page: https://huggingface.co/datasets/lotusbdr-9/adult-census-income.us_census_tracts_2025census-backup.b-cdn.netioctl-census
The IOCTL Census (Structural Tier)
A corpus-scale, multi-architecture map of the Windows driver I/O-control
(IOCTL) dispatch surface, recovered deterministically across x86 and x64 from
27,087 signed drivers. This is the structural tier of the census described
in the companion paper: the recovered surface itself, everything derivable from
the already-public driver binary. It is a substrate for binary-analysis,
attack-surface, and vulnerability-research work, not a list of… See the full description on the dataset page: https://huggingface.co/datasets/mjbommar/ioctl-census.techstack-census
We Fingerprinted the Top 1,000,000 Websites — open data
Aggregates over a homepage technology-stack fingerprint of the Tranco top-1,000,000 domain
list, snapshot 2026-08-25 (run_id=top1m-2026-08-25-full-v2, detector version
2026.10.47). One record per domain — CDN, CMS, ecommerce platform, web server, SSL/TLS
issuer, DNS provider, analytics, and more — detected from homepage HTML and response headers,
aggregated into the tables below, plus a stratified ~10,000-domain row-level… See the full description on the dataset page: https://huggingface.co/datasets/crawlora-net/techstack-census.mcp-registry-census
MCP Registry Census
A longitudinal census of the public Model Context Protocol registry.
A single snapshot tells you what the registry contains. A series tells you how it is changing, and as far as I can tell nothing else tracks that. This dataset is the series, updated daily.
Files
File
Contents
census-history.csv
One row per census. 13 measurements per run, plus the date.
registry-snapshot-latest.jsonl
Most recent snapshot, distinct servers only… See the full description on the dataset page: https://huggingface.co/datasets/Ashsinha1/mcp-registry-census.eh-placebo-seed-distribution-census
placebo-seed-distribution-census -- aggregate exhaust
Aggregate-only: every file committed under this experiment's analysis-committed/ tree (dose-response tables, direction fits, gate AUROCs, manifests, and any other analysis artifact), copied byte-for-byte. No source question text, aliases, or per-row generation text -- analysis-committed/ never carries those.
HF repo: professorsynapse/eh-placebo-seed-distribution-census
Provenance
Experiment:… See the full description on the dataset page: https://huggingface.co/datasets/professorsynapse/eh-placebo-seed-distribution-census.global-pep-census
ProofAML — Global PEP Census Dataset
Research snapshot — not current data; production sanctions screening requires a live, monitored feed.
50,716 politically exposed persons, all official government sources, zero Wikidata.
A type-axis segment of the ProofAML corpus (global-pep-census): 17 sources, 50,716 entity records (version 2026-09-03), cut from the same emitter run as the master snapshot and governed by the same terms.
Why this segment
This is the… See the full description on the dataset page: https://huggingface.co/datasets/proofaml/global-pep-census.census-2011
India Census 2011 — District Level
Clean, versioned district-level data from India's 2011 Census.
640 districts. 29 columns. Zero missing values. Ready for pandas.
Quick Start
import pandas as pd
from huggingface_hub import hf_hub_download
path = hf_hub_download(
repo_id="indiaset/census-2011",
filename="census_2011_districts_final.parquet",
repo_type="dataset"
)
df = pd.read_parquet(path)
print(df.shape) # (640, 29)
What's In This… See the full description on the dataset page: https://huggingface.co/datasets/indiaset/census-2011.places-census-tract-data-gis-friendly-format-2024
PLACES: Census Tract Data (GIS Friendly Format), 2024 release
Description
This dataset contains model-based census tract level estimates in GIS-friendly format. PLACES covers the entire United States—50 states and the District of Columbia—at county, place, census tract, and ZIP Code Tabulation Area levels. It provides information uniformly on this large scale for local areas at four geographic levels. Estimates were provided by the Centers for Disease Control and… See the full description on the dataset page: https://huggingface.co/datasets/HHS-Official/places-census-tract-data-gis-friendly-format-2024.hf-spaces-census
Hugging Face Spaces Census
A complete snapshot of the public Spaces catalogue — 1,458,692 Spaces from 778,898 authors, retrieved 28 August 2026.
This is the population, not a sample. The listing was paginated to exhaustion, with zero duplicate identifiers and no private entries.
The headline
Excluding static Spaces — files on a CDN, which have no runtime and cannot fail — among the 1,150,413 hosted applications:
Spaces
Share
Broken
443,683
38.57%… See the full description on the dataset page: https://huggingface.co/datasets/Ashsinha1/hf-spaces-census.