VOTE-SCOPE DATA · VERSION 1.0
Forecast data built to be cited.
A read-only catalogue of Vote-Scope forecasts, polls, candidates, primaries, original indexes and special elections. Existing /web_data/ resources remain canonical; this API adds discovery, provenance, checksums and stable backlinks.
ATTRIBUTION
Link to the desk you use.
When republishing a Vote-Scope forecast, use “According to Vote-Scope” and link to the dataset’s backlink_url. That URL points readers to the relevant forecast, methodology and context—not merely to a raw file.
CURRENT CATALOGUE
43 public datasets
As of October 15, 2026
Election forecast
Canada federal election forecast
- Data through
- 2026-10-15
- Model
- 4.0
- Snapshots
- 100
Election forecast
Quebec general election 2026 forecast
- Data through
- 2026-10-04
- Model
- 4.0
- Snapshots
- 78
Election forecast
Ontario election forecast
- Data through
- 2026-10-15
- Model
- 4.0
- Snapshots
- 79
Election forecast
British Columbia election forecast
- Data through
- 2026-10-15
- Model
- 4.0
- Snapshots
- 27
Election forecast
United Kingdom general election forecast
- Data through
- 2026-10-15
- Model
- uk_fork_v1
- Snapshots
- 75
Election forecast
2026 U.S. House forecast
- Data through
- 2026-10-15
- Model
- 4.0
- Snapshots
- 90
Election forecast
2026 U.S. Senate forecast
- Data through
- 2026-10-15
- Model
- 4.0
- Snapshots
- 91
Election forecast
2026 U.S. governor forecast
- Data through
- 2026-10-15
- Model
- 4.0
- Snapshots
- 40
Election forecast
2028 U.S. presidential primary desk
- Data through
- 2026-10-15
- Model
- 0.2
- Snapshots
- 53
Election forecast
2027 French presidential election forecast
- Data through
- 2026-10-15
- Model
- 0.2
- Snapshots
- 61
Sports forecast
NHL forecast board
- Data through
- 2026-06-16T13:03:17.819336+00:00
- Model
- BSTS + Monte Carlo + GoalieLayer
- Snapshots
- 0
Sports forecast
MLB forecast board
- Data through
- 2026-10-15
- Model
- pythagenpat+log5 v0.1
- Snapshots
- 79
Polling archive
Canada federal polling archive
- Data through
- 2026-10-09
- Model
- Desk-specific
- Records
- 285
- Snapshots
- 0
Polling archive
Quebec 2026 polling archive
- Data through
- 2026-10-04
- Model
- Desk-specific
- Records
- 99
- Snapshots
- 0
Polling archive
Ontario polling archive
- Data through
- 2026-09-17
- Model
- Desk-specific
- Records
- 47
- Snapshots
- 0
Polling archive
British Columbia polling archive
- Data through
- 2026-10-12
- Model
- Desk-specific
- Records
- 54
- Snapshots
- 0
Polling archive
United Kingdom polling archive
- Data through
- 2026-10-14
- Model
- Desk-specific
- Records
- 641
- Snapshots
- 0
Polling archive
2026 U.S. House polling archive
- Data through
- 2026-10-14
- Model
- Desk-specific
- Records
- 1,062
- Snapshots
- 0
Candidate registry
Quebec 2026 official candidate registry
- Data through
- 2026-09-18T16:30:39.359695+00:00
- Model
- Desk-specific
- Records
- 908
- Snapshots
- 0
Turnout
Quebec 2026 advance-poll turnout by riding (preliminary)
- Data through
- 2026-09-28
- Model
- Desk-specific
- Records
- 127
- Snapshots
- 0
Candidate registry
2026 U.S. House candidate registry
- Data through
- 2026-10-15
- Model
- Desk-specific
- Records
- 2,699
- Snapshots
- 0
Candidate registry
2026 U.S. Senate candidate registry
- Data through
- 2026-10-15
- Model
- Desk-specific
- Records
- 381
- Snapshots
- 0
Primary calendar
2026 U.S. congressional primary desk
- Data through
- 2026-10-15
- Model
- Desk-specific
- Records
- 89
- Snapshots
- 0
Vote-Scope index
Vote-Scope Lame-Duck Index
- Data through
- 2026-10-15
- Model
- Desk-specific
- Snapshots
- 0
Vote-Scope index
Vote-Scope Canada Goose Index
- Data through
- 2026-10-15
- Model
- Desk-specific
- Snapshots
- 0
Vote-Scope index
Vote-Scope CUSMA Showdown
- Data through
- 2026-10-15
- Model
- Desk-specific
- Snapshots
- 0
Vote-Scope index
Vote-Scope French Republican Front Index
- Data through
- 2026-10-15
- Model
- Desk-specific
- Snapshots
- 0
Vote-Scope index
Vote-Scope Fraser Interim Index
- Data through
- 2026-10-15
- Model
- Desk-specific
- Snapshots
- 0
Vote-Scope index
Vote-Scope Latino Electoral Radar
- Data through
- 2026-10-15
- Model
- Desk-specific
- Records
- 214
- Snapshots
- 0
Vote-Scope index
Quebec 2026 candidate equity index
- Data through
- 2026-09-18
- Model
- Desk-specific
- Snapshots
- 0
Special election
Pending Canadian federal by-elections
- Data through
- 2026-10-15
- Model
- Desk-specific
- Records
- 7
- Snapshots
- 0
Special election
Pending Ontario by-elections
- Data through
- 2026-10-15
- Model
- Desk-specific
- Records
- 3
- Snapshots
- 0
Special election
Georgia 13th District special election
- Data through
- 2026-09-08
- Model
- 1.0
- Snapshots
- 0
Special election
Florida 20th District pending special election
- Data through
- 2026-10-15
- Model
- 1.0
- Snapshots
- 0
Special election
Texas 23rd District pending special election
- Data through
- 2026-10-15
- Model
- 1.0
- Snapshots
- 0
Special election
Clacton recall watch — probability of a second by-election and 24 race scenarios
- Data through
- 2026-09-04T00:30:30.730629+00:00
- Model
- Desk-specific
- Snapshots
- 0
Special election
2026 Holborn and St Pancras by-election forecast
- Data through
- 2026-10-15
- Model
- v0.1-fundamentals
- Snapshots
- 0
Special election
2026 Clacton by-election forecast
- Data through
- 2026-08-12
- Model
- v0.7-single-poll-risk
- Snapshots
- 0
Track record
Vote-Scope resolved prediction record
- Data through
- See dataset
- Model
- Desk-specific
- Records
- 12
- Snapshots
- 0
Special election
Georgia 14th District special runoff — resolved April 7, 2026
- Data through
- 2026-04-21
- Model
- 1.0
- Snapshots
- 0
Special election
New Jersey 11th District special election — resolved April 16, 2026
- Data through
- 2026-04-21
- Model
- 1.0
- Snapshots
- 0
Special election
California 1st District special election — resolved June 2, 2026
- Data through
- 2026-08-03
- Model
- 1.0
- Snapshots
- 0
Special election
California 14th District special election — August 18 general, unofficial count pending September 25 certification
- Data through
- 2026-09-08
- Model
- 1.0
- Snapshots
- 0
WHAT CAN I BUILD?
From newsroom graphics to reproducible research.
Retrieve the latest forecast or polling catalogue for an election graphic.
Compare immutable runs to explain how a race changed over time.
Cite a dated projection and send readers back to its Vote-Scope desk.
TECHNICAL EXAMPLES
Start with the manifest, then request only what you need.
Every endpoint is public JSON over HTTPS. No account, token or software development kit is required.
01Discover the catalogue with curl
curl -sS https://vote-scope.com/api/v1/manifest.json02Load polling indexes in JavaScript
const response = await fetch(
'https://vote-scope.com/api/v1/polls.json'
);
const { datasets } = await response.json();
const pollingIndexes = datasets.filter(
({ kind }) => kind === 'polling_index'
);
console.table(pollingIndexes);03List special elections in Python
import json
from urllib.request import urlopen
url = "https://vote-scope.com/api/v1/special-elections.json"
with urlopen(url) as response:
catalogue = json.load(response)
for race in catalogue["datasets"]:
print(race["title"], race["latest_url"])04Inspect provenance with jq
curl -sS https://vote-scope.com/api/v1/manifest.json | jq '
.datasets[]
| {id, data_through, latest_sha256, backlink_url}
'STATIC BY DESIGN
Simple files, explicit provenance.
latest.json resources change as forecasts update. Historical run files are immutable and publish with SHA-256 checksums in the manifest. Cross-origin requests are allowed and catalogues are cached briefly.
Version 1 stability contract
Additions to /api/v1/ are backwards-compatible. A change that removes or redefines existing fields will publish under a new API version. Canonical /web_data/ URLs remain in place.