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/api/v1/public/indicesGET
List all indices from the public snapshot tier.
Response
200 · List of index summaries
data *object[]
Show item properties
index_id *string
Stable identifier for the index (for example red). Use it as the {id} path parameter on the index detail, constituents, and price endpoints.
name *string
Full display name of the index.
ticker *string
Short uppercase symbol for the index (for example RED). The detail endpoint accepts either this ticker (case-insensitively) or index_id as its path parameter.
description *string
One-line description of what the index tracks, suitable for a listing card.
constituents_count *integer
Number of constituents in the index: member markets for a market-basket index, or child sub-indices for a composite. A derived index that inherits its book from a base index reports 0 and names that base in base_index_id.
is_composite *boolean
True for a composite index (its constituents are other indices and its price blends child sub-index values); false for a market-basket index (its constituents are exchange markets). Always present, so a client can branch on index kind even when the index has no constituents yet.
office_category *stringnull
The index's declared office category (lowercase, e.g. "senate"), the input to methodology weighting and composite child-weight derivation. Null for composites and uncategorized indices; always present.
latest_price?numbernull
Most recent index level, on the base-100 index scale (100 is neutral; for the probability-based families each point above or below 100 is one percentage point of the blended win probability). Omitted when the index has no computed value yet.
previous_close_1d?numbernull
The index level at the previous daily close, meaning the most recent completed daily close before the current day in US Eastern time, not a rolling 24-hour window. Baseline for change_1d.
change_1d?numbernull
Trailing percent change from the previous completed ET daily close (previous_close_1d) to the live tip. Omitted when there is no prior daily close.
price_change_1d?numbernull
Absolute 1-day change in index points (latest_price minus previous_close_1d), measured against the same previous ET daily close as change_1d. Omitted when there is no prior daily close.
price_change_7d?numbernull
Absolute 7-day change in index points (latest_price minus previous_close_7d), measured against the same daily-close baseline as change_7d. Omitted when there is no daily close that far back.
price_change_30d?numbernull
Absolute 30-day change in index points (latest_price minus previous_close_30d), measured against the same daily-close baseline as change_30d. Omitted when there is no daily close that far back.
price_change_90d?numbernull
Absolute 90-day change in index points (latest_price minus previous_close_90d), measured against the same daily-close baseline as change_90d. Omitted when there is no daily close that far back.
change_7d?numbernull
Trailing percent change from the index value 7 days ago to the live tip, from the daily close series. Omitted when there is no daily close that far back.
change_30d?numbernull
Trailing percent change over the last 30 days. Omitted when there is no daily close that far back.
change_90d?numbernull
Trailing percent change over the last 90 days. Omitted when there is no daily close that far back.
previous_close_7d?numbernull
The index value (daily close) 7 days before the snapshot, the baseline change_7d is measured against, so a client can show the absolute change on the same baseline. Omitted when there is no daily close that far back.
previous_close_30d?numbernull
The index value (daily close) 30 days before the snapshot.
previous_close_90d?numbernull
The index value (daily close) 90 days before the snapshot.
updated_at?string,null (date-time)
Timestamp of latest_price. Omitted when the index has no computed value yet.
methodology?stringnull
Key of the methodology family that defines this index's constituent weighting and level calculation, for example upfi, battleground, or total_return. Null for an index with no methodology recorded.
quote_convention?"percent" | "points"
The unit this index quotes trailing performance in. percent: render the change_* fields. points: render the price_change_* fields, because the level is a point sum and a percent of it carries no meaning.
base_index_id?stringnull
For a total_return index, the composite index it derives its book from; null for every curated family.
created_at?string (date-time)
When the index was created in this API. Returned by the authenticated indices list only.
display_order?integernull
Presentation ordering; lower values sort first, null sorts last.
halted?boolean
True when the latest index value was carried forward because the index fell below its constituent floor.
halt_valid_constituents?integernull
When halted, the valid (priced, guardrail-passing) constituents at the most recent halt cycle. Omitted when not halted.
halt_min_constituents?integernull
When halted, the category constituent floor the index fell below. Omitted when not halted.
halt_reason?stringnull
When halted, a human-readable explanation of the halt, composed from the constituent halt counts. Omitted when not halted.
party_side?"republican" | "democrat"
Which party line the basket is priced on, or null for a non-party index. Drives composition.state_exposure.party_lean (the Dem/Rep axis the state map colors on). Always present so a client can render the side an index carries rather than inferring it.
visibility?"public" | "superuser" | "organization"
Access level of the index. public is visible to everyone; organization is visible to members of listed organizations. Other reserved values may appear on authenticated responses. Omitted on the anonymous public tier, which returns only public indices.
meta *object
Request example
curl -X GET "https://api.adjacent.markets/api/v1/public/indices"
Response example
{
  "data": [
    {
      "index_id": "red",
      "name": "Republican Political Future Index",
      "ticker": "RED",
      "description": "Composite of Republican party-line contests across all levels of office in the United States",
      "constituents_count": 5,
      "is_composite": true,
      "office_category": null,
      "party_side": "republican",
      "latest_price": 96.6691,
      "previous_close_1d": 96.6815,
      "change_1d": -0.0217,
      "price_change_1d": -0.0124,
      "change_7d": 0.9579976564409233,
      "change_30d": 6.543321995939699,
      "change_90d": 8.343186711332823,
      "previous_close_7d": 95.7518,
      "previous_close_30d": 90.7322,
      "previous_close_90d": 89.2249,
      "updated_at": "2026-07-29T14:02:00Z",
      "methodology": "upfi",
      "created_at": "2026-06-02T14:20:24.299003Z",
      "display_order": 1,
      "halted": false
    }
  ],
  "meta": {
    "total": 10,
    "page": 1,
    "per_page": 1,
    "total_pages": 10,
    "has_next": true,
    "has_prev": false
  }
}
Adjacent API
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