Opinion Market Listings | BlockRun

Find matching open Opinion markets by topic, then review their full questions and available choices.

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Use opinion-markets-blockrun to list Opinion standalone binary markets and tradable categorical child markets. Parent categorical market rows are excluded. No market identifier is required for an initial list. If I request trading, an order book, a verified winner, a price guarantee or unsupported date/range controls, explain the limitation and ask how I want to proceed before changing my scope. Reuse my Toolmu connection; if setup is needed follow https://toolmu.com/SKILL.md. Read get_tool for this exact name and check current execution availability, maximum credits, balance, budget and existing authorization before an authorized run.

Put supported options directly inside queryParams, not queryParams.query; for example input {"queryParams":{"status":"open","limit":1}}. Follow https://docs.predexon.com/api-reference/opinion/markets for the exact optional filters: status open/closed, market_type binary/categorical, search of 3 to 100 characters, min_volume at least 0 labeled total USD volume, and the documented identifier/label arrays of at most 50 items. Use an integer limit from 1 to 100, defaulting to 20, and only sort volume, volume_24h, volume_7d, created, created_asc or expiration (default volume); do not add a separate order field. If a requested title query is too short or ambiguous, clarify it rather than silently broadening it. BlockRun describes market_id/event_id filter arrays as strings while the supplier describes integers: if these selectors are required, explain the unresolved encoding and ask how to proceed before coercing, dropping or substituting them. If exact multi-filter AND/OR behavior or an unspecified sort direction matters, explain the gap and clarify before changing the requested filters or order.

Show each market's own ID/title/slug/status and available parent event_id/event_slug/event_title. Group by returned event identifiers, never by guessing from title keywords, and retain missing parent context. Show outcome labels and original token/Predexon IDs; keep empty strings and null rather than manufacturing values. Preserve any supplied price without converting it to probability, assuming a complement or promising execution. Keep total_volume_usd, volume_24h_usd and volume_7d_usd as distinct source-reported USD-labeled metrics; do not rescale them by quote-token decimals or invent a normalization formula. Preserve ISO timestamps and distinguish created/cutoff/resolved time. Read result_token_id separately from status; do not invent a winner-label mapping.

Report pagination.count as this page's rows, not the entire market/event collection. Continue only within my existing scope, budget and authorization when has_more is true and the returned pagination_key is a nonempty string. Pass that opaque string unchanged directly as queryParams.pagination_key, preserving the same filters, sort and limit. If the key is absent, null or empty, report that continuation is unavailable; do not invent a key or repeat the first page. Empty results or a failed request do not prove that no markets exist; report actual failure without silently dropping a filter or retrying.

Task:
Find open Opinion markets about [your topic]. Show the full questions and choices.

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Connection guide

Up to 0.01122 credits / call

The final charge is based on confirmed usage. Unused reserved credits return to your available balance.

BlockRun

Opinion Market Listings | BlockRun

Find matching open Opinion markets by topic, then review their full questions and available choices.

You receive

A page of Opinion market records with identifiers, titles, status, outcome labels and token IDs, source-reported volume and any available parent-event or resolution details. Your Agent can group the returned rows by available event identifiers and compare their reported volume windows.

Start with your task

Find open Opinion markets about [your topic]. Show the full questions and choices.

What to know

Categorical parent markets are excluded as rows, and one page may contain only part of an event. Outcome prices can be null; numeric values are not guaranteed executable quotes or verified probabilities. Listing does not place orders or independently verify a winner.

Inputs & outputs

Inspect the current inputs, availability, and maximum charge before starting.

Input schema

Input schema
Field / Path	Type	Requirement	Meaning
Market-list query options`queryParams`	`object`	Optional	Optional filters, sort code, page limit and continuation key belong directly in this object. No market identifier is needed for an initial list.
Optional nested query object`queryParams.query`	`object`	Optional	The interface includes this object, but the endpoint options go directly in the parent queryParams; this nested object is not flattened.

View raw JSON

{
  "type": "object",
  "required": [],
  "properties": {
    "queryParams": {
      "type": "object",
      "properties": {
        "query": {
          "type": "object",
          "required": [],
          "properties": {}
        }
      }
    }
  },
  "additionalProperties": false
}

Result schema

No fixed output contract is available. Field types reflect saved result evidence; individual responses can differ.

Result schema
Field / Path	Type	Meaning
Returned market rows`result.markets`	`array`	Standalone binary markets and tradable categorical child markets in this page. Parent categorical markets are not included as separate rows.
Market ID`result.markets[].market_id`	`number`	Numeric identifier for this market row, distinct from its parent-event ID.
Market title`result.markets[].title`	`string`	Title of this market row. For a categorical child, read the available parent-event title as context.
Market slug`result.markets[].slug`	`string`	The market's string identifier. Keep it distinct from an event slug.
Market status`result.markets[].status`	`string`	Source-reported market status. Read it separately from resolution time and result-token metadata.
Parent-event ID`result.markets[].event_id`	`number`	Parent grouping identifier when provided for a categorical child. A missing value does not create an event or replace the market ID.
Parent-event title`result.markets[].event_title`	`string`	The parent question context when available; it can differ from the child market's title.
Parent-event slug`result.markets[].event_slug`	`string`	String identifier for the parent grouping when available. Preserve null instead of inventing a grouping.
Market description`result.markets[].description`	`string`	Description supplied for the market. An empty string means no description text was provided.
Market outcome records`result.markets[].outcomes`	`array`	Outcome records for this market row, not every child market under a categorical parent.
Outcome label`result.markets[].outcomes[].label`	`string`	The source's label for this market outcome. Retain it without deriving a winner from the label or price.
Outcome token ID`result.markets[].outcomes[].token_id`	`string`	Original token identifier string for the outcome. Keep long numeric-looking IDs as strings.
Predexon outcome ID`result.markets[].outcomes[].predexon_id`	`string`	Source outcome identifier. It may be an empty string; do not manufacture an ID to fill it.
Returned outcome price`result.markets[].outcomes[].price`	`number \| null`	Price value when populated by the indexer, otherwise null. Preserve the value; this endpoint does not establish currency conversion, executable quotes or verified probabilities.
Result-token reference`result.markets[].result_token_id`	`null \| string`	Returned result-token identifier when available. Preserve null and read it separately from status; no general winner-label mapping is supplied.
Condition ID`result.markets[].condition_id`	`string`	Condition identifier supplied for the market. Keep the original string, including any empty value.
Question ID`result.markets[].question_id`	`string`	Question identifier supplied for the market, distinct from the market and event IDs.
Reported total volume`result.markets[].total_volume_usd`	`number`	Source-reported total volume labeled USD. Preserve the amount; no independent normalization formula is provided here.
Reported 24-hour volume`result.markets[].volume_24h_usd`	`number`	Source-reported volume for the 24-hour window, labeled USD. Zero remains zero rather than a missing price.
Reported 7-day volume`result.markets[].volume_7d_usd`	`number`	Source-reported volume for the 7-day window, labeled USD. Read it separately from total and 24-hour volume.
Creation time`result.markets[].created_time`	`string`	Creation timestamp in ISO8601 format when provided. Preserve the original value and distinguish it from cutoff or resolution.
Cutoff time`result.markets[].cutoff_time`	`null`	Nullable cutoff timestamp in ISO8601 format. Null does not establish an unlimited trading period.
Resolution time`result.markets[].resolved_time`	`null \| string`	Nullable source resolution timestamp in ISO8601 format. Read it with returned result metadata without deriving a winner.
Source labels`result.markets[].labels`	`array`	Labels attached to the market. An empty array supplies no label values to classify the record.
Recurring collection metadata`result.markets[].collection`	`null`	Optional metadata for a recurring-market collection when supplied. Null does not establish a schedule; retain the original value.
Chain identifier`result.markets[].chain_id`	`string`	Source chain identifier string. Do not infer a personal wallet or normalize it to an undocumented network name.
Quote-token reference`result.markets[].quote_token`	`string`	Original quote-token reference. An address alone does not establish the outcome-price currency or a conversion factor.
Rows in this page`result.pagination.count`	`number`	Number of market rows in the current response, not all markets or all children in a parent event.
Page limit`result.pagination.limit`	`number`	Returned page-size setting. The supplier documents an integer from 1 to 100, defaulting to 20.
More rows flag`result.pagination.has_more`	`boolean`	Whether the source reports additional rows beyond this page. Read it with the returned continuation key.
Continuation key`result.pagination.pagination_key`	`string`	Opaque continuation value when returned. Preserve null or the original string; it is not a market identifier.

Additional notes

Keep the market and parent event distinct

Opinion lists standalone binary markets and tradable child markets under categorical parents. Parent categorical markets are excluded as separate rows. A child's short market title may describe one option within a broader parent question; event_title, event_id and event_slug provide that context when available. A page of child rows does not necessarily contain every option under that parent.

Status, market type, a title search or a known event slug can narrow the list. These options go directly in queryParams. The source documents a page size from 1 to 100, defaulting to 20, and a default sort code of volume. Sort codes do not establish every direction or tie rule. Market-ID and event-ID filter item types differ between the two service descriptions; the accepted encoding should be confirmed when those selectors are essential.

Read prices, activity and resolution separately

outcomes contains the outcome records for this market row. A price can be null when the indexer has not populated it; a supplied number should retain its original meaning and value. This endpoint does not state a currency conversion, probability formula or executable-quote guarantee. Keep outcome token IDs as strings, and preserve an empty Predexon ID rather than filling it.

The total, 24-hour and 7-day volume fields are separately labeled USD by the source. They are activity measures, not outcome prices or counts of market rows. Keep the reported values without applying a quote-token decimal conversion; this endpoint does not supply an independent normalization formula.

created_time, cutoff_time and resolved_time are nullable ISO8601 timestamps with different purposes. Read them separately from status and result_token_id; a closed label or price alone is not an independently verified winning outcome. Parent-event fields can be null for standalone binaries. collection may hold recurring-market metadata when available; null does not supply a recurrence schedule.

Understand the returned page

pagination.count is this page's row count, while has_more and an available opaque pagination_key describe continuation. An empty page does not establish complete Opinion coverage. See the Predexon Opinion market-list documentation for grouping and filter rules, and follow the Toolmu connection guide to connect your Agent.

Opinion Market Listings | BlockRun

Opinion Market Listings | BlockRun

You receive

Start with your task

What to know

Inputs & outputs

Input schema

Result schema

Keep the market and parent event distinct

Read prices, activity and resolution separately

Understand the returned page

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