> ## Documentation Index
> Fetch the complete documentation index at: https://docs.beliefstate.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# get_options_activity

> Get options activity

**Get options activity** · \$0.02 per call (x402, USDC)

Retrieves retained options bars, flow aggregates and open interest for one ticker. Select activity\_type, call/put right, expiration, strike and observation-date filters; returns typed instrument fields, OHLC, volume or open interest with units and source support. Open interest is a position measure; trading volume is a flow. Use explicit date/instrument filters for large histories; source-file order is not a globally sorted latest option chain. Current requests recheck stale mirror metadata; historical/pinned reads remain fixed. Continue with the returned snapshot, cutoff, filters and cursor or next\_offset; partial scans are not proof of no matches.

## Input parameters

| Parameter | Type | Required | Description |
| - | - | - | - |
| `cursor` | string | No | Archive continuation token; reuse with snapshot ID/hash, as\_of and unchanged filters. max length 4096 |
| `ticker` | string | Yes | |
| `as_of` | string | No | Availability cutoff, separate from event/period filters. Historical reads never refresh. |
| `snapshot_id` | string | No | Pin continuation to the returned snapshot ID; reuse with snapshot\_hash and as\_of. |
| `snapshot_hash` | string | No | |
| `filters_sha256` | string | No | Reuse the returned filter hash unchanged with continuation pages. |
| `offset` | integer | No | min 0; max 10000000 |
| `limit` | integer | No | Matching typed observations per page; default32. min 1; max 100 |
| `max_snapshot_age_hours` | number | No | Requested verification-age tolerance: default1hour for retained archives,24hours for closing-price references. Record dates and publication cadence are separate. max 87600 |
| `date_from` | string | No | Inclusive native date lower bound, selected by date\_field. |
| `date_to` | string | No | Inclusive native date upper bound, selected by date\_field. |
| `date_field` | "observation" | No | Date meaning; defaults to period for facts/macro/holdings/returns, event for insider trades, observation for options/short volume, scheduled for calendar. |
| `family` | "options" \| "open\_interest" | No | |
| `activity_type` | "option\_bar" \| "flow\_aggregate" \| "open\_interest" | No | |
| `right` | "C" \| "P" | No | |
| `expiration_from` | string | No | |
| `expiration_to` | string | No | |
| `strike_min` | number | No | min 0 |
| `strike_max` | number | No | min 0 |

## Transports

* **MCP:** `tools/call` with name `get_options_activity` at `https://beliefstate.ai/mcp` (account access) or `https://beliefstate.ai/v1/research/mcp` (wallet access). See [MCP integration](https://docs.beliefstate.ai/guides/mcp-server.md).
* **x402 HTTP:** `POST https://beliefstate.ai/v1/research/get_options_activity` with the arguments as a JSON body. An unpaid request returns an HTTP 402 payment quote.

## Example request

### MCP

```json theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_options_activity",
    "arguments": {
      "ticker": "NVDA"
    }
  }
}
```

### x402 HTTP

```bash theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
curl --request POST \
  --url 'https://beliefstate.ai/v1/research/get_options_activity' \
  --header 'Content-Type: application/json' \
  --data '{"ticker":"NVDA"}'
```

The example shows request shape only. Identifiers are placeholders, not records.

## Related

* [All research tools](https://docs.beliefstate.ai/tools/index.md)

*Contract version: 2026-11-08. Input parameters and tool metadata come from the
shared executable catalog. REST API version: v1.*


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