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API ReferenceTape & Intraday

Status

Options chain

GET/api/v3/tape/options_chain/{ticker}
Plan
Pro and up
Price
3 credits per call
MCP tool
tape_options_chain

Historical OPTIONS CHAIN slice for one underlying on one snapshot day from the API's own daily chain capture — per contract: strike, expiry, dte, bid/ask/mid/last, day volume + VWAP, implied volatility, the full greeks (delta/gamma/theta/vega), open interest and underlying price, plus a summary over the captured contracts (contract/expiration counts, put/call OI + volume ratios, front-month ATM IV). The capture keeps a bounded near-the-money slice of each chain (since 2026-09-23: expiries within 120 days and strikes within 30% of spot, capped per underlying, 150 by default), not the full listed chain, so the summary's totals and put/call ratios describe that slice and can differ widely from the whole chain's; coverage states the slice and its rule. For full-chain put/call volume and open interest use intel_options_volume. Use it to reconstruct the IV surface, greeks or OI distribution AS IT STOOD on a past day, find where OI/volume concentrated, or pull the near-the-money strikes around an event. Omit date for the latest captured day (reported as snapshot_day); filter by side, expiration/dte, min OI/volume or a moneyness band; sort by open interest or dollar notional. Capture begins 2026-05-10. For the raw options TRADE tape use tape_options; for live GEX/dealer flow use the options_flow tools.

Parameters

Path

tickerstringRequired

Query

datestringOptional

Snapshot day YYYY-MM-DD — omit for the latest captured day.

contract_typestringOptional

Filter one side (also accepts C/P); default both.

One ofcallput
expirationstringOptional

Filter to one expiration date YYYY-MM-DD.

min_dteintegerOptional

Minimum days-to-expiry.

Range0 to 3650
max_dteintegerOptional

Maximum days-to-expiry.

Range0 to 3650
min_open_interestnumberOptional

Only contracts with open_interest >= this.

Range0 to …
min_volumenumberOptional

Only contracts with day_volume >= this.

Range0 to …
moneynessnumberOptional

Keep strikes within +/- this fraction of the underlying (0.1 = the near-the-money +/-10% band)

Range0 to 5
sortstringOptional
One ofopen_interestnotional
Defaultopen_interest
limitintegerOptional
Default100
Range1 to 2000

Response

A 200 is a JSON envelope: ok: true and this endpoint's own fields (see Tape & Intraday History). It carries X-Request-ID, the credit headers (X-Credits-Cost, X-Credits-Remaining, X-Credits-Receipt, X-Credits-Settlement) and the rate-limit headers.

A 200 is billed even when it holds no data (an empty list, null, found: false), so check those fields. Pricing & credits explains the credit headers.

Errors

No error is billed. The body is { "ok": false, "error", "detail", "request_id" }; read the code from error.

ErrorMeaning
400 invalid_tickerThe request is malformed, for example a ticker that is not a symbol: invalid_ticker, refused before any credit is reserved, with param naming the parameter. Not billed.
401 unauthorizedMissing or invalid API key.
402 plan_requiredYour plan does not include this tool, you are out of credits, or your workspace's spend cap paused its keys. plan_required names the plan that unlocks the tool; usage_exceeded means the credit balance is spent; spend_cap_reached means the key is paused until the cap resets or is raised: detail names the cap and the reset, cap_usd and resets_at (ISO 8601) carry them, and doc_url links pricing and credits. Not billed.
403 scope_deniedThis API key is limited to some products and this tool is not one of them. product names the tool's product and scopes the key's products. An upgrade does not change it: use a key whose scopes include the product, or change this key's scopes. Not billed.
404 unknown_tickerNo data source lists this ticker, active or delisted: the market-data listing and the security master both say it does not exist. param names the parameter. Not billed. Best-effort: it is answered only when the route itself found nothing, and after 20 lookups of new symbols per API key per minute the route's own answer stands.
422 validationA parameter is missing, out of range or the wrong type; param names it. Not billed.
429 rate_limitedYour plan's rate limit is spent for this window. Retry after Retry-After seconds. Not billed.
503 paid_data_unavailableThe data could not be served completely right now; retry later. Not billed.
504 request_timeoutThe request ran past the server's time budget; retry. Not billed.

This table lists what the spec declares for this route. Error responses lists every code FIRM sends, with when to retry.

Guides

Tape & Intraday HistoryIntroduction