Wealthnow
Sign up

API ReferenceQuant Signals

Status

Factor predictors

GET/api/v3/factors/predictors/{ticker}
Plan
Starter and up
Price
3 credits per call
MCP tool
factor_predictors

academic open-source predictor panel for one stock — a compact vector of 13 replicated accounting anomalies (Sloan accruals, Cooper-Gulen-Schill asset growth, Titman capital investment, Novy-Marx gross profitability, Fama-French operating profitability, cash-to-assets, leverage change, earnings consistency, revenue growth, positive-NI/positive-CFO flags, current ratio, net share issuance) at monthly grain. Call it for a ready-made feature vector when you don't need the full ~460-column factor panel. Returns the series newest-last, or with latest=true only the single most-recent row as a name->value map; with no start/end it serves the LATEST AVAILABLE rows (lagged quarterly archive) and reports the actual window. Ticker is resolved to its internal security key automatically (the table has no ticker column).

Parameters

Path

tickerstringRequired

Query

startstringOptional

ISO date series start (omit both dates for the latest available rows)

endstringOptional

ISO date series end (omit both for the latest available rows)

latestbooleanOptional

True = only the single most-recent predictor row (name->value map)

Defaultfalse
limitintegerOptional

Max rows in series mode (newest kept); ignored when latest=true.

Default600
Range1 to 2000

Response

A 200 is a JSON envelope: ok: true and this endpoint's own fields (see Quant Signals). 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

Read the Quant Signals guide for this endpoint's fields and examples.