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API ReferenceAlt-Data

Status

Layoff filings

GET/api/v3/workforce/layoffs/{ticker}
Plan
Pro and up
Price
3 credits per call
MCP tool
workforce_layoffs

WARN-Act LAYOFF FILINGS for one company — the public notices an employer must file WEEKS BEFORE a cut, so they lead the press release and the next earnings call. Returns each filing (notice date, effective date, employees affected, site city/state, layoff type) newest first, plus TRUE window totals, a month-by-month series and the largest single filing; with_workforce also sizes the total against estimated headcount and names the headcount month used. Call it as a downside early-warning, or to confirm the scale of an announced restructuring — filings are SITE-level, so one restructuring appears as many rows. Coverage is US WARN notices from 1989 forward including forward-dated notices; only employers matched to a listed symbol are reachable by ticker, so an empty result is not proof there were no layoffs. A single notice far above the employer's modelled headcount (more than 5x, or more than 2x beside a smaller row for the same site and day) is quarantined: listed, flagged, counted in no total. Any other notice above it is flagged exceeds_modelled_headcount and still counted. Every answer states where the filing archive ends (data_through, is_stale); a window that starts after it, or mostly lies after it, carries a warning, and an empty one is 'not covered', never 'no filings'.

Parameters

Path

tickerstringRequired

Query

monthsintegerOptional

Lookback window in calendar months.

Default24
Range1 to 480
limitintegerOptional

Filing rows returned; the totals always cover the FULL window, not just this page.

Default200
Range1 to 2000
with_workforcebooleanOptional

Also size the total against estimated headcount.

Defaulttrue
employer_idintegerOptional

Pin a specific employer when the symbol is shared by more than one (see symbol_collisions). Answers are returned with identity_verified=false, since pinning asserts an identity we could not prove.

Response

A 200 is a JSON envelope: ok: true and this endpoint's own fields (see Alt-Data). 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 Alt-Data guide for this endpoint's fields and examples.