API ReferenceMacro, Rates & FX
Cross-asset signals
/api/v3/signals/cross_asset- Plan
- Starter and up
- Price
- 2 credits per call
- MCP tool
signals_cross_ asset
Cross-asset regime signals — the regime read taken across asset classes rather than from single tickers. Call this when the user asks about the broader market regime or wants cross-asset confirmation of a single-asset view. A value the source cannot have meant (a 0.0 missing-input marker, a NULL input the builder never read, or a level outside a wide plausibility range) is null, as is every field computed from it; the bucket's invalid_fields says which and why. There is no ICE Dollar Index level: fx.dx_front is always null, usd_proxy_eur_per_usd is 1/EURUSD from the CME euro future, and dxy_momentum is that proxy's direction only.
Parameters
This endpoint takes no parameters.
Response
A 200 is a JSON envelope: ok: true and this endpoint's own fields (see Macro, Rates & FX). 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_; read the code from error.
| Error | Meaning |
|---|---|
400 invalid_ticker | The 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 unauthorized | Missing or invalid API key. |
402 plan_required | Your 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_denied | This 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 not_found | No such resource. Not billed. |
422 validation | A parameter is missing, out of range or the wrong type; param names it. Not billed. |
429 rate_limited | Your plan's rate limit is spent for this window. Retry after Retry-After seconds. Not billed. |
503 paid_ | The data could not be served completely right now; retry later. Not billed. |
504 request_timeout | The 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 Macro, Rates & FX guide for this endpoint's fields and examples.