API ReferenceMarket Data
Full liquid crypto universeLegacy route
/api/crypto/universe- Plan
- Free and up
- Price
- 1 credit per call
- MCP tool
crypto_universe
The full liquid crypto universe: every priced USD pair that clears a dollar-volume floor (default $1M a day), ranked by dollar volume, stablecoins excluded. Both use the last complete UTC day (dollar_volume_24h; dollar_volume_basis says which window, and a pair with no previous day uses today so far; dollar_volume_utc_day_to_date is today so far). Row change_pct_24h is the change since 00:00 UTC, also served as change_pct_utc_day (change_basis); a rolling 24h change for one pair is on the quote tool. The floor is the only cap; nothing is cut to a top-N. Optional limit/offset page through the same book (has_more / next_offset) without hiding names. Counts: priced, excluded_stable, below_floor, returned. GET /api/crypto/sitting is a scored ordering of this book and GET /api/crypto/overnight a mover slice of it. A liquidity ranking, not conviction: not a forecast or a trade signal. Auth: X-API-Key.
Parameters
Query
limitintegerOptionalOptional page size. Omit to return EVERY pair that clears the floor. Pagination, not a universe cap.
1 to 1000offsetintegerOptionalOffset into the ranked liquid book.
00 to …min_dollar_volumenumberOptionalMinimum dollar volume over the last complete UTC day for a pair to count as tradeable.
1000000asset_classstringOptionalThis route is crypto-native. asset_class=crypto is accepted.
cryptocryptoResponse
A 200 is a JSON envelope: ok: true and this endpoint's own fields (see Quickstart). 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.