Promethean Markets
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Pricing

Priced by usage, not by promise.

Every tier buys the same certified archive — the tiers differ only in how much of it you can pull per day. Uncertified data is never sold, on any plan.

Explore

Real data on day one.

Free
request access · pre-GA
Request access
Full catalog, availability index & schema docs — no key needed
2 file downloads / day from the full archive, free forever
Full pipeline test incl. SHA256 verification
Community support
MOST POPULAR
Builder

Full history for one project.

$19.99
per month · launch pricing
Request access
Everything in Explore
400 file downloads / day across the full archive
2 API keys (at GA)
Email support
Desk

Full history for a team that syncs daily.

$49.99
per month · launch pricing
Request access
Everything in Builder
2,500 file downloads / day
10 API keys with per-key budgets (at GA)
Priority support & coverage requests (at GA)
Enterprise

Whole-archive sync and bespoke terms.

Custom
annual · invoiced
Talk to us
Negotiated or unmetered budgets
Bulk object-storage sync of the whole archive
SLA, invoicing & certification reporting
Redistribution licensing where appropriate
Priority venue & coverage requests
What a budget means

Downloads per day, translated into archive-days.

TierDownloads / dayPulls per dayIn practice
Explore2 / dayany 2 filesTwo real files a day from anywhere in the archive — a day of trades today, its books tomorrow. Enough to evaluate genuine data end to end, forever free.
Builder400 / day≈ 2.6 archive-daysBackfill a month of one venue in an afternoon, or keep several channels synced daily with room for research pulls.
Desk2,500 / day≈ 16 archive-daysBackfill the entire archive in days, then sync everything daily with an order of magnitude of headroom.
Enterprisenegotiatedwhole archiveBulk sync outside the request path entirely — the archive replicated to you.

One archive-day is every file for every released venue for one UTC day — currently 156 Parquet files. The mapping is computed from the live released-lane index, so it stays honest as venues join.

Pricing FAQ

The mechanics.

What counts as one download?
One Parquet file from /v1/download. A full archive-day is currently 156 files. Manifests, the catalog, and availability are never metered — verification is free, so re-hashing every byte you buy costs nothing. This is what the archive-days column is computed from; as venues join, the mapping on this page updates with the live index.
What happens at the budget?
Downloads over budget return 429 daily_budget_exceeded and never silently charge. Budgets reset at 00:00 UTC. Failed auth never consumes budget — and neither do manifests, the catalog, or availability.
Do new venues cost extra?
No. When a venue certifies into the released archive, every paid tier covers it — budgets and prices do not change because coverage grew.

More in the full FAQ — including licensing, verification and how new venues join.Certified history restarts at the ten-source inception day; licensing terms live on the data license page.