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Saylor Innovations Crypto Price History
x402
Saylor Innovations Crypto Price History is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).
Returns the USD price of up to 5 cryptocurrencies on any past date since 2013, along with percentage change and multiplier versus today's price
Price / call$0.01
Success—
StatusUnknown
How this service works
Crypto price on a past date - USD price of up to 5 coins on any day since 2013 with change and multiple versus today
Output
A JSON object containing the queried date, how many days ago that was, and an array of coin objects each with the historical USD price, current USD price, percentage change, price multiple versus today, the coin symbol, and a confidence indicator. Also includes the data source used, the time the check was run, and any coin identifiers that could not be resolved.
Example use cases
Portfolio cost-basis research
“What was the price of bitcoin and ethereum on November 3, 2021? I want to know how much they've gone up or down since then.”
Crypto investment return calculator
“If I had bought solana, cardano, and chainlink on January 1, 2022, what would each be worth now compared to then? Give me the prices on that date and the change percentages.”
Historical market event analysis
“Pull the USD prices of bitcoin, ethereum, bnb, ripple, and dogecoin on May 19, 2021 — that was a big crash day — and show me how each has performed versus today.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/crypto/price-history?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need historical USD prices for specific cryptocurrencies on a specific past date, especially when you also want the comparison to today's price (change % and multiple) in a single call. It supports up to 5 coins per request using standard CoinGecko IDs or on-chain addresses, making it ideal for portfolio analysis, investment return calculations, or research into past market events. Prefer this over generic market data APIs when you need the historical-vs-now delta computed for you automatically.
Side effects
- Coin ID not found in CoinGecko — returned in not_found array
- Date before 2013 or in the future — may return error or empty data
- More than 5 coins requested — schema requires up to 5
- Invalid date format (not YYYY-MM-DD) — request rejected
- Chain:address format not supported for all tokens — may fall back to not_found
- Network or upstream CoinGecko outage — may return stale or error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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