FAQ

What is a Symbol ID and how do I find the right one?

A Symbol ID uniquely identifies a trading pair on a specific exchange. The format is typically EXCHANGE_TYPE_BASEASSET_QUOTEASSET — for example, KRAKEN_SPOT_ETH_USD means ETH/USD spot on Kraken. You can browse the full list of valid Symbol IDs in the Coin API documentation. Always copy the exact ID — they're case-sensitive.

Can I pull data for multiple trading pairs in one data flow?

Each data flow is configured for a single Symbol ID. To analyze multiple pairs together, create a separate data flow for each symbol and then use the Append transformation in Coupler.io to merge them into one unified dataset before loading to your destination.

What time intervals are available for OHLCV data?

Coin API supports a wide range of periods — from 1 second up to 1 year. Common options include 1SEC, 1MIN, 5MIN, 15MIN, 1HRS, 1DAY, and 1MTH. The full list is available in the Coin API periods documentation. Note that the period parameter only applies to the OHLCV entity — trades and quotes are always tick-level.

How many records can I pull per request?

The default record limit is 100 and the maximum is 100,000 per request. If your date range and interval combination produces more rows than your limit allows, the data will be truncated at the limit. Adjust your date range, use a larger interval, or split the pull across multiple flows to work around this.

Does a free Coin API account give me access to full historical data?

No. Free-tier accounts typically have restricted access to historical data depth — often limited to the past 30 days. Requests for older data will return a 403 error. You'll need a paid Coin API plan to access extended historical coverage.

Can I send Coin API data to an AI tool like ChatGPT or Claude?

Yes. Coupler.io supports AI destinations including ChatGPT, Claude, Gemini, Perplexity, Cursor, and OpenClaw. You can pipe OHLCV or trades data directly into these tools to ask questions, generate summaries, or identify patterns in your market data.

What's the difference between time_exchange and time_coinapi in trades and quotes data?

time_exchange is the timestamp that the exchange itself reported for the event, while time_coinapi is when Coin API received and recorded it. For most analysis, time_exchange is the more accurate reference for when a trade or quote actually occurred. Differences between the two reflect network and processing latency.

For details on what fields are returned by each entity, see the Data Overview. For help with errors or missing data, check Common Issues.