Coin API

Coin API is a financial data provider that delivers historical and real-time cryptocurrency market data — including price candles, individual trades, and bid/ask quotes — across thousands of trading pairs and exchanges. Connect it to Coupler.io to pull structured crypto market data directly into your analytics tools or AI assistants without writing a single line of code.

Why connect Coin API to Coupler.io?

• Centralize crypto market data — pull OHLCV candles, raw trades, and quote data into one place for unified analysis

• Automate historical pulls — schedule recurring data flows to keep your dashboards and models up to date

• Combine multiple symbols or entities — use Append or Join transformations to analyze several trading pairs side by side

• Send data to AI tools — pipe market data directly into ChatGPT, Claude, Gemini, or Perplexity for pattern analysis and summaries

Prerequisites

• A Coin API account with an active API key (get one at coinapi.io)

• The Symbol ID for the trading pair you want to pull data for (e.g., BITSTAMP_SPOT_BTC_USD) — find the full list in the Coin API docs

• A Coupler.io account

Quick start

Start with the OHLCV Historical Data entity using a single well-known symbol like BITSTAMP_SPOT_BTC_USD to verify your connection before pulling data for multiple pairs.

How to connect

1

Create a new data flow in Coupler.io. Go to your Coupler.io dashboard and click Add data flow. Search for Coin API and select it as your source.

2

Enter your Coin API key. Paste your API key into the authentication field. You can find or generate your key in the Coin API dashboard under your account settings.

3

Select an entity. Choose one of the three available entities: OHLCV Historical Data, Trades Historical Data, or Quotes Historical Data.

4

Configure your parameters. Enter the Symbol ID for your trading pair, set a time interval (for OHLCV), and use the date pickers to define your start and end dates. Set a record limit if needed (default is 100, max is 100,000).

5

Choose a destination. Select where you want your data to go — Google Sheets, Excel, BigQuery, Looker Studio, or an AI destination like ChatGPT, Claude, or Gemini.

6

Run the data flow. Click Run to execute a manual run and confirm that data loads correctly before setting up a schedule.

Available entities

Entity	Description
OHLCV Historical Data	Open, High, Low, Close, and Volume candles for a trading pair over a chosen time interval
Trades Historical Data	Individual trade transactions with price, volume, and timestamp
Quotes Historical Data	Historical bid and ask price quotes with timestamps