Gemini API

Beginner's Pick Cryptocurrency / No Auth Required Beginner HTTPS
Free to Use
69 C
Measured Score 0 50 100 Speed 17/30 Consistency 20/20 Security 18/20 Browser access 10/15 Transparency 4/15 TESTED 2026-08-10

Overview

Gemini is a U.S.-regulated cryptocurrency exchange API that provides public market data without authentication, making it beginner-friendly. It returns current bid/ask prices, recent trade history, and order book snapshots for major crypto pairs like BTC/USD and ETH/USD. Because no API key is needed for read-only market data, you can start querying immediately.

Beginner Tip

No sign-up is required to fetch public market data from Gemini; simply call the REST endpoint directly to get current BTC/USD prices in seconds.

Measurement Record

What actually happened when we called this API from our own infrastructure. Every value below was recorded by the request, not copied from the provider's documentation.

Request
GET https://api.gemini.com/v1/pubticker/btcusd
Result
HTTP 200 · application/json · 147 bytes
Response time
218 ms (median of 3) · fastest 216 ms
Transport
TLSv1.2 · ECDHE-RSA-AES128-GCM-SHA256 · certificate issued by Amazon
Browser CORS
Allowed — Access-Control-Allow-Origin: https://apisscore.com
Served by
istio-envoy
Recorded
2026-08-10

Fields Returned

Top-level fields present in the response we captured, with the type and value we actually received.

Field Type Value received
bid string 63959.45000
ask string 63959.46000
last string 63952.68000
volume object {3 fields}

Captured Response

Captured from a real request to https://api.gemini.com/v1/pubticker/btcusd on 2026-08-10. Long arrays and nested objects are truncated to keep the shape readable.

JSON Response · Captured
{
  "bid": "63959.45000",
  "ask": "63959.46000",
  "last": "63952.68000",
  "volume": {
    "BTC": "120.32621903",
    "USD": "7695184.1812355004",
    "timestamp": 1786391340000
  }
}

Field Reference

bid Current highest price a buyer is willing to pay.
ask Current lowest price a seller is willing to accept.
last Price of the most recently executed trade.
volume Object containing BTC and USD volume figures and the timestamp of the 24h window.

Implementation Example

Calls a real endpoint of this API. Replace any placeholder credentials with your own key.

Request
const url = "https://docs.gemini.com/rest-api/";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

How This API Fails

We deliberately sent this API a broken request and recorded exactly what came back on 2026-08-10. Knowing the shape of an error before you hit it makes error handling much easier to write.

HTTP 404 Requesting a path that does not exist application/json
{
  "result": "error",
  "reason": "EndpointNotFound",
  "message": "API entry point `/v1/pubticker/btcusd/apisscore-nonexistent-path` not found"
}

Common Errors & Troubleshooting

Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.

400 Bad Request (unknown symbol) The trading symbol format is wrong; Gemini requires lowercase concatenated pairs.
Use lowercase symbols like "btcusd" or "ethusd" — not "BTC/USD" or "btc_usd".
Empty response array Requesting trade history for a symbol with very low liquidity that has no recent trades.
Stick to high-volume pairs like btcusd or ethusd when learning; check /v1/symbols for the full list.
SSL certificate error Some older environments have outdated certificate stores that do not trust Gemini's cert.
Update your system's CA certificates or pass the --cacert flag with an updated bundle to curl.

Measured Score Breakdown

Live HTTP request to the API endpoint

Speed 17/30
Consistency 20/20
Security 18/20
Browser access 10/15
Transparency 4/15
Endpoint Response Time 218ms

Fully tested on Aug 10, 2026

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS UNKNOWN
Category Cryptocurrency
Difficulty Beginner
Endpoint last called: 2026-08-10

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