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API · /stellardex-api

Stellar DEX (SDEX) Order Book & Trades API

healthy 4,599 Subscribers

The Stellar Decentralized Exchange (SDEX) central-limit order book, live from the public Stellar Horizon API — no key, nothing cached. Where the pools reader covers Stellar's AMM and the asset reader covers token metadata, this surfaces the on-chain order book the others miss. Pull the live bids and asks for any asset pair with their price and amount, plus the derived best bid, best ask, mid price and spread. Get a compact ticker for a pair — best bid/ask, mid, spread and the last executed trade. And read the most recent executed trades, network-wide or filtered to a single pair, with their price and base/counter amounts. Defaults to the deeply-traded XLM/USDC pair; quote any pair by passing the selling and buying assets (asset code plus issuer, or XLM for native). The order-book-and-trading layer for Stellar wallets, swap UIs, market-makers and analytics. Live from horizon.stellar.org.

#stellar #sdex #order-book #dex #trades #xlm #trading #crypto
api.oanor.com/stellardex-api
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Machine-readable spec so AI agents can integrate this API.

/api/stellardex-api/openapi.json
/api/stellardex-api/llms.txt

Discovery: GET /api/index.json lists every API.

Stellar DEX (SDEX) Order Book & Trades API — live data on the oanor API marketplace

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
262 ms
Server probes · 24h
Subscribers
4,599
active
Total calls
52
last 7 days
status Full status page → · 8 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 6,800 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 6.8k calls/month
  • 3 req/sec
  • All endpoints
  • No credit card
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Starter

€10.50 /month

  • 132,000 calls / month
  • 9 requests / second
  • Hard cap (429 above quota, no overage)
  • 132k calls/month
  • 9 req/sec
  • Email support
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Pro

€36.50 /month

  • 768,000 calls / month
  • 22 requests / second
  • Hard cap (429 above quota, no overage)
  • 768k calls/month
  • 22 req/sec
  • Priority support
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Business

€99.50 /month

  • 4,900,000 calls / month
  • 55 requests / second
  • Hard cap (429 above quota, no overage)
  • 4.9M calls/month
  • 55 req/sec
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

Stellar Pools API — oanor API marketplace

Stellar Pools API

Read live Stellar liquidity pools — the network's native automated market maker — straight from the public Horizon API, no key. Every Stellar pool is a constant-product market maker between two assets; this surfaces what asset and order-book readers miss: browse the pools with their two reserves, fee, share count and the number of trustlines (participants); read any single pool by its id; or find every pool that holds a given asset, against XLM or another token, to see exactly where a token has on-chain liquidity and at what depth. The automated-market-maker layer for Stellar wallets, anchors, swap UIs, liquidity providers and analytics. Live from the network; short cache only.

api.oanor.com/stellarpools-api

 Stellar Asset API — oanor API marketplace

Stellar Asset API

Read live data on Stellar assets and the native Stellar DEX, straight from the public Horizon API — no key. Resolve any issued asset (code plus issuer) to its on-chain stats: total authorized supply, number of holding accounts, claimable-balance, liquidity-pool and Soroban-contract amounts, the authorization flags (auth required, revocable, clawback) that tell you how tightly the issuer controls it, and its Soroban contract id. List every issuer of an asset code to survey them and spot impersonators — anyone can issue an asset with any code, so verifying the exact issuer matters. And pull the live order book for an asset against XLM (or any counter asset) on Stellar's built-in decentralized exchange — best bid, best ask and the spread. Distinct from account-, payment- and transaction-level APIs: this is the asset-and-market layer for Stellar wallets, anchors, stablecoin issuers and trading tools. Live from the network; short cache only.

api.oanor.com/stellarasset-api

 Stellar (XLM) On-Chain API — oanor API marketplace

Stellar (XLM) On-Chain API

Live on-chain data from the Stellar network, the open blockchain for payments and asset issuance behind the lumen (XLM), served straight from Stellar's public Horizon API — no key, nothing cached. The account endpoint returns any address's full wallet: its XLM balance and every issued asset it holds — Stellar is the home of anchored stablecoins like USDC, so a wallet shows native lumens alongside its tokens, each with the asset code, issuer and balance — plus the account sequence, sub-entry count and home domain. The payments endpoint returns the account's most recent payments in and out, each with the counterparty, asset, amount and time. The transactions endpoint returns the account's recent transactions with the ledger, fee, operation count, success flag and memo. The network endpoint returns the live state of the network itself: the latest ledger, the base fee and the fee percentiles and ledger capacity that tell you how congested the network is. Everything is read live from Horizon, nothing stored. This is the Stellar on-chain layer for any wallet, anchor, exchange, payments or analytics app. Distinct from the XRP Ledger, EVM and Solana on-chain APIs and from price feeds — this is Stellar account state, multi-asset balances, payments and network health. 4 endpoints, no key on our side.

api.oanor.com/stellar-api

 Taiwan Real-Time Quote & Depth API — oanor API marketplace

Taiwan Real-Time Quote & Depth API

Live intraday quotes and order-book depth for the Taiwan market (the TWSE main board and the TPEx over-the-counter exchange), with no key. Read the live intraday quote for one or more stocks by code (current price, open/high/low, previous close, change and cumulative volume); and the five-level order book (the top five bid and ask prices and sizes). The Taiwan-equities / real-time / level-2-depth layer for trading dashboards and execution tools — distinct from end-of-day readers, this is the live intraday tape with order-book depth, across both TSE and TPEx. Live; short cache only.

api.oanor.com/taiwanrealtime-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Stellar DEX (SDEX) Order Book & Trades API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Stellar DEX (SDEX) Order Book & Trades API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Stellar DEX (SDEX) Order Book & Trades API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Stellar DEX (SDEX) Order Book & Trades API cost?
Stellar DEX (SDEX) Order Book & Trades API has a free tier with 100 calls / month. Paid plans start at €10.50 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Stellar DEX (SDEX) Order Book & Trades API GDPR-compliant?
All requests to Stellar DEX (SDEX) Order Book & Trades API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/stellardex-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/stellardex-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/stellardex-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/stellardex-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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