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API · /stonfi-api

STON.fi API

degraded 3,243 Subscribers

Live data from STON.fi, the largest decentralised exchange on TON (The Open Network, the Telegram-native blockchain). The overview endpoint returns the DEX's current total value locked plus lifetime volume, wallets and trades. The pools endpoint returns the top liquidity pools by volume, APY or liquidity — each with its token pair, last price, base/quote volume and liquidity, LP token USD price and APY. The assets endpoint searches STON.fi's token registry by symbol and returns each token's live USD price, decimals and contract address. Read live from STON.fi, nothing stored. The only TON-native DeFi feed here — distinct from Ethereum, Solana and Sui DEX feeds — this is STON.fi's own TON DEX pool, volume/APY and token-pricing layer.

#stonfi #ton #dex #defi #liquidity-pools #amm #telegram #crypto
api.oanor.com/stonfi-api
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Machine-readable spec so AI agents can integrate this API.

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

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

STON.fi API — live data on the oanor API marketplace

API health

degraded
Uptime
100.00%
Server probes · 24h
Avg latency
3255 ms
Server probes · 24h
Subscribers
3,243
active
Total calls
76
last 7 days
status Full status page → · 12 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 2,200 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 2.2k calls/month
  • 3 req/sec
  • All endpoints
  • No credit card
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Starter

€9.00 /month

  • 58,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 58k calls/month
  • 15 req/sec
  • Email support
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Pro

€26.00 /month

  • 320,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 320k calls/month
  • 40 req/sec
  • Priority support
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Scale

€60.00 /month

  • 1,950,000 calls / month
  • 120 requests / second
  • Hard cap (429 above quota, no overage)
  • 1.95M calls/month
  • 120 req/sec
  • Dedicated SLA
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Live on-chain data from The Open Network (TON / Toncoin), the layer-1 blockchain integrated with Telegram — no key, nothing cached, nothing stored. The network endpoint returns the latest masterchain block (the chain tip). The account endpoint returns any TON address's balance (in TON and nanoTON), account state and last-transaction reference. The transactions endpoint returns an address's most recent transactions with counterparties, value, fee and time. Addresses accept raw (0:.. / -1:..) or user-friendly (EQ.. / UQ..) form. This is live blockchain and network data straight from the public TON node API — distinct from the exchange-ticker, price and market APIs in the catalogue. Built for TON wallets, explorers, dashboards and on-chain analytics.

api.oanor.com/ton-api

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Live TAC on-chain data via Blockscout. TAC is the TON Application Chain, an EVM layer that brings Ethereum apps to the TON ecosystem; gas and balances are in TAC. Network stats, gas prices, latest blocks, a block by height or hash, address detail with TAC balance, a transaction by hash, ERC-20 token metadata and a universal search across addresses, tokens, blocks and transactions. Real data, no key.

api.oanor.com/tac-api

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Sifchain API

Live on-chain data for Sifchain (chain id sifchain-1) — the Cosmos-SDK Layer-1 omni-chain decentralised exchange, whose native token is ROWAN — served directly from public LCD/REST nodes with multi-node failover. The status endpoint returns the latest block height and time, chain id, the staking bond denom and the current minting inflation rate. The validators endpoint lists the active bonded validator set ranked by stake, each with its moniker, operator address, self-plus-delegated ROWAN, commission rate and jailed flag. The supply endpoint returns the total ROWAN supply, the amount bonded in staking and the resulting bonded ratio. The governance endpoint returns the most recent on-chain proposals with their id, title, status and voting window. ROWAN uses an 18-decimal base denomination which is converted to whole ROWAN with exact big-integer scaling, and every figure is read live from the chain — nothing bundled or modelled — behind a short server-side cache with keep-warm so the feed stays fast and fresh. Ideal for staking dashboards, validator and delegator tooling, explorers, governance trackers and portfolio or analytics apps across the Cosmos and cross-chain DEX ecosystem. Live keyless upstream. 5 endpoints.

api.oanor.com/sifchain-api

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Aster Perpetual Futures DEX API

Live market data for Aster (asterdex), the perpetual-futures DEX, with no key. List every perpetual symbol with contract specs; pull a 24h ticker (last/high/low/open price, percentage change, volume) for one symbol or all 480+ markets; get the funding feed with mark price, index price and the latest funding rate; read the live order book; stream recent public trades; and fetch OHLC candlesticks across multiple intervals. Symbols are Binance-style tickers (BTCUSDT, ETHUSDT) — ideal for derivatives dashboards, funding-rate monitors and charting.

api.oanor.com/aster-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for STON.fi API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call STON.fi API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for STON.fi 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 STON.fi API cost?
STON.fi API has a free tier with 100 calls / month. Paid plans start at €9.00 / 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 STON.fi API GDPR-compliant?
All requests to STON.fi 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/stonfi-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/stonfi-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/stonfi-api/SOME_PATH");
curl_setopt($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/stonfi-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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