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API · /tac-api

TAC API

healthy 4,509 Subscribers

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.

#tac #ton #ton-application-chain #evm #l2 #blockchain #web3 #telegram
api.oanor.com/tac-api
Get an API key Try in playground → Contact provider

Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
389 ms
Server probes · 24h
Subscribers
4,509
active
Total calls
63
last 7 days
status Full status page → · 18 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 1,900 calls / month
  • 1 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,900 calls/month
  • 1 req/sec
  • All endpoints
  • No credit card
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Basic

€13.50 /month

  • 82,500 calls / month
  • 10 requests / second
  • Hard cap (429 above quota, no overage)
  • 82.5k calls/month
  • 10 req/sec
  • Email support
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Pro

€41.50 /month

  • 560,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 560k calls/month
  • 20 req/sec
  • Priority support
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Mega

€131.00 /month

  • 2,850,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 2.85M calls/month
  • 50 req/sec
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

STON.fi API

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.

api.oanor.com/stonfi-api

KyberSwap API

Live DEX-aggregator swap quotes from KyberSwap, which routes a trade across every decentralised exchange and liquidity pool on a chain to find the best output. The quote endpoint prices a swap between two tokens on Ethereum, Arbitrum, Base, Optimism, Polygon or BNB Chain — it returns the amount received, the USD values in and out, the price impact, the estimated gas cost and the DEXs the route passes through. The tokens endpoint lists the supported tokens per chain. The chains endpoint lists supported chains. Read live from KyberSwap, nothing stored. This is KyberSwap's own multi-chain EVM swap-routing and best-price layer — distinct from single-DEX feeds and from Solana swap aggregators.

api.oanor.com/kyberswap-api

EVM Wallet Balance API

Live native-coin balance for any EVM wallet address across the major chains as an API, read straight from each network's public JSON-RPC node. For any 0x address it returns the native balance (in coin units and in wei), the transaction count (nonce), and whether the address is a smart contract. Check one chain, or fan out across every supported chain at once to see where a wallet holds funds — Ethereum, Polygon, BNB Smart Chain, Arbitrum, Optimism, Base and Avalanche. The wallet-balance and address-lookup layer every wallet app, portfolio tracker and dashboard needs. Live, no key, no cache. Distinct from gas-fee and price APIs — this is on-chain address balances.

api.oanor.com/walletbalance-api

Multi-Chain Gas Fees API

Live multi-chain EVM gas-fee oracle — the gas estimate every wallet, bridge and dApp needs — computed straight from each network's public JSON-RPC node. Using EIP-1559 fee history it derives the next block's base fee and slow, standard and fast priority-fee tiers from the recent reward percentiles, and returns per tier the priority fee, the suggested max fee and the resulting total gas price, all in gwei. It also estimates the cost of a transaction — a plain transfer or any gas limit you pass — in the chain's native coin. Supports Ethereum, Polygon, BSC, Arbitrum, Optimism, Base and Avalanche. Live, no key, no cache. Distinct from price, market-cap and on-chain TVL APIs — this is the real-time gas-price layer.

api.oanor.com/gasfees-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for TAC API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call TAC API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for TAC 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 TAC API cost?
TAC API has a free tier with 100 calls / month. Paid plans start at €13.50 / 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 TAC API GDPR-compliant?
All requests to TAC 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/tac-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/tac-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/tac-api/SOME_PATH");
curl_setopt($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/tac-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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