API · /ens-api

ENS Resolver API

healthy 4,110 Subscribers

Live Ethereum Name Service resolution — the phone book of web3, no key, nothing cached. It turns a human .eth name into the wallet address behind it and back again, and reads the on-chain profile records the owner has set. The resolve endpoint takes a name like vitalik.eth and returns the Ethereum address, the avatar, the primary-name flag, the resolver contract, the content hash (for decentralised websites) and every text record the owner published — Twitter, GitHub, Reddit, Discord, Telegram, email, website and description — plus any multi-chain wallet addresses: vitalik.eth resolves to 0xd8dA…96045 with Twitter @VitalikButerin and GitHub vbuterin. The reverse endpoint does the opposite — give it any Ethereum address and it returns that address's primary ENS name and the same profile, so a bare 0x… becomes a human identity. The records endpoint returns just the profile text records for a name. This is the name-resolution and on-chain-profile layer every wallet, dapp, block explorer, payment and web3 app needs: address to name and name to address, with the owner's verified social links. Live from the Ethereum Name Service, nothing stored. Distinct from raw-RPC and token-metadata APIs — this is ENS naming and profile data. 4 endpoints.

#ens #ethereum #web3 #name-service #wallet #resolver #crypto

api.oanor.com/ens-api

Get an API key Try in playground → Contact provider

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

/api/ens-api/openapi.json

/api/ens-api/llms.txt

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

API health

healthy

Uptime: 100.00%; Server probes · 24h
Avg latency: 485 ms; Server probes · 24h
Subscribers: 4,110; active
Total calls: 20; last 7 days

Full status page → · 12 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

9,500 calls / month
3 requests / second
Hard cap (429 above quota, no overage)
9,500 calls/month
3 req/sec
Resolve, reverse & records
No credit card

Starter

€8.50 /month

120,000 calls / month
8 requests / second
Hard cap (429 above quota, no overage)
120,000 calls/month
8 req/sec
Address ⇄ name, avatar & social records
Email support

Pro

€22.50 /month

600,000 calls / month
15 requests / second
Hard cap (429 above quota, no overage)
600,000 calls/month
15 req/sec
Wallet, dapp & explorer pipelines
Priority support

Scale

€54.00 /month

3,000,000 calls / month
30 requests / second
Hard cap (429 above quota, no overage)
3,000,000 calls/month
30 req/sec
Web3-naming scale
Dedicated SLA

Built by

PremiumApi

Related APIs

Other APIs with overlapping tags.

Crypto Treasury API

Live data on the public companies that hold Bitcoin and Ethereum on their balance sheets, from the public CoinGecko feed. Rank every public company by how much of the coin it holds, with current and entry value, average entry price, country and share of total supply; get the aggregate corporate holdings, USD value and market-cap dominance; find a specific holder by name, ticker or country; and compare Bitcoin and Ethereum corporate treasuries side by side. The corporate crypto-treasury layer — distinct from price and exchange feeds: it answers who holds how much, and what they paid. Live, with a short 60-second upstream cache.

api.oanor.com/cryptotreasury-api

Across Bridge API

Live cross-chain bridge data from Across, one of the largest intent-based bridges, which moves USDC, ETH, WBTC and other assets between Ethereum and its rollups (Arbitrum, Base, Optimism, Polygon, zkSync, Linea, Blast, Scroll and more) using a relayer network and a single unified liquidity pool. The quote endpoint prices a bridge transfer — the relayer capital fee, gas fee, LP fee, total fee, the amount received and the estimated fill time. The routes endpoint lists every supported bridge route (origin chain, destination chain, token). The limits endpoint returns the min and max bridgeable amount for a route. The chains endpoint lists supported chains. Read live from Across, nothing stored. This is Across's own cross-chain bridge fee, route and fill-time layer — distinct from DEX, lending, staking and price feeds.

api.oanor.com/across-api

Balancer API

Live data from Balancer, a leading multi-chain decentralised AMM whose programmable liquidity pools (weighted, stable, gyro, boosted) power swaps and yield across Ethereum, Arbitrum, Base, Polygon, Avalanche, Gnosis, Optimism and more. The pools endpoint returns the top pools by TVL on a chain — each with its type, total liquidity, 24h volume and fees, total APR (with a yield/swap/staking breakdown) and constituent tokens. The pool endpoint returns one pool's full state by id, including swap and holder counts and the full APR breakdown. The token endpoint returns a token's live Balancer price plus its symbol, name and decimals. The tokens endpoint searches the token registry by symbol or name. Read live from Balancer, nothing stored. This is Balancer's own programmable-pool AMM, TVL/volume/APR and token-pricing layer — distinct from constant-product DEX feeds, Curve's stableswap and order-book or perps DEX feeds.

api.oanor.com/balancer-api

Rocket Pool Liquid Staking API

Live data from Rocket Pool — the leading decentralised Ethereum liquid-staking protocol, where a permissionless network of node operators run validators and users hold rETH, a token that accrues staking rewards (its ETH value rises, no rebase). Served from Rocket Pool's public API as clean JSON, no cache. Read the protocol staking state (ETH staked through Rocket Pool, staking minipools, deposit-pool balance and rETH collateral, plus the Ethereum-wide total staked and validator count); the rETH yield (staking APR, the underlying beacon-chain APR and the ETH price); the RPL token (price in USD and ETH, total staked and supply); and the node-operator counts and commission. Read live from Rocket Pool, nothing cached. This is Rocket Pool's own liquid-staking, rETH-yield, RPL and node-operator layer — distinct from on-chain explorers, DEX/lending/perps feeds and generic price APIs.

api.oanor.com/rocketpool-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for ENS Resolver API?

Sign up for free at oanor.com, generate an API key from the developer dashboard, and call ENS Resolver API with the x-oanor-key header. No credit card needed for the free tier.

What's the rate limit for ENS Resolver 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 ENS Resolver API cost?

ENS Resolver API has a free tier with 100 calls / month. Paid plans start at €8.50 / 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 ENS Resolver API GDPR-compliant?

All requests to ENS Resolver 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.

ENS 3

Meta 1

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

GET /v1/records

Profile text records for a name

Playground

Parameters

Custom headers

Language: Client:

GET /v1/resolve

Resolve a .eth name

Playground

Parameters

Custom headers

Language: Client:

GET /v1/reverse

Reverse-resolve an address

Playground

Parameters

Custom headers

Language: Client:

GET /v1/meta

Spec

Playground

Custom headers

Language: Client:

Code snippets

curl https://api.oanor.com/ens-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."

const res = await fetch("https://api.oanor.com/ens-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();

$ch = curl_init("https://api.oanor.com/ens-api/SOME_PATH");
curl_setopt($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/ens-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

Ratings

No reviews yet.

Discussion

Ask questions, share usage tips, get answers from the provider and other developers. Public — anyone can read.

New thread

📌 Pinned 🔒 Locked

· ·

🔒 This thread is locked — no new replies.

No threads yet — start the discussion.

Support

Private 1:1 support with the provider — billing questions, integration issues, account problems. Only you and the provider team can see these threads.

Open new ticket

Describe what you need help with. The provider team gets an email and replies on the ticket page.

No tickets yet for this API.

Subscription active — calls can start immediately.

Send your first request —

Subscription active — copy a snippet and fire off your first call.

Pick a key

Plaintext is shown once at creation — use the prefix as a reminder.

ENS Resolver API

API health

Pricing

Built by

Related APIs

Crypto Treasury API

Across Bridge API

Balancer API

Rocket Pool Liquid Staking API

Frequently asked questions

Parameters

Parameters

Parameters

Code snippets

Ratings

Discussion

New thread

📌 🔒

Support

Open new ticket

Your cookie choices