# Superseed API
> Live Superseed on-chain data via Blockscout. Superseed is an Ethereum L2 built on the OP Stack and part of the Optimism Superchain; gas and balances are in ETH. Network stats, gas prices, latest blocks, a block by height or hash, address detail with ETH balance, a transaction by hash, ERC-20 token metadata and a universal search across addresses, tokens, blocks and transactions. Real data, no key.

## Authentication
All requests require your oanor API key in the `x-oanor-key` header. Get one at https://www.oanor.com/developer/keys.

```bash
curl -H "x-oanor-key: oanor_live_…" "https://api.oanor.com/superseed-api/..."
```

## Pricing
- **Free** (Free) — 1,550 calls/Mo, 1 req/s
- **Basic** ($12/Mo) — 71,000 calls/Mo, 10 req/s
- **Pro** ($37/Mo) — 495,000 calls/Mo, 20 req/s
- **Mega** ($116/Mo) — 2,480,000 calls/Mo, 50 req/s

## Endpoints

### Network

#### `GET /v1/gas` — Current gas prices

**Example:**
```bash
curl -H "x-oanor-key: $KEY" \
  "https://api.oanor.com/superseed-api/v1/gas"
```

**Response:**
```json
{
    "data": {
        "fast": 0.01,
        "slow": 0.01,
        "unit": "gwei",
        "average": 0.01,
        "gas_used_today": "2319830414"
    },
    "meta": {
        "timestamp": "2026-06-08T09:51:17.664Z",
        "request_id": "c1dbe608-4f42-469e-bf10-8f70e3ea045e"
    },
    "status": "ok",
    "message": "Gas retrieved successfully",
    "success": true
}
```

#### `GET /v1/stats` — Network statistics

**Example:**
```bash
curl -H "x-oanor-key: $KEY" \
  "https://api.oanor.com/superseed-api/v1/stats"
```

**Response:**
```json
{
    "data": {
        "tvl_usd": null,
        "gas_prices": {
            "fast": 0.01,
            "slow": 0.01,
            "average": 0.01
        },
        "total_blocks": 27365919,
        "coin_price_usd": null,
        "gas_used_today": "2319830414",
        "market_cap_usd": 0,
        "total_addresses": "68464",
        "total_transactions": "29110483",
        "transactions_today": "44583",
        "network_utilization_percent": 0.17581526666666666
    },
    "meta": {
        "timestamp": "2026-06-08T09:51:17.996Z",
        "request_id": "8a862290-aa50-40ed-a7dd-8fb144f41861"
    },
    "status": "ok",
    "message": "Stats retrieved successfully",
    "success": true
}
```

### Blocks

#### `GET /v1/block` — A block by height or hash

**Parameters:**
- `height` (query, optional, string) — Block height Example: `27352559`
- `hash` (query, optional, string) — Block hash

**Example:**
```bash
curl -H "x-oanor-key: $KEY" \
  "https://api.oanor.com/superseed-api/v1/block?height=27352559"
```

**Response:**
```json
{
    "data": {
        "block": {
            "hash": "0x13b81fb6d77b6daca548dd75fbebf93fc2be9c9aee250c0845e61ab339c554e6",
            "size": 907,
            "miner": "0x4200000000000000000000000000000000000011",
            "height": 27352559,
            "gas_used": 46230,
            "tx_count": 1,
            "gas_limit": 30000000,
            "timestamp": "2026-06-08T02:13:21.000000Z",
            "burnt_fees": "11649960",
            "difficulty": "0",
            "base_fee_per_gas": "252"
        }
    },
    "meta": {
        "timestamp": "2026-06-08T09:51:18.327Z",
        "request_id": "9be489d5-43b5-4165-99d9-adb12c89e019"
    },
    "status": "ok",
    "message": "Block retrieved successfully",
    "success": true
}
```

#### `GET /v1/blocks` — Latest blocks

**Example:**
```bash
curl -H "x-oanor-key: $KEY" \
  "https://api.oanor.com/superseed-api/v1/blocks"
```

**Response:**
```json
{
    "data": {
        "count": 50,
        "blocks": [
            {
                "hash": "0x571706868fbd8bf6a306318e6a1ecdfa28b05cc70a34f81e1776f45ddb9d1956",
                "size": 907,
                "miner": "0x4200000000000000000000000000000000000011",
                "height": 27366297,
                "gas_used": 46230,
                "tx_count": 1,
                "gas_limit": 30000000,
                "timestamp": "2026-06-08T09:51:17.000000Z",
                "burnt_fees": "11649960",
                "difficulty": "0",
                "base_fee_per_gas": "252"
            },
            {
                "hash": "0x5088e2e8cc0fbcec5798c54a6e20e120a4c48f0fa4db8d5cfe7c2901db1f7227",
                "size": 907,
                "miner": "0x4200000000000000000000000000000000000011",
                "height": 27366296,
                "gas_used": 46230,
                "tx_count": 1,
                "gas_limit": 30000000,
                "timestamp": "2026-06-08T09:51:15.000000Z",
                "burnt_fees": "11649960",
                "difficulty": "0",
                "base_fee_per_gas": "252"
            },
            {
                "hash": "0x1dffc38a798035c33f54dc57da12b3658af9a5853b9ddc7cd0f7aa7a0ee568c2",
                "size": 907,
                "miner": "0x4200000000000000000000000000000000000011",
                "height": 27366295,
                "gas_used": 57418,
                "tx_count": 1,
                "gas_limit": 30000000,
        
…(truncated, see openapi.json for full schema)
```

### Accounts

#### `GET /v1/address` — Address detail with ETH balance

**Parameters:**
- `address` (query, required, string) — Address hash Example: `0xC316C8252B5F2176d0135Ebb0999E99296998F2e`

**Example:**
```bash
curl -H "x-oanor-key: $KEY" \
  "https://api.oanor.com/superseed-api/v1/address?address=0xC316C8252B5F2176d0135Ebb0999E99296998F2e"
```

**Response:**
```json
{
    "data": {
        "address": {
            "ens": null,
            "hash": "0xC316C8252B5F2176d0135Ebb0999E99296998F2e",
            "name": "USDC",
            "token": {
                "name": "USDC",
                "type": "ERC-20",
                "symbol": "USDC"
            },
            "creator": "0x172295445113a63f439A10e524c5779F470f31d9",
            "balance_eth": 0,
            "balance_wei": "0",
            "is_contract": true,
            "is_verified": true
        }
    },
    "meta": {
        "timestamp": "2026-06-08T09:51:19.663Z",
        "request_id": "472ea822-dddf-46b6-94d4-7f943563da9a"
    },
    "status": "ok",
    "message": "Address retrieved successfully",
    "success": true
}
```

### Transactions

#### `GET /v1/transaction` — A transaction by hash

**Parameters:**
- `hash` (query, required, string) — Transaction hash Example: `0xb0b4c3b9a25b3dde570556bcc93c489f45d3a0530252a9f036337df7d5e8e562`

**Example:**
```bash
curl -H "x-oanor-key: $KEY" \
  "https://api.oanor.com/superseed-api/v1/transaction?hash=0xb0b4c3b9a25b3dde570556bcc93c489f45d3a0530252a9f036337df7d5e8e562"
```

**Response:**
```json
{
    "data": {
        "transaction": {
            "to": "0x4200000000000000000000000000000000000015",
            "from": "0xDeaDDEaDDeAdDeAdDEAdDEaddeAddEAdDEAd0001",
            "hash": "0xb0b4c3b9a25b3dde570556bcc93c489f45d3a0530252a9f036337df7d5e8e562",
            "type": 126,
            "block": 27352559,
            "nonce": 27352560,
            "method": "0x3db6be2b",
            "status": "ok",
            "fee_eth": 0,
            "fee_wei": "0",
            "gas_used": 46230,
            "gas_price": "0",
            "timestamp": "2026-06-08T02:13:21.000000Z",
            "value_eth": 0,
            "value_wei": "0",
            "confirmations": 13740
        }
    },
    "meta": {
        "timestamp": "2026-06-08T09:51:20.034Z",
        "request_id": "b01c02d2-fb16-419a-901a-644900070262"
    },
    "status": "ok",
    "message": "Transaction retrieved successfully",
    "success": true
}
```

### Tokens

#### `GET /v1/token` — ERC-20 token metadata

**Parameters:**
- `address` (query, required, string) — Token contract address Example: `0xC316C8252B5F2176d0135Ebb0999E99296998F2e`

**Example:**
```bash
curl -H "x-oanor-key: $KEY" \
  "https://api.oanor.com/superseed-api/v1/token?address=0xC316C8252B5F2176d0135Ebb0999E99296998F2e"
```

**Response:**
```json
{
    "data": {
        "token": {
            "icon": null,
            "name": "USDC",
            "type": "ERC-20",
            "symbol": "USDC",
            "holders": null,
            "decimals": 6,
            "total_supply": "40399844365",
            "exchange_rate_usd": null,
            "circulating_market_cap": null
        }
    },
    "meta": {
        "timestamp": "2026-06-08T09:51:20.318Z",
        "request_id": "c28724bb-39f9-4f82-882b-9207e4ed7e01"
    },
    "status": "ok",
    "message": "Token retrieved successfully",
    "success": true
}
```

### Search

#### `GET /v1/search` — Universal on-chain search

**Parameters:**
- `q` (query, required, string) — Address, token, block or tx Example: `USD`

**Example:**
```bash
curl -H "x-oanor-key: $KEY" \
  "https://api.oanor.com/superseed-api/v1/search?q=USD"
```

**Response:**
```json
{
    "data": {
        "count": 38,
        "query": "USD",
        "results": [
            {
                "name": "USDC",
                "type": "token",
                "symbol": "USDC",
                "address": "0xC316C8252B5F2176d0135Ebb0999E99296998F2e"
            },
            {
                "name": "Tether USD",
                "type": "token",
                "symbol": "USDT",
                "address": "0xc5068BB6803ADbe5600DE5189fe27A4dAcE31170"
            },
            {
                "name": "Ionic USD Coin",
                "type": "token",
                "symbol": "ionUSDC",
                "address": "0x68F97CB792aF8b3310911A5bd79410Bc8D5e32d6"
            },
            {
                "name": "Bridged USDC",
                "type": "token",
                "symbol": "USDC.e",
                "address": "0x0459d257914d1c1b08D6Fb98Ac2fe17b02633EAD"
            },
            {
                "name": "USDC",
                "type": "token",
                "symbol": "USDC",
                "address": "0x99a38322cAF878Ef55AE4d0Eda535535eF8C7960"
            },
            {
                "name": "MellowVelodromeStrategy:SUPR-USDC-200",
                "type": "token",
                "symbol": "MVS:SUPR-USDC-200",
                "address": "0xFcD4bE2aDb8cdB01e5308Cd96ba06F5b92aebBa1"
            },
            {
                "name": "MellowVelodromeStrategy:WETH-USDC-100",
                "type": "token",
                "symbol": "MVS:
…(truncated, see openapi.json for full schema)
```

### Meta

#### `GET /v1/meta` — Service metadata

**Example:**
```bash
curl -H "x-oanor-key: $KEY" \
  "https://api.oanor.com/superseed-api/v1/meta"
```

**Response:**
```json
{
    "data": {
        "service": "superseed-api",
        "endpoints": {
            "GET /v1/gas": "Gas oracle (slow/average/fast in gwei).",
            "GET /v1/meta": "This document.",
            "GET /v1/block": "Block detail by height= or hash=.",
            "GET /v1/stats": "Network stats (blocks, txns, coin price, market cap, gas).",
            "GET /v1/token": "ERC-20 token detail by contract (address=).",
            "GET /v1/blocks": "The most recent blocks.",
            "GET /v1/search": "Search addresses, tokens, blocks & txns (q=).",
            "GET /v1/address": "Address balance, ENS & contract info (address=).",
            "GET /v1/transaction": "Transaction detail (hash=)."
        },
        "description": "Live Superseed (L2) on-chain data via Blockscout: network stats, a gas oracle (gwei), recent blocks and block detail, address balances with ENS, transaction detail, ERC-20 token detail and a universal search across addresses, tokens, blocks and transactions. Superseed is an Ethereum L2 (OP Stack, Optimism Superchain); gas and balances are in ETH. Real on-chain data, no key."
    },
    "meta": {
        "timestamp": "2026-06-08T09:51:20.931Z",
        "request_id": "48aee96d-88bf-4ff3-92c9-1a05cef79b82"
    },
    "status": "ok",
    "message": "Meta",
    "success": true
}
```


---
Marketplace page: https://www.oanor.com/api/superseed-api
OpenAPI spec: https://www.oanor.com/api/superseed-api/openapi.json