# Sei Network On-Chain API
> Live on-chain data for Sei Network (the parallelized EVM + Cosmos L1, chain pacific-1) with no key: staking economics (bonded vs unbonded SEI, bonded ratio, staking parameters), the active validator set (moniker, voting power, commission, status), the total SEI supply, the latest governance proposals, and the latest block.

## 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/sei-api/..."
```

## Pricing
- **Free** (Free) — 10,800 calls/Mo, 2 req/s
- **Basic** ($21/Mo) — 242,000 calls/Mo, 10 req/s
- **Pro** ($58/Mo) — 1,330,000 calls/Mo, 20 req/s
- **Scale** ($142/Mo) — 7,150,000 calls/Mo, 50 req/s

## Endpoints

### Staking

#### `GET /v1/staking` — Staking economics & parameters

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

**Response:**
```json
{
    "data": {
        "note": "The Sei staking economics — bonded vs unbonded SEI, the bonded ratio, and the chain's staking parameters (unbonding period, max validators, minimum commission). No parameters.",
        "params": {
            "bond_denom": "usei",
            "max_validators": 40,
            "min_commission_rate": 0.05,
            "unbonding_time_seconds": 1814400
        },
        "source": "Sei Network (pacific-1) LCD",
        "bonded_sei": 3905048314.1,
        "not_bonded_sei": 586226690.45,
        "bonded_ratio_percent": 86.95
    },
    "meta": {
        "timestamp": "2026-06-15T02:10:41.108Z",
        "request_id": "2ee90d8c-0424-43b2-9a8e-c405e6701753"
    },
    "status": "ok",
    "message": "Staking retrieved successfully",
    "success": true
}
```

#### `GET /v1/validators` — Active validator set ranked by voting power

**Parameters:**
- `limit` (query, optional, string) — Results 1-100 Example: `25`

**Example:**
```bash
curl -H "x-oanor-key: $KEY" \
  "https://api.oanor.com/sei-api/v1/validators?limit=25"
```

**Response:**
```json
{
    "data": {
        "note": "The active Sei validator set, ranked by voting power — each validator's moniker, website, voting power (in SEI), commission rate and status. Pass limit (1-100, default 25).",
        "count": 25,
        "source": "Sei Network (pacific-1) LCD",
        "validators": [
            {
                "jailed": false,
                "status": "BOND_STATUS_BONDED",
                "moniker": " RHINO 🦏",
                "website": "https://rhinostake.com",
                "commission_rate": 0.05,
                "operator_address": "seivaloper146m089lq8mkqw6w0mmlhxz6247g2taha89at74",
                "voting_power_sei": 213288253.94,
                "max_commission_rate": 0.2
            },
            {
                "jailed": false,
                "status": "BOND_STATUS_BONDED",
                "moniker": "Everstake",
                "website": "https://everstake.one",
                "commission_rate": 0.05,
                "operator_address": "seivaloper1ummny4p645xraxc4m7nphf7vxawfzt3p5hn47t",
                "voting_power_sei": 208857484.43,
                "max_commission_rate": 0.2
            },
            {
                "jailed": false,
                "status": "BOND_STATUS_BONDED",
                "moniker": "STAKEME",
                "website": "https://stakeme.pro",
                "commission_rate": 0.05,
                "operator_address": "seivaloper15xgfk9cnt56xjvqvetjvg3wlqlslfnqfc03dwk",
                "voting_power_
…(truncated, see openapi.json for full schema)
```

### Governance

#### `GET /v1/governance` — Latest governance proposals

**Parameters:**
- `limit` (query, optional, string) — Results 1-50 Example: `10`

**Example:**
```bash
curl -H "x-oanor-key: $KEY" \
  "https://api.oanor.com/sei-api/v1/governance?limit=10"
```

**Response:**
```json
{
    "data": {
        "note": "The latest Sei on-chain governance proposals (most recent first) — each proposal's id, title, type, status and voting window. Pass limit (1-50, default 10).",
        "count": 10,
        "source": "Sei Network (pacific-1) LCD",
        "proposals": [
            {
                "type": "SoftwareUpgradeProposal",
                "title": "v6.5",
                "status": "PROPOSAL_STATUS_PASSED",
                "proposal_id": "117",
                "submit_time": "2026-05-15T20:22:12.656034334Z",
                "voting_end_time": "2026-05-18T20:22:12.656034334Z"
            },
            {
                "type": "ParameterChangeProposal",
                "title": "Disable IBC Inbound",
                "status": "PROPOSAL_STATUS_PASSED",
                "proposal_id": "116",
                "submit_time": "2026-05-09T13:25:00.551403663Z",
                "voting_end_time": "2026-05-12T13:26:44.000944635Z"
            },
            {
                "type": "ParameterChangeProposal",
                "title": "Disable CosmWasm Uploads and Instantiation",
                "status": "PROPOSAL_STATUS_PASSED",
                "proposal_id": "115",
                "submit_time": "2026-04-30T15:10:34.282242841Z",
                "voting_end_time": "2026-05-01T15:10:34.282242841Z"
            },
            {
                "type": "SoftwareUpgradeProposal",
                "title": "v6.4.0",
                "status": "PROPOSAL_STATUS_PASSED",

…(truncated, see openapi.json for full schema)
```

### Supply

#### `GET /v1/supply` — Total SEI supply

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

**Response:**
```json
{
    "data": {
        "note": "The total circulating supply of SEI (the native token of Sei Network), in both SEI and the usei micro-denomination. No parameters.",
        "denom": "SEI",
        "source": "Sei Network (pacific-1) LCD",
        "micro_denom": "usei",
        "total_supply_sei": 9175823143.81,
        "total_supply_usei": "9175823143814146"
    },
    "meta": {
        "timestamp": "2026-06-15T02:10:41.608Z",
        "request_id": "562dbd8e-2f3a-4bff-907e-d5d882db8918"
    },
    "status": "ok",
    "message": "Supply retrieved successfully",
    "success": true
}
```

### Chain

#### `GET /v1/block` — Latest block

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

**Response:**
```json
{
    "data": {
        "note": "The latest finalized Sei block — height, timestamp, chain id, proposer and transaction count. No parameters.",
        "time": "2026-06-15T02:10:41.371472397Z",
        "round": 0,
        "height": 213842874,
        "source": "Sei Network (pacific-1) LCD",
        "num_txs": 1,
        "chain_id": "pacific-1",
        "proposer_address": "CrI4lhq9vHyZxmk3ZdspBCDi7Yc="
    },
    "meta": {
        "timestamp": "2026-06-15T02:10:41.703Z",
        "request_id": "383eaaef-ae4a-40a9-b6b3-585ac0561a42"
    },
    "status": "ok",
    "message": "Block retrieved successfully",
    "success": true
}
```

### Meta

#### `GET /v1/meta` — Service metadata & endpoint catalog

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

**Response:**
```json
{
    "data": {
        "sample": {
            "latest_height": 213842874
        },
        "source": "Sei public Cosmos REST / LCD nodes (rest.sei-apis.com and mirrors), keyless",
        "service": "sei-api",
        "endpoints": {
            "GET /v1/meta": "This document.",
            "GET /v1/block": "Latest block.",
            "GET /v1/supply": "Total SEI supply.",
            "GET /v1/staking": "Staking economics & parameters.",
            "GET /v1/governance": "Latest governance proposals (limit).",
            "GET /v1/validators": "Active validator set (limit)."
        },
        "description": "Live on-chain data for Sei Network (the parallelized EVM + Cosmos L1, chain pacific-1) with no key: staking economics (bonded vs unbonded SEI, bonded ratio, staking parameters), the active validator set (moniker, voting power, commission, status), the total SEI supply, the latest governance proposals, and the latest block. The Sei-on-chain / staking / governance layer for explorers, staking dashboards and research. Distinct from other chain readers — the Sei (pacific-1) network. Live, short cache only.",
        "upstream_status": "ok"
    },
    "meta": {
        "timestamp": "2026-06-15T02:10:41.818Z",
        "request_id": "cf08b093-b79e-4210-a7a3-bf9d504d485d"
    },
    "status": "ok",
    "message": "Meta",
    "success": true
}
```


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