# Dotlake API - Now Publicly Available

**URL:** <https://forum.polkadot.network/t/dotlake-api-now-publicly-available/16905>\
**Category:** Ecosystem\
**Tags:** ux\
**Created:** [February 2, 2026, 10:45pm UTC](https://forum.polkadot.network/t/dotlake-api-now-publicly-available/16905 "2026-02-02T22:45:47Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![rogerjbos](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.polkadot.network/rogerjbos/32/11232_2.png) [@rogerjbos](https://forum.polkadot.network/u/rogerjbos)\
**Post date:** [February 2, 2026, 10:45pm UTC](https://forum.polkadot.network/t/dotlake-api-now-publicly-available/16905/1 "2026-02-02T22:45:48Z")

</div>

# Introducing the Dotlake API: Polkadot Ecosystem Data at Your Fingertips

## Overview

The Parity Data Team is excited to announce the **Dotlake API** — a RESTful API providing programmatic access to comprehensive blockchain metrics across the Polkadot, Kusama, Westend, Paseo, ans Solo (Substrate) ecosystems.

**Production URL:** [https://api.data.parity.io](https://api.data.parity.io)  
**Interactive Documentation:** [Dotlake API - Swagger UI](https://api.data.parity.io/docs)

Whether you’re building dashboards, conducting research, or developing analytics tools, Dotlake provides the data infrastructure you need without the complexity of running your own indexers.

## The Problem

Accessing reliable, aggregated blockchain data in the Polkadot ecosystem has traditionally required:

- Running and maintaining your own indexer infrastructure
- Writing complex queries against raw blockchain data
- Aggregating data across multiple parachains manually
- Significant DevOps overhead for data pipelines

While tools like Subscan and SubQuery serve specific use cases well, there’s been a gap for developers who need **pre-aggregated, time-series metrics** via a simple REST API.

## What Dotlake Provides

### Daily Metrics

| Endpoint | Description |
| --- | --- |
| `/api/daily-uptime` | Chain uptime percentages (1-day, 7-day, 30-day windows) |
| `/api/daily-tps` | Transactions per second |
| `/api/daily-fees` | Transaction fees in native tokens and USD |
| `/api/daily-summary` | 25+ comprehensive daily indicators |
| `/api/daily-staking-participation` | Validators, nominators, pools, and staked amounts |
| `/api/daily-staking-rewards` | Per-account staking rewards in native tokens and USD |
| `/api/daily-opengov-referenda-results` | Referendum outcomes, support levels, and voting data |
| `/api/daily-usdc` / `/api/daily-usdt` | Stablecoin holdings across chains |

### Monthly Metrics

| Endpoint | Description |
| --- | --- |
| `/api/monthly-active-validators` | Validator and nominator counts |
| `/api/monthly-percent-staked` | DOT issuance and staking ratios |
| `/api/monthly-opengov-participation` | Voter counts by type |
| `/api/monthly-opengov-tokens` | DOT voting volumes |
| `/api/monthly-treasury-assets` | Treasury holdings in native tokens and USD |
| `/api/monthly-treasury-balances` | Treasury as percentage of total issuance |
| `/api/monthly-unique-accounts` | Active account metrics |

### Coverage

- **Relay Chains:** Polkadot, Kusama, Westend, Paseo
- **Parachains:** Parachains and Solo-chains with data dating back to genesis
- **Data Freshness:** Daily updates

## Authentication

Dotlake uses a **wallet-based registration** system powered by SIWS (Sign-In With Substrate):

1. Visit the registration page and connect your Polkadot wallet
2. Click on `Request API Key` to get your wallet on the allowlist
3. Once done, you can immediately `Sign in with Wallet` and cretae your API key
4. Use the key as a Bearer token: `Authorization: Bearer <your-api-key>`

No email verification delays. Pure Web3 authentication (h/t to @shawn.coe:parity.io for SIWS).  
We will monitor API usage and revoke acccess to anyone abusing the server. We can add verification if we need to, but for now it is totally open.

## Example Usage

```bash
# Query daily staking participation for Polkadot
curl -X GET "https://api.data.parity.io/api/daily-staking-participation" \
  -G \
  --data-urlencode "relay_chain=polkadot" \
  --data-urlencode "start_date=2025-01-01" \
  --data-urlencode "end_date=2025-01-15" \
  -H "Authorization: Bearer $API_KEY"

```

```json
{
  "data": [
    {
      "date": "2025-01-15",
      "relay_chain": "polkadot",
      "chain": "polkadot",
      "number_of_validators": 500,
      "number_of_nominators": 28450,
      "number_of_pools": 215,
      "staked_DOT": 725000000.5,
      "percentage_staked": 58.2
    }
  ]
}

```

## Use Cases

- **Dashboard Builders:** Power real-time ecosystem health dashboards
- **Researchers:** Analyze governance participation trends over time
- **Treasury Analysts:** Track treasury balances and spending patterns
- **Staking Services:** Monitor validator performance and reward distributions
- **DeFi Protocols:** Access stablecoin supply data across chains

## Technical Details

- **Backend:** FastAPI (Python) with ClickHouse for high-performance analytics
- **Frontend:** Vite + vanilla JavaScript with Polkadot wallet integration
- **Authentication:** SIWS (Sign-In With Substrate) for wallet-based auth
- **Rate Limiting:** Fair usage policies apply

## Getting Started

1. **Get an API Key:** Visit [https://api.data.parity.io](https://api.data.parity.io) and connect your wallet
2. **Explore the Docs:** Interactive Swagger documentation at [`/docs`](https://api.data.parity.io/docs)
3. **Start Querying:** Use any HTTP client to access the endpoints

## Feedback Welcome

We’re actively developing Dotlake and would love your input:

- What additional metrics would be valuable?

Drop your feedback in this thread or reach out to the Parity Data Team.