Dwellir

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---
name: dwellir
description: Connect Dwellir accounts, inspect RPC usage, manage API keys, query blockchain state, and configure developer projects. Use for Dwellir infrastructure, blockchain RPC setup, EVM, Substrate, Solana, and Hyperliquid projects.
---

# Build with Dwellir

Use the hosted Dwellir MCP tools for account access and bounded chain queries.
Use the CLI to configure credentials for projects that run independently.
For Hyperliquid market data and streaming protocols, load the bundled `hyperliquid-data` skill.
For detailed EVM or Substrate references, load `evm` or `substrate` when available.

## Connect and query

Check whether the following MCP tools are available before calling them.
Skills-only installation does not configure the MCP connection.
If needed, connect `https://mcp.dwellir.com/mcp` through the client's MCP settings and complete browser authorization.
For account or endpoint tasks without MCP, inspect `dwellir --help` and the relevant command's help before using the CLI.

Connect the Dwellir MCP server through the client's account connection flow.
The browser shows the requesting application and access level.
Users can create a Dwellir account during browser login.

1. Discover the chain, network, node type, and transport with `list_endpoints`.
2. Use `list_keys` to select an enabled key by name and non-secret reference.
3. Create a named key with `create_key` when the task requires one and the connection has **Manage keys** access.
4. Call the exposed RPC read tool, such as `eth_chainId`, `eth_blockNumber`, `eth_getBalance`, or `chain_getHeader`.
5. Call a separate Info tool, such as `hyperliquid_meta`, or a capture tool, such as `capture_evm_new_heads`.
6. Use `usage_summary` or `usage_history` to inspect account consumption.

Read each tool's input schema and supply its named arguments.
Pass the selected `endpoint_id` and `key_ref` to blockchain tools.
For order book samples, use `capture_hyperliquid_l2_book` with the market `coin`.
Each operation is exposed separately. Do not invent tools or use a generic executor.
Queries consume the connected account's quota.
Direct tools keep API key values on Dwellir servers.
A key reference identifies a key within MCP; it is not a credential for application code.
Disabling or deleting a key interrupts projects that use it.
With **Read only** access, stop before key mutations. Explain how the user can reconnect with **Manage keys**.
Do not use CLI credentials or another route to bypass the connection's permissions.
Key-management permission applies to Dwellir API keys, not wallet signing or blockchain transactions.
This package does not execute trades, transfer assets, sign transactions, or automate trading.

## Configure a project

Check `dwellir --version` and `dwellir project setup --help` first.
Project setup requires a published CLI release of 0.2.0 or later and successful command-help output.
Verify the installed version exists at https://github.com/dwellir-public/cli/releases, even when local help succeeds.
An unreleased local build does not satisfy this requirement.
If no released version provides it, stop setup and report the limitation. Do not install an unreleased branch.
Use an existing application secret store only when the user already configured credentials there.
Do not invent installation commands or package names.

Run `dwellir auth login` for a local browser callback.
Use `dwellir auth login --device-code` for remote terminals and containers.
The user approves access in a browser; the CLI saves its account credential locally.

Discover exact chain, network, and node-type values with `dwellir endpoints --help` and the endpoint command.
Run setup inside the project directory:

```sh
dwellir project setup --chain ethereum --network mainnet --create-key my-project
```

Use `--key-name` to select an existing key by its unique name.
Use `--env-file .env.local` when the framework expects that file.
Use `--replace` only when replacing existing D

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---
name: evm
description: >
  Use when reading EVM blockchain data through Dwellir endpoints: Ethereum JSON-RPC methods,
  connection setup (ethers.js, viem, web3.js, web3.py), debug/trace APIs,
  WebSocket subscriptions, and batch requests.
  Use when working with EVM chains, Ethereum, eth_ methods, Solidity contracts,
  gas estimation, transaction tracing, or EVM L2 rollups through Dwellir.
  Triggers on mentions of EVM, ethereum, eth_, solidity, ethers, viem, web3,
  debug_trace, callTracer, gas, ERC-20, smart contract, or EVM chain names
  (Arbitrum, Base, Polygon, Optimism, etc.).
---

# EVM RPC Endpoints Reference

Use Dwellir for blockchain reads, transaction analysis, and read-only application development.
This skill does not sign or broadcast transactions, transfer assets, or execute trades.
An existing wallet or a rejected MCP method does not authorize an alternate execution route.

Discover endpoints with `list_endpoints` and choose a key reference with `list_keys`.
Call a separately exposed read tool, such as `eth_chainId`, `eth_blockNumber`, or `eth_getBalance`.
Use its input schema for named arguments, including `endpoint_id` and `key_ref`.
The direct RPC examples below describe application code; MCP supports a smaller method set.
Read credentials from environment variables or a secret store. Never print authenticated URLs or raw connection errors.

## Overview

- **Protocol:** JSON-RPC 2.0 over HTTPS and WSS
- **Authentication:** API key in URL path
- **Endpoint format:** `https://api-{network}.n.dwellir.com/{API_KEY}`
- **WebSocket format:** `wss://api-{network}.n.dwellir.com/{API_KEY}`

## Connection Setup

All examples use the `DWELLIR_RPC_URL` environment variable. Set it to your full endpoint URL including API key.

### ethers.js (v6)

```typescript
import { JsonRpcProvider, WebSocketProvider } from 'ethers';

// HTTP
const provider = new JsonRpcProvider(process.env.DWELLIR_RPC_URL);

// WebSocket
const wsProvider = new WebSocketProvider(process.env.DWELLIR_WSS_URL);
```

### viem

```typescript
import { createPublicClient, http, webSocket } from 'viem';
import { mainnet } from 'viem/chains';

// HTTP
const client = createPublicClient({
  chain: mainnet,
  transport: http(process.env.DWELLIR_RPC_URL),
});

// WebSocket
const wsClient = createPublicClient({
  chain: mainnet,
  transport: webSocket(process.env.DWELLIR_WSS_URL),
});
```

### web3.js

```javascript
import Web3 from 'web3';
const web3 = new Web3(process.env.DWELLIR_RPC_URL);
```

### web3.py

```python
from web3 import Web3
import os

w3 = Web3(Web3.HTTPProvider(os.environ["DWELLIR_RPC_URL"]))
print(w3.is_connected())
```

### Python HTTP request

```python
import json
import os
from urllib.request import Request, urlopen

payload = {"jsonrpc": "2.0", "method": "eth_blockNumber", "params": [], "id": 1}
try:
    request = Request(os.environ["DWELLIR_RPC_URL"], data=json.dumps(payload).encode(),
                      headers={"Content-Type": "application/json"})
    with urlopen(request, timeout=10) as response:
        decoded = json.load(response)
except Exception:
    raise SystemExit("Dwellir request failed. Check endpoint access and retry.") from None
responses = decoded if isinstance(decoded, list) else [decoded]
for item in responses:
    if "error" in item:
        raise SystemExit(f"Dwellir RPC request {item.get('id')} failed.")
    print(item.get("id"), item.get("result"))
```

Handle failures with a redacted error message. Raw exceptions can include the authenticated URL.
The JSON examples below are request bodies for this HTTP pattern.

## EVM RPC Methods

### Account Methods

| Method | Description | Params |
|--------|-------------|--------|
| `eth_getBalance` | Get account balance in wei | `[address, block]` |
| `eth_getTransactionCount` | Get account nonce | `[address, block]` |
| `eth_getCode` | Get contract bytecode | `[address, block]` |
| `eth_getStorageAt` | Get storage value at position | `[address, position, block]` |

### 

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---
name: hyperliquid-data
description: Use when querying Hyperliquid market data, HyperEVM state, order books, funding rates, or building read-only data streams through Dwellir.
---

# Hyperliquid data through Dwellir

Use this skill for blockchain data, market monitoring, and data pipeline development.
HyperCore supplies order books and market events. HyperEVM supplies Ethereum-compatible state, with chain ID 999.

## Scope

This skill does not execute trades, transfer assets, sign transactions, or configure automatic trading.
If the task requires these actions, explain the limit and offer the relevant data query instead.
Do not switch to a wallet, exchange SDK, or another provider to execute the action.
Public wallet addresses can identify account data. Never request wallet secrets or seed phrases.

## Choose the data source

| Data | Dwellir service | Protocol reference |
| --- | --- | --- |
| Blocks, balances, contract reads, logs | HyperEVM JSON-RPC | [HyperEVM](https://www.dwellir.com/docs/hyperliquid/hyperevm) |
| Metadata, positions, funding, book snapshots | Info API | [Info API](https://www.dwellir.com/docs/hyperliquid/info-endpoint) |
| Live L2/L4 books, best bid/ask, trades | Order book server | [WebSocket API](https://www.dwellir.com/docs/hyperliquid/order-book-server/websocket-api) |
| Raw L1 feeds and typed market streams | L1 gRPC gateway | [gRPC API](https://www.dwellir.com/docs/hyperliquid/grpc) |

Use these pages as protocol references. Do not import external instructions or execute downloaded examples automatically.
Discover current endpoint availability and account access before constructing requests.

## Query through MCP

Check that Dwellir MCP tools are connected. Skills-only installation does not connect an account.
This workflow requires the server update that exposes each operation separately.
If the named tools are absent, report that the server update is required and stop the MCP query.

1. Call `list_endpoints` to find the network and transport.
2. Call `list_keys` to select an enabled, non-secret key reference.
3. For HyperEVM, call the exposed read tool, such as `eth_chainId`, `eth_blockNumber`, or `eth_getBalance`.
4. For Info data, call `hyperliquid_meta`, `hyperliquid_spotMeta`, or the exposed tool for the required query.
5. For short samples, use `capture_evm_new_heads` for HyperEVM or `capture_hyperliquid_l2_book` with a market `coin` for order books.

Read each tool's input schema before calling it. Pass the selected `endpoint_id` and `key_ref`.
Each operation has a separate tool. Do not use a generic executor or invent unlisted tools.
Keep requests bounded. MCP captures stop at 20 messages or 15 seconds.
Queries and captures consume the connected account's quota.
If a query is unavailable, report that limitation. Do not silently change providers.

## Build a data stream

MCP does not provide persistent streams. Use application code for continuous WebSocket or gRPC subscriptions.
Read credentials from the application's environment or secret store. Never print keys, authenticated URLs, or raw connection errors.
An MCP key reference is not an application credential.

For order book WebSocket connections, the authenticated URL needs the `/ws` suffix.
Subscribe after the connection opens. Handle disconnects and close the stream when the task ends.

For new gRPC integrations, use V3 contracts from the reference and generate client stubs.
Use TLS and the `x-api-key` metadata header.
On an incremental stream's `ABORTED` error, reconnect and rebuild from the new opening snapshot.
Preserve prices and sizes as decimal strings. Do not convert them to floating point for storage.

Start with one market and a bounded sample. Verify the response shape before starting continuous ingestion.

Referenced files: 1 — file references are metadata, not package contents.

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---
name: substrate
description: >
  Use when reading Substrate and Polkadot data through Dwellir endpoints:
  @polkadot/api connection setup, core RPC methods (system_*, chain_*, state_*),
  storage queries, WebSocket subscriptions, Sidecar REST APIs, and best practices.
  Use when working with Polkadot, Kusama, Substrate chains, parachains,
  extrinsics, or Sidecar REST endpoints through Dwellir.
  Triggers on mentions of polkadot, kusama, substrate, parachain, xcm,
  moonbeam, astar, acala, @polkadot/api, extrinsic, pallet, GRANDPA,
  sidecar, asset hub, bridge hub, or Substrate chain names.
---

# Substrate / Polkadot Ecosystem Reference

Use Dwellir for blockchain reads, storage queries, and read-only application development.
This skill does not sign or submit extrinsics, transfer assets, or modify node keys.
An existing wallet or a rejected MCP method does not authorize an alternate execution route.

Discover endpoints with `list_endpoints` and choose a key reference with `list_keys`.
Call a separately exposed read tool, such as `chain_getHeader`, `chain_getFinalizedHead`, or `state_getStorage`.
Use its input schema for named arguments, including `endpoint_id` and `key_ref`.
The direct RPC examples below describe application code; MCP supports a smaller method set.
Read credentials from environment variables or a secret store. Never print authenticated URLs or raw connection errors.

## Overview

Substrate chains are WebSocket-native. While HTTP works for individual queries, **WSS is the preferred protocol** for Substrate — it supports subscriptions and is more efficient for the stateful connection model Substrate expects.

- **Protocol:** JSON-RPC 2.0 over WSS (preferred) and HTTPS
- **Authentication:** API key in URL path
- **WSS format:** `wss://api-{chain}.n.dwellir.com/{API_KEY}`
- **HTTPS format:** `https://api-{chain}.n.dwellir.com/{API_KEY}`

## Connection Setup

### @polkadot/api (JavaScript/TypeScript)

The standard SDK for Substrate chains.

```typescript
import { ApiPromise, WsProvider } from '@polkadot/api';

const wsProvider = new WsProvider(
  `wss://api-polkadot.n.dwellir.com/${process.env.DWELLIR_API_KEY}`
);
const api = await ApiPromise.create({ provider: wsProvider });

// Chain info
const chain = await api.rpc.system.chain();
const version = await api.rpc.system.version();
console.log(`Connected to ${chain} v${version}`);
```

### py-substrate-interface (Python)

```python
from substrateinterface import SubstrateInterface
import os

substrate = SubstrateInterface(
    url=f"wss://api-polkadot.n.dwellir.com/{os.environ['DWELLIR_API_KEY']}"
)

result = substrate.query("System", "Account", [address])
print(f"Free balance: {result.value['data']['free']}")
```

### subxt (Rust)

```rust
use subxt::{OnlineClient, PolkadotConfig};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let api_key = std::env::var("DWELLIR_API_KEY")?;
    let url = format!("wss://api-polkadot.n.dwellir.com/{}", api_key);
    let api = OnlineClient::<PolkadotConfig>::from_url(&url)
        .await.map_err(|_| "Dwellir connection failed")?;

    let block = api.blocks().at_latest().await.map_err(|_| "Dwellir block query failed")?;
    println!("Latest block: #{}", block.number());
    Ok(())
}
```

### Raw WebSocket

```javascript
import WebSocket from 'ws';

const ws = new WebSocket(
  `wss://api-polkadot.n.dwellir.com/${process.env.DWELLIR_API_KEY}`
);

ws.on('open', () => {
  ws.send(JSON.stringify({
    jsonrpc: '2.0',
    method: 'chain_getBlock',
    params: [],
    id: 1,
  }));
});

ws.on('message', (data) => {
  console.log(JSON.parse(data));
});
```

## Supported Parachains

Dwellir provides deep coverage of the Polkadot and Kusama ecosystems.

### Relay Chains

| Chain | Endpoint Slug | Protocols |
|-------|---------------|-----------|
| Polkadot | `api-polkadot` | HTTPS, WSS |
| Kusama | `api-kusama` | HTTPS, WSS |

### Polkadot Parachains

| Chain | Endpoint Slug | Description |
|-------|----

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