What is the Moonriver RPC URL?

The Moonriver Mainnet RPC URL with BoltRPC is https://eu.endpoints.matrixed.link/rpc/moonriver?auth=YOUR_KEY. Replace YOUR_KEY with your API key from trial.boltrpc.io. The chain ID is 1285.

Is Moonriver a testnet?

No. Moonriver is a canary network, not a testnet. It runs with real economic value and real MOVR tokens. New features deploy to Moonriver first before going live on Moonbeam. Canary networks have real financial risk.

What is the difference between Moonriver and Moonbeam?

Moonriver is the canary network for Moonbeam, running on Kusama. It receives new upgrades before Moonbeam. Both run real economic value. Teams deploy on Moonriver first to validate before going live on Moonbeam.

How do I add Moonriver to MetaMask?

Open MetaMask, go to Settings, then Networks, then Add Network, and enter: Network Name: BoltRPC Moonriver, RPC URL: https://eu.endpoints.matrixed.link/rpc/moonriver?auth=YOUR_KEY, Chain ID: 1285, Currency Symbol: MOVR, Block Explorer: https://moonriver.moonscan.io.

Kusama is Polkadot's canary network - a live production network used to test Polkadot features before they go live. Moonriver is to Moonbeam what Kusama is to Polkadot: a canary network running ahead of the main production chain.

Does BoltRPC support WebSocket for Moonriver?

Yes. BoltRPC provides WebSocket endpoints for Moonriver at wss://eu.endpoints.matrixed.link/ws/moonriver?auth=YOUR_KEY.

What is the MOVR token and how does it relate to GLMR?

MOVR is the native gas token of Moonriver (Kusama canary). GLMR is the native token of Moonbeam (Polkadot mainnet). Both pay gas on their respective chains. They are separate tokens with independent market prices serving analogous roles.

Moonriver RPC Endpoint | Flat-Rate Pricing

Quick Connect

Add this endpoint to your application to start making requests.

HTTPS

https://eu.endpoints.matrixed.link/rpc/moonriver?auth=YOUR_KEY

WebSocket

wss://eu.endpoints.matrixed.link/ws/moonriver?auth=YOUR_KEY

Replace YOUR_KEY with your API key. Get a free key →

Connect in 60 Seconds

Choose your preferred library and start building.

import { ethers } from "ethers";

const provider = new ethers.JsonRpcProvider(
  "https://eu.endpoints.matrixed.link/rpc/moonriver?auth=YOUR_KEY"
);

import { createPublicClient, http } from "viem";
import { moonriver } from "viem/chains";

const client = createPublicClient({
  chain: moonriver,
  transport: http("https://eu.endpoints.matrixed.link/rpc/moonriver?auth=YOUR_KEY"),
});

curl https://eu.endpoints.matrixed.link/rpc/moonriver?auth=YOUR_KEY \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'

Why BoltRPC for Moonriver

One provider for Moonriver and Moonbeam

Teams deploying on Moonriver before promoting to Moonbeam need consistent RPC across both environments. BoltRPC supports Moonbeam and Moonriver from one provider with one API key. Switching from Moonriver to Moonbeam for production requires changing one environment variable. The endpoint format is identical.

Canary networks run real economic activity

Moonriver is Moonbeam's canary network on Kusama. Features and upgrades land on Moonriver before Moonbeam. Unlike testnets, Moonriver runs with real MOVR tokens and real economic value. DeFi protocols deployed here need reliable RPC just like mainnet deployments.

Cross-chain Kusama ecosystem access

Moonriver gives Ethereum developers access to the Kusama parachain ecosystem via XCM. For protocols building cross-chain applications across Kusama and Ethereum, Moonriver is a key infrastructure layer that needs stable RPC.

Full EVM compatibility

Any Ethereum code works on Moonriver with a single endpoint change. The EVM interface is identical to Moonbeam.

Flat-rate pricing for canary network operations

Running a canary deployment alongside a production deployment typically means running two parallel RPC integrations. Flat pricing means your Moonriver usage does not add meaningfully to your total costs relative to your Moonbeam usage.

WebSocket for real-time Moonriver event monitoring

Subscribe to Moonriver events in real time via WebSocket. Useful for monitoring contract behavior before promoting to Moonbeam.

Supported Methods

Full Moonriver JSON-RPC specification support.

Standard Methods

eth_call eth_getTransactionReceipt eth_blockNumber eth_getBalance eth_sendRawTransaction

Moonriver RPC FAQ

: The Moonriver Mainnet RPC URL with BoltRPC is `https://eu.endpoints.matrixed.link/rpc/moonriver?auth=YOUR_KEY`. Replace `YOUR_KEY` with your API key from [trial.boltrpc.io](https://trial.boltrpc.io). The chain ID is 1285.
: No. Moonriver is a canary network, not a testnet. It runs with real economic value and real MOVR tokens. The distinction is that new features and protocol upgrades are deployed to Moonriver first before going live on [Moonbeam](/networks/moonbeam). Canary networks have real financial risk, they are not free sandboxes like testnets.
: Moonriver is the canary network for [Moonbeam](/networks/moonbeam). It runs on Kusama (Polkadot's canary network) and receives new upgrades before Moonbeam. Moonriver runs with real economic value and real MOVR tokens. Teams often deploy on Moonriver first to validate before going live on Moonbeam.
: Open MetaMask, go to Settings, then Networks, then Add Network, and enter: Network Name: BoltRPC Moonriver, RPC URL: `https://eu.endpoints.matrixed.link/rpc/moonriver?auth=YOUR_KEY`, Chain ID: 1285, Currency Symbol: MOVR, Block Explorer: https://moonriver.moonscan.io.
: Kusama is Polkadot's canary network, a live production network used to test and deploy new Polkadot features before they go live on Polkadot. Moonriver is to Moonbeam what Kusama is to Polkadot: a canary network that runs ahead of the main production chain.
: Yes. BoltRPC provides WebSocket endpoints for Moonriver at `wss://eu.endpoints.matrixed.link/ws/moonriver?auth=YOUR_KEY`. Use WebSocket for real-time Moonriver event subscriptions: new blocks, transaction monitoring, contract events.
: MOVR is the native gas token of Moonriver, the Kusama-based canary network. GLMR is the native token of Moonbeam, the production Polkadot parachain. Both are used to pay gas fees on their respective chains. MOVR and GLMR are separate tokens with independent market prices, though they serve analogous roles within the Moonbeam ecosystem. When planning gas budgets for cross-chain deployments spanning both Moonriver and Moonbeam, account for both token balances separately. Contracts deployed on Moonriver cannot call contracts on Moonbeam directly; they operate on separate chains within separate relay chain ecosystems (Kusama and Polkadot respectively).
: Moonriver inherits the same XCM cross-chain messaging architecture as Moonbeam, meaning protocols that use XCM to pass assets and messages to other Kusama parachains generate additional RPC calls beyond standard single-chain activity. A typical XCM interaction on Moonriver requires an `eth_sendRawTransaction` to initiate the cross-chain message, followed by `eth_getLogs` queries to monitor the XCM execution receipt on the receiving parachain side. For protocols running parallel Moonriver and Moonbeam deployments, this doubles the cross-chain monitoring workload. Dedicated infrastructure with WebSocket subscriptions simplifies this monitoring significantly compared to high-frequency polling.

Moonriver