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Crab Dedicated Nodes

Darwinia

Crab is a universal cross-chain messaging network built on Kusama, serving as the canary network for Darwinia. It provides a light client-based, programmable cross-chain messaging protocol (LCMP) that bridges Substrate-based chains and EVM chains. Developers use Crab RPC endpoints to read blockchain data, submit transactions, and integrate cross-chain capabilities into dApps.

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Build faster with Crab RPC endpoints

Use OnFinality's Crab RPC APIs to connect wallets, dApps, dashboards, bots, and backend services without operating your own node from day one.

Public endpoint testing

Start with the Crab public RPC endpoint for lightweight checks, prototypes, and quick integration tests.

Authenticated API access

Move production traffic to authenticated endpoints when you need clearer limits, analytics, and operational visibility.

Standard RPC methods

Query Crab blocks, transactions, balances, events, and chain state through HTTP and WebSocket workflows.

Operate Crab infrastructure with more control

Production teams need more than an endpoint URL. They need observability, predictable capacity, and a path from shared RPC access to isolated infrastructure.

Request visibility

Track usage patterns and response activity so your team can understand traffic growth before it becomes an incident.

Dedicated node path

Use dedicated Crab nodes when your workload needs isolated resources, custom operations, or stronger capacity planning.

Archive and historical data

Plan for archive access when analytics, audits, indexers, or advanced app features need older Crab state.

Choose the right Crab RPC setup

Different Crab products need different infrastructure. OnFinality gives teams a practical path from public RPC testing to production-grade API and node operations.