RPC health dashboard
Requests, compute units, spend and latency per network and per key, updated as traffic flows.
New Nadcab RPC is live at rpc.nadcab.comIntelligent RPC infrastructure
Intelligent RPC infrastructure
for dApps and chains
Modular RPC solutions to launch, scale and monitor your Web3 infrastructure. One key, 70+ networks, smart routing and pay-as-you-go pricing.
$ curl https://rpc.nadcab.com/ethereum/ncl_your_api_key \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'
{"jsonrpc":"2.0","id":1,"result":"0x15b3f2a"}70+Networks
150+Endpoints (mainnet + testnet)
99.99%Gateway uptime target
$0.375Per 1M compute units
Products
Modular RPC solutions built for scale
Use our managed cloud, run the routing engine yourself, or let us build exactly what your stack needs.
Nadcab Cloud
70+ networks. From $10. Full speed, no rate tiers.
- 70+ chain APIs
- Geo-distributed routing
- Low latency
- Pay-as-you-go pricing
Nadcab Core
Your nodes, our routing engine. Deploy anywhere.
- Smart routing engine
- Deploy anywhere
- Connect any node
- Optimised for scale
Nadcab Craft
When an off-the-shelf gateway is not enough.
- Dedicated clusters
- Custom auth & routing
- Compliance logging
- Enterprise SLA
Dev onboarding toolkit
Copy-paste endpoints, add-to-wallet buttons and examples for ethers, viem, web3.js and Solana.
Ship faster on every chain
One key for every network your product touches. No per-chain contracts, no rate tiers, no surprise invoices.
Get an API key- HTTPS and WebSocket endpoints for 70+ networks
- Automatic failover across healthy upstreams
- Per-key usage, tags and instant revoke
- Prepaid compute-unit billing from $10
Builders
Trusted by teams shipping on-chain products
“Moving our multichain backend to a single Nadcab key removed a whole class of outages. Failover just happens, and the bill is easy to predict.”
“WebSocket subscriptions stay up through upstream restarts. That alone saved our indexer team weeks of reconnect logic.”
“Nadcab launched our chain and gave our builders public and premium RPC on day one. Onboarding new teams is now a link, not a ticket.”
Why you need this
RPC isn't optional. It's your app's lifeline.
If it's slow, spotty or breaks under traffic, your users feel it first. Most teams wait too long to fix it, until latency kills conversions or outages damage trust.
Observability over your full RPC setup
Requests, compute units, spend and errors per key and per network, so you see problems before your users do.
Tools that grow with your app
Start with one key on a prepaid balance; add tags, limits, more networks and dedicated nodes as traffic grows.
Flexibility to self-host, go cloud or customise
Use Nadcab Cloud, run Nadcab Core in your own infra, or let Nadcab Craft build the exact stack you need.
What we have built
A modular RPC stack for any environment
Nadcab Cloud
Managed multichain RPC
- Smart routing
- HTTPS + WSS
- Archive & MEV-protected
Nadcab Core
Self-hosted RPC load balancer
- Health-aware balancing
- Bring any provider
- Key-based metering
Nadcab Craft
Custom RPC solutions
- Dedicated nodes
- Custom authentication
- Private & appchains
Nadcab for Chains
Infra for blockchain teams
- Public & premium tiers
- Branded faucet
- Health dashboard
Why Nadcab
Not just another gateway. The full stack.
Smart load balancing
Health-aware routing for performance and uptime across every upstream.
Multichain support
70+ networks and 150+ endpoints across mainnets and testnets.
Battle-tested providers
Backed by a distributed network of node providers under the hood.
Transparent pricing
$0.375 per 1M compute units. Prepaid, no subscription required.
FAQ
Frequently asked questions
What is Nadcab RPC?
Nadcab RPC is a managed multichain RPC gateway. One API key gives you HTTPS and WebSocket endpoints for 70+ networks, routed to healthy upstream providers and billed per compute unit.
How does pricing work?
Prepaid and pay-as-you-go. You top up your balance (from $10) and each request is charged in compute units at $0.375 per 1M CU. Most calls cost 20 CU, so 1M requests is about $7.50. Metadata calls like eth_chainId are free.
What happens when my balance runs out?
Requests return an "Insufficient wallet balance" JSON-RPC error until you top up. Your keys, tags and settings stay as they are.
Which networks are supported?
Ethereum, BNB Chain, Polygon, Arbitrum, Optimism, Base, Avalanche, Solana, and 60+ more, mostly with testnets. See the Chainlist for the full, live list.
Do you support WebSockets?
Yes. Every network with a WebSocket endpoint is available at wss://rpc.nadcab.com/<network>/<your key> with the same key and billing as HTTPS.
Can I self-host?
Yes. Nadcab Core is the same routing engine that powers Nadcab Cloud and can run in your own infrastructure. Contact us to get started.
How do I keep my key safe?
Treat keys like passwords. Use separate keys per app or environment, tag them, and revoke any key instantly from the dashboard. Server-side use is recommended for high-value keys.
Do you offer enterprise plans?
Yes. Dedicated nodes, custom auth, compliance logging and contractual SLAs are available through Nadcab Craft.
Start building in under a minute
Sign in, copy your endpoint, and send your first request.