Neutron RPC Endpoint

Fast, flat-rate Neutron RPC node provider — free tier, no KYC, HTTP & WebSocket.

Neutron is a Cosmos SDK smart-contract platform using the CosmWasm execution environment, designed for cross-chain DeFi applications connected over IBC. It launched as a Cosmos Hub Interchain Security consumer chain and later transitioned to its own validator set. SwiftNodes provides Neutron RPC across load-balanced nodes.

Network: Neutron

Type: Non-EVM

Slug: neutron

Native token: NTRN (Neutron)

Block time: ~1 to 3 seconds

Finality: Single-block deterministic finality via CometBFT once a block is committed.

Mainnet: May 10, 2023

Category: Cosmos SDK CosmWasm smart-contract chain (CometBFT)

About Neutron

Neutron's mainnet genesis was on May 10, 2023, launching as the first Interchain Security (replicated security) consumer chain secured by Cosmos Hub validators. With the Mercury upgrade in April 2025 it became a sovereign chain operating its own curated validator set rather than relying on the Cosmos Hub.

Smart contracts on Neutron are written in CosmWasm (Rust compiled to Wasm) and can make IBC calls and interchain account queries, making it a hub for cross-chain DeFi protocols.

Common Use Cases on Neutron

Cross-chain DeFi protocols
CosmWasm smart contracts
Interchain queries and accounts
Money markets and DEXes
Oracle-driven applications

Neutron Ecosystem

Hosts protocols such as Astroport, Mars Protocol, Duality, and Drop (liquid staking), with pricing supported by the Slinky/oracle integration.

HTTP Endpoint

https://rpc.swiftnodes.io/rpc/neutron?key=YOUR_API_KEY

WebSocket Endpoint

wss://rpc.swiftnodes.io/ws/neutron?key=YOUR_API_KEY

Quick Start: Connect to Neutron

cURL

curl -X POST https://rpc.swiftnodes.io/rpc/neutron?key=YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"getHealth","id":1}'

Note: Neutron uses its own RPC methods. Refer to the official Neutron documentation for available methods.

Bridging to Neutron

Assets move to Neutron over IBC; Noble provides native USDC, and Axelar GMP connects Neutron to EVM ecosystems.

Features of SwiftNodes for Neutron

Multiple load-balanced upstream nodes for high availability
Health-checked every 60 seconds with automatic failover
Free tier available — no credit card or KYC required
Flat-rate monthly pricing with no per-request fees
HTTP and WebSocket support
One API key works across all 75+ supported chains, including Neutron

Rate Limits

Plan	Price	HTTP req/s	WS msg/s
Free	$0/mo	2	1
Starter	$49/mo	50	25
Growth	$89/mo	150	75
Scale	$149/mo	300	150
Pro	$249/mo	500	250

Frequently Asked Questions: Neutron

How is Neutron queried?

Neutron exposes CometBFT RPC plus Cosmos SDK REST and gRPC endpoints, including the CosmWasm (wasm) module queries for reading and executing smart contracts.

Does Neutron have an EVM chain ID?

No. Neutron is a non-EVM Cosmos SDK chain and uses a Cosmos chain-id string (neutron-1) rather than an EVM chain ID; contracts run on CosmWasm, not the EVM.

What are the NTRN token decimals?

NTRN uses 6 decimals; the base denomination is untrn, where 1 NTRN = 1,000,000 untrn.

Is Neutron still secured by the Cosmos Hub?

No longer. Neutron launched under Cosmos Hub Interchain Security but became a sovereign chain with its own validator set following the Mercury upgrade in April 2025.

Ready to start building on Neutron? Connect your wallet and get a free API key in 30 seconds. No email or KYC required.