Celestia RPC Endpoint

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

Celestia is a modular data availability (DA) network that orders transactions and guarantees their data is published, while execution and settlement run on rollups built on top of it. It introduced data availability sampling so light nodes can verify availability without downloading full blocks. SwiftNodes provides Celestia RPC across load-balanced nodes.

Network: Celestia

Type: Non-EVM

Slug: celestia

Native token: TIA (Celestia)

Block time: ~6 seconds

Finality: Single-block deterministic finality via CometBFT once a block is committed (~6 seconds); light-node data availability confidence accrues through sampling.

Mainnet: October 31, 2023

Category: Modular data availability layer (Cosmos SDK / CometBFT)

About Celestia

Celestia launched mainnet on October 31, 2023. It is built with the Cosmos SDK and CometBFT (Tendermint) consensus, and uses Namespaced Merkle Trees so rollups download only the data relevant to them. Light nodes use data availability sampling (DAS) to probabilistically confirm that block data was published.

Rollups post their transaction data to Celestia as blobs rather than executing on Celestia itself. The Ginger upgrade reduced block time to roughly 6 seconds; full DA confidence for light clients accrues as more samples are collected.

Common Use Cases on Celestia

Data availability for rollups
Sovereign rollup data posting
Blob storage for modular chains
Light-node data availability sampling
Cheap off-chain data settlement

Celestia Ecosystem

Used as a DA layer by rollup frameworks and stacks including Arbitrum Orbit, OP Stack chains, Caldera, AltLayer, and Dymension RollApps.

HTTP Endpoint

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

WebSocket Endpoint

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

Quick Start: Connect to Celestia

cURL

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

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

Bridging to Celestia

TIA bridges to other Cosmos chains over IBC; Blobstream relays Celestia data availability attestations to Ethereum and EVM rollups.

Features of SwiftNodes for Celestia

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 Celestia

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: Celestia

How is Celestia queried?

Celestia exposes CometBFT RPC plus the Cosmos SDK REST and gRPC endpoints, and a dedicated node API for submitting and retrieving data blobs by namespace.

Does Celestia have an EVM chain ID?

No. Celestia is a non-EVM Cosmos SDK chain and does not use EVM chain IDs; it identifies networks by a Cosmos chain-id string (for example celestia for mainnet).

What are the TIA token decimals?

TIA uses 6 decimals; the base denomination is utia, where 1 TIA = 1,000,000 utia.

Does Celestia execute smart contracts?

No. Celestia provides ordering and data availability only; execution and settlement happen on rollups that post their data to Celestia.

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