Q token mark QUADRPC Endpoints

QUAD RPC / Free Cosmos Hub RPC

Cosmos Hub RPC endpoint — free, dedicated when you need it.

Public, rate-limited Cosmos Hub (cosmoshub-4) RPC + REST you can curl right now with no key. Upgrade to CU-metered dedicated throughput for production. Self-hosted node, pay in crypto — XMR/ZEPH/BTC/SUI, no KYC, no account.

Try it free Buy CU Quickstart Live Status

Endpoint At A Glance

A self-hosted Cosmos Hub (cosmoshub-4) node for apps, wallets, indexers, and relayers — free to try, with CU-metered dedicated throughput when you go to production.

Endpoint

cosmos.rpc.uquad.org

Chain ID

cosmoshub-4 (mainnet)

Interfaces

Tendermint RPC / REST / gRPC

Access

Free public tier (rate-limited, no key, no account, no KYC). Add X-API-Key for CU-metered dedicated throughput.

Use Case

Use this page when the job is reading Cosmos Hub node status, node info, common REST state, or authenticated endpoint readiness before integration.

  1. Curl it free.Hit the endpoint with no key — the free public tier is rate-limited (~300 req/min/IP). No signup, no account.
  2. Read live status.Check status.json before treating the endpoint as healthy, synced, or customer-ready.
  3. Send authenticated requests.Include wallet and API-key headers on HTTP requests and gRPC metadata.
  4. Watch the boundary.RPC observation is not chain truth, custody, settlement, ordering, finality, or an uptime guarantee.

Example Requests

The free public tier needs no key — just curl it. For production throughput, add your CU key.

Free (no key, rate-limited ~300 req/min/IP):

curl https://cosmos.rpc.uquad.org/status
curl https://cosmos.rpc.uquad.org/cosmos/base/tendermint/v1beta1/syncing

Production (CU key, dedicated throughput):

curl \
  -H "X-Wallet-Address: <wallet>" \
  -H "X-API-Key: <api-key>" \
  https://cosmos.rpc.uquad.org/status

What This Page Does Not Claim

These pages are designed for search intent and developer onboarding, but the public boundary stays smaller than the infrastructure.

Free Tier Is Rate-Limited

The free public tier is throttled (~300 req/min/IP). Production apps need a CU key.

No Uptime Guarantee

Current status belongs to the live feed and can change.

No Finality Claim

RPC responses do not replace chain consensus, settlement, or independent verification.

No Token Claim

Buying CU does not create allocation, yield, redemption value, reward eligibility, governance right, or future entitlement.