generated: '2026-09-17'
method: searched
source: >-
  https://docs.celestia.org/llms-full.txt,
  https://docs.celestia.org/operate/networks/mocha-testnet.md
description: >-
  Celestia's "sandbox" is not a test mode inside a hosted API — it is a set of separate,
  fully public networks with their own chain IDs, their own faucets, and the same API
  surface as Mainnet Beta. An integrator selects one with a flag (--p2p.network), and the
  same auth token, the same 80 RPC methods and the same client libraries work against it.
  That is a stronger rehearsal story than most test modes, and it matters here because
  nothing on the write surface is reversible: the testnets are the ONLY place to make a
  mistake safely.
sandbox_available: true
selection:
  mechanism: network flag
  flag: --p2p.network <network>
  note: >-
    The same distinction is baked into the node store path, so a testnet node and a mainnet
    node cannot share state: ~/.celestia-light-mocha-5 vs the mainnet store.
networks:
- name: Mainnet Beta
  chain_id: celestia
  role: production
  cost: real TIA, priced by the fee market
- name: Mocha
  chain_id: mocha-5
  role: public testnet
  cost: free
  faucet: https://faucet.celestia-mocha.com
  faucet_docs: https://docs.celestia.org/operate/networks/mocha-testnet.md
  note: >-
    The recommended rehearsal network. Blobstream test deployments (Sepolia, Arbitrum
    Sepolia, Base Sepolia, Holesky) are attested from Mocha.
- name: Arabica
  role: devnet
  cost: free
  note: Faster-moving devnet for protocol development; less stable than Mocha.
- name: Corto
  role: devnet
  cost: free
  note: >-
    Newer devnet channel — celestia-node cuts -corto prereleases against it (v0.34.x as of
    2026-09). Not documented as a consumer-facing testnet the way Mocha is.
test_credentials:
  test_keys_published: false
  test_key_prefixes: []
  note: >-
    Celestia publishes NO test keys, magic addresses or fixture tokens, and there is no
    test-vs-live key prefix to check. A tester generates their own keypair with
    `celestia-appd keys add` and funds it from the faucet. Nothing in this file is a
    credential; no published secret exists to record.
fixtures:
  time_simulation: false
  trigger_tooling: false
  note: >-
    No test clocks and no event-trigger tooling. Block time is the clock, and it is the
    real one — a test on Mocha advances at the network's actual block cadence.
hosted_node_option:
  available: true
  note: >-
    The private-blockspace quickstart documents using hosted Celestia nodes (QuickNode is
    the named example) instead of running one locally. That is a third-party service, not a
    Celestia Labs offering, and it does not change the API contract.