Celer cBridge Review
GPL-3.0 with a published fee ceiling
of 10
Celer publishes its fee as a base fee plus a protocol fee ranging from 0% to 2%, secures transfers through a proof-of-stake State Guardian Network, and releases its contracts under GPL-3.0.
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Fee
Base fee + protocol fee, 0% to 2%
Base fee
Paid in transferred tokens, covers destination gas
Trust model
State Guardian Network, PoS with CELR validators and delegators
Licence
GPL-3.0 (sgn-v2-contracts)
Audits
Not found
Scores
Each criterion carries equal weight. The overall score is the average of these 5 scores — (8.0 + 8.0 + 10.0 + 3.0 + 2.0) ÷ 5 = 6.2.
Pros
- Fee structure published with a stated range: protocol fee 0% to 2%
- Base fee explained as covering destination-chain gas, paid in the transferred token
- State Guardian Network described as a proof-of-stake chain with CELR validators and delegators
- GPL-3.0 — a recognised open-source licence
- Earnings split published: 50% to SGN stakers and delegators, 50% to liquidity providers
Cons
- No total chain count is published
- No audit page could be reached and no auditing firm is named
- The cBridge-contracts repository returned 404 for licence lookup; the licence comes from the SGN v2 contracts repository
A fee with a stated ceiling
Celer publishes its bridge fee as a base fee plus a protocol fee, and states the protocol component ranges from 0% to 2%. A range is less useful than a fixed rate but far more useful than the components-without-figures approach several competitors take — a user knows the worst case.
Security anchored to a staked chain
Transfers are secured by the State Guardian Network, described as a proof-of-stake chain where CELR holders act as validators or delegators. Earnings are split evenly between SGN stakers and liquidity providers.
Two gaps
No total chain count is published, and no audits page could be reached — meaning no auditing firm is named anywhere we could read. For a bridge, an unverifiable audit record is the more serious of the two.
How it compares
Synapse
MIT-licensed, and little else readable
Chainflip
Apache-licensed, with documentation gaps
Squid
Charges nothing, documents little
deBridge
Per-chain flat fees, published in full
Hop Protocol
Every fee component published as a range
Stargate / LayerZero
Exact fee split, and a licence that expired unresolved
Wormhole
A named quorum: 13 of 19 guardians
Across
Optimistic security explained in one sentence
Axelar
Apache-licensed with the deepest audit archive
Sources
Scored from published primary sources rather than hands-on use. Every figure above comes from one of the pages below, on the date shown. Manufacturers change prices and specifications without notice — if something here no longer matches the source, tell us and we will correct it.
- 1.Celer cBridge — FAQ (fees and State Guardian Network) — checked
- 2.Celer SGN v2 contracts — LICENSE — checked
Frequently asked questions
What does Celer cBridge charge?
A base fee covering destination-chain gas plus a protocol fee that Celer states ranges from 0% to 2%.
Is Celer open source?
The SGN v2 contracts repository carries the GNU General Public License v3.0.
Nothing here is financial advice. Editorial policy · How we score · How we're funded.