compare
Open Policy Agent vs SpiceDB
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Open Policy Agent | SpiceDB |
|---|---|---|
| Language | Go | Go |
| Licence | Apache-2.0 | Apache-2.0 |
| Stars | 12k | 7.2k |
| Latest | v1.21.2 | v1.56.2 |
| Last push | 2026-10-17 | 2026-10-18 |
| Release cadence | about 10 days between releases | about 34 days between releases |
| Active contributors | 32 commit authors on the default branch in the last 90 days | 13 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace AWS Verified Permissions. Alternatives to AWS Verified Permissions →
PartialOpen Policy AgentGeneral-purpose policy engine with the Rego language, not limited to application permissions.
PartialSpiceDBZanzibar-style relationship checks instead of Cedar policies, run on your own infrastructure.
Open Policy Agent
- v1.21.22026-10-12This release builds the OPA binary artifacts with the latest version of Go (v1.27.2), its standard library, and the gol…
- v1.21.12026-09-29This release fixes a compiler regression introduced in OPA v1.21.0.
- v1.21.02026-09-24This release contains a mix of new features and bug fixes. Notably:
- v1.20.22026-09-03This release includes a bug fix for a parser regression introduced in v1.20.0, and dependency updates.
- v1.20.12026-08-28This release includes a bug fix for a regression introduced in v1.20.0 in
SpiceDB
- v1.56.22026-09-11Increase the timeout for datastore readiness checks to account for the possibility of far away databases
- v1.56.12026-08-26Schema compilation: reduce memory usage when caveats are involved
- v1.56.02026-07-24New metric check_permissionship_total for CheckPermission and CheckBulkPermissions that counts the number of requests t…
- v1.54.02026-06-18Prevent cache poisoning. The dispatch Check cache key now incorporates check hints. See
- v1.53.02026-05-13Add DispatchExecutor, a query plan executor that is Dispatch-aware and sends subproblems on Alias boundaries
Open Policy Agent
unsigned The latest release, v1.21.2, carries no signature GitHub could verify.
Loading the security report
SpiceDB
✓ signed The latest release, v1.56.2, carries a signature GitHub verified.
Loading the security report