semaphore-protocol/semaphore
Some data may be outdated — see provenance labels.
A zero-knowledge protocol for anonymous interactions. observed · 2026-09-28
Health v2 · maintenance only
92/100
- Activity 95
- Release rhythm 84
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 12
- age_days: 2755
- days_rel: 104
- days_push: 32
- n_releases_24m: 26
Adoption not part of the score
1088 stars · 298 forks observed · 2026-09-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Semaphore is a zero-knowledge protocol and toolkit for proving group membership anonymously, letting users cast signals like votes or endorsements without revealing their identity. It ships as off-chain JavaScript/TypeScript libraries, on-chain Solidity verifier contracts, Circom circuits, and a CLI for scaffolding projects.
Use cases
- build anonymous voting on Ethereum
- prove group membership without revealing identity
- prevent double-signaling with nullifiers
- create anonymous feedback or endorsement systems
- manage privacy-preserving Merkle tree groups
- generate and verify zk-SNARK proofs in a dApp
When to choose
- you need anonymous group signals like private voting or whistleblowing on Ethereum
- you want a well-documented, modular zk protocol with libraries, contracts, and a trusted setup already done
- you are building a dApp that needs a generic privacy layer with double-signaling protection
When to avoid
- you need general-purpose zk-SNARK tooling rather than group-membership signaling
- your application is not Ethereum/EVM-based
- you need fully non-anonymous authentication or standard identity management
Facets
library · maturity active
cryptography sdk cli web-framework blockchain privacy security developer-tools zero-knowledge zk-snarks anonymous-voting merkle-tree proof-of-membership monorepo ethereum privacy-preserving typescript javascript nodejs solidity circom
4 sources
- readme: https://github.com/semaphore-protocol/semaphore · fetched 2026-09-28 · d562781e3609
- homepage: https://semaphore.pse.dev · fetched 2026-08-29 · 7b2c9635d872
- site_page: https://docs.semaphore.pse.dev · fetched 2026-08-29 · 763c8c8eb1d0
- site_page: https://docs.semaphore.pse.dev/getting-started · fetched 2026-08-29 · 31ce16ed71b1
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| semaphore-protocol/semaphore | main | 92 |
For agents
markdown · JSON · MCP: product_card(name="semaphore-protocol/semaphore")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem