Slither

Python framework for static analysis of Solidity and Vyper smart contracts

Also known as
slither

Available worldwide

What is Slither?

Detects issues in Solidity and Vyper smart contracts using static analysis, providing visual reports and a custom analysis API for security assessment.

Independently observed

Slither pricing

We don't have Slither's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.

What Slither does

The capabilities that matter for blockchain dev tools, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.

Capabilities
Tooling type
Security analysis
Evm compatible only
-
Local dev network
-
Native fuzzing invariant testing
-
Mainnet forking
-
Contract verification integration
-
Trace debugger
-
Gas profiling
-
Archive node access
-
Graphql indexing
-
Static analysis security tool
✓
Open source
✓
Maintenance status
-
Independently observed

Platform & deployment

Independently observed
Platforms
  • CLI
Deployment
  • Self-hosted

Integrations (9)

Independently observed
  • GitHub Actions
  • Hardhat
  • Foundry
  • Brownie
  • Dapp
  • Pre-commit
  • Docker
  • Pyth Oracle detectors
  • Chronicle detectors

Security & compliance

Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality

Slither FAQ

Common questions about Slither, answered from independent, dated evidence.

What is Slither?

An open-source Python framework that scans smart contract source code for security issues using built-in detectors, generates visual contract analysis reports, and provides an extensible API for writing custom vulnerability checks. Enables developers to catch bugs before deployment and better understand contract behavior. It is indexed under Blockchain Dev Tools.

Source: https://github.com/pricing

What platforms does Slither support?

Slither supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.

Source: https://github.com/pricing

Can Slither be self-hosted?

Yes. Slither can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.

Source: https://github.com/pricing

What does Slither integrate with?

We have confirmed 9 integrations for Slither, including GitHub Actions, Hardhat, Foundry, Brownie, Dapp, Pre-commit, Docker and Pyth Oracle detectors, plus 1 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.

Source: https://github.com/pricing

Is Slither open source?

Yes. Slither is published under the AGPL-3.0 licence, a copyleft licence, so check its terms before embedding it in a closed-source product. Licence terms can change between releases, so verify against the repository for the version you intend to use.

Source: https://github.com/crytic/slither

Slither alternatives

Other blockchain dev tools we track, ranked by the same independent score.

All Slither alternatives, ranked →

Compare Slither

Side by side against other blockchain dev tools, attribute by attribute, with a source on every value.

Independent · unbought · dated

The vioscaleAI score: one lens on the evidence

Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Slither, not the verdict.

Balanced composite 38 / 100
high · 77%
Signal contributions to the composite score
SignalScoreWeightContributionEvidence
Release cadence620.074.2✓
Capabilities460.083.8✓
Security score700.053.7✓
Dependent projects380.083.0✓
Stars720.032.4✓
Integrations290.051.5✓
Development activity00.120.0✓
Security posture00.090.0-
Package downloads00.170.0-
Developer Q&A activity00.080.0-

Computed . Re-weight it by intent, or see the full method.

All data & sourcesshow ↓

Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.

Activity

AttributeValueEvidence
Commits last 30d0mediumsource · 2026-10-14 · 65%

Adoption

AttributeValueEvidence
Github stars6,378highsource · 2026-10-14 · 90%
Dependent repos186highsource · 2026-10-14 · 85%

Content

AttributeValueEvidence
Faq5 itemsmediumsource · 2026-09-10 · 67%

Features

AttributeValueEvidence
CapabilitiesOpen source: Yes · Tooling type: security-analysis · Static analysis security tool: Yesmediumsource · 2026-10-14 · 60%

Integrations

AttributeValueEvidence
Count9mediumsource · 2026-08-18 · 60%

Language

AttributeValueEvidence
PrimaryPythonhighsource · 2026-10-14 · 90%

License

AttributeValueEvidence
SpdxAGPL-3.0highsource · 2026-10-14 · 95%

Market

AttributeValueEvidence
AvailabilityPrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: …highsource · 2026-08-18 · 75%

Pricing

AttributeValueEvidence
Modelopen_sourcemediumsource · 2026-10-14 · 60%
Price levelfreemediumsource · 2026-10-14 · 60%

Release

AttributeValueEvidence
Cadence days68mediumsource · 2026-10-14 · 70%
History20 itemsmediumsource · 2026-10-14 · 70%

Security

AttributeValueEvidence
Scorecard7highsource · 2026-10-14 · 90%
VulnerabilitiesCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=slither-analyzer&per_page=100 · Last 12m: 0highsource · 2026-10-14 · 90%
Trust centerhttps://github.com/securitymediumsource · 2026-10-14 · 60%
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Last updated . Canonical URI: https://www.vioscale.ai/software/slither.