Echidna

Echidna

Crytic
+
+

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About

Echidna is a Haskell program designed for fuzzing/property-based testing of Ethereum smart contracts. It uses sophisticated grammar-based fuzzing campaigns based on a contract ABI to falsify user-defined predicates or Solidity assertions. We designed Echidna with modularity in mind, so it can be easily extended to include new mutations or test specific contracts in specific cases. Generates inputs tailored to your actual code. Optional corpus collection, mutation and coverage guidance to find deeper bugs. Powered by Slither to extract useful information before the fuzzing campaign. Source code integration to identify which lines are covered after the fuzzing campaign. Interactive terminal UI, text-only or JSON output. Automatic test case minimization for quick triage. Seamless integration into the development workflow. Maximum gas usage reporting of the fuzzing campaign. Support for a complex contract initialization with Etheno and Truffle.

About

Verid is a developer-first web change detection API for monitoring any webpage for changes through structured data, not screenshots. Instead of alerting when a page visually changes, Verid extracts the exact field you care about, such as price, version, stock status, API response value, or availability, then fires a webhook only when a predicate you define is true. It is built for state monitoring, not screenshot diffing, giving developers structured extraction, durable state, field-level diffing, and predicate-driven delivery in one loop. Every monitor runs on a schedule you set through a full REST API with an OpenAPI 3.1 spec, so teams write the configuration while Verid runs the infrastructure. The pipeline follows five stages; fetch, extract, diff, predicate, and deliver. Verid starts with static fetch, automatically falls back to a headless browser when needed, and can escalate to a residential proxy when a site is harder to access.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Programmers interested in a tool providing an Ethereum smart contract fuzzer

Audience

Developer teams that need API-driven web monitoring to extract structured fields, detect meaningful changes, and trigger reliable workflows

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

$19 per month
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Crytic
github.com/crytic/echidna

Company Information

Verid
United States
verid.dev/

Alternatives

Alternatives

waiting

waiting

Python Software Foundation
LibFuzzer

LibFuzzer

LLVM Project
Peach Fuzzer

Peach Fuzzer

Peach Tech
go-fuzz

go-fuzz

dvyukov

Categories

Categories

Integrations

JSON
CSS
CoinGecko
Discord
Docker
Etheno
Ethereum
GitHub
Haskell
Homebrew
Nix
Node.js
Slack
Solidity

Integrations

JSON
CSS
CoinGecko
Discord
Docker
Etheno
Ethereum
GitHub
Haskell
Homebrew
Nix
Node.js
Slack
Solidity
Claim Echidna and update features and information
Claim Echidna and update features and information
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Claim Verid and update features and information