Z3 Python Packages

crosshair-tool

An analysis tool for Python that blurs the line between testing and type systems.

velaris-lang

Run code an AI wrote without handing it everything you can reach. Each function declares what it may touch. You grant the run one folder, one host or a number of calls, and the runtime refuses anything else the moment it's tried.

manticore

Symbolic execution tool

certo-math

Between having a mathematical idea and having a proof of it there is a lot of work that is not proving: find the object, break the false claims, measure what survives, reduce it to what it really is, assemble the rest. certo does that work, and every step returns a certificate anyone can re-check without trusting it. CLI + MCP.

oxiz

OxiZ is a high-performance Satisfiability Modulo Theories (SMT) solver written entirely in Rust. This project is part of an initiative to reimplement Z3 in Pure Rust. Pure Rust is a fundamental requirement - no C/C++ dependencies, no FFI bindings, just clean, safe Rust code.

csl-core

Find, prove and control the AI agents on your machines: discovers every agent and what it can reach, proves policies with Z3 + TLA+, enforces them deterministically outside the model.

ffg

A generator for Semantic Fusion

sabline-lang

Run code an AI wrote without handing it everything you can reach. Each function declares what it may touch. You grant the run one folder, one host or a number of calls, and the runtime refuses anything else the moment it's tried.

intrepyd

Intrepyd Model Checker

unicode-fol-kit

Parse, translate, prove and model-check logic formulas in Unicode notation: first-order, modal, description and higher-order logic, one API over a dozen provers, and an MCP server

cadl-lang

CADL (Contract Architecture Description Language): a DSL and toolchain for specifying, verifying and generating code from institutional designs in Systems of Systems

a2a-greenhelix-sdk

Agent-to-agent payments, escrow and formal verification services

erdl-formal

Determinism isn't tested — it's proven. SMT-based formal verification for ERDL, the rule language of enterprise AI agents.

qwed-finance

Deterministic verification layer for AI-generated financial decisions. Verifies math (NPV, IRR, Black-Scholes, YTM, VaR), compliance (AML/KYC via Z3), and banking schemas (ISO 20022, SWIFT) — fail-closed, proof-backed. Not execution. Verification.

cryptanalysis

Automated cryptanalysis of substitution permutation network cipher

iamprover

Formally verify AWS IAM security invariants with Z3 — SMT proofs and counterexample traces, not pattern-matching. CI-gate your Terraform IAM changes.

str8ts-solver

str8ts solver using z3

unicode-logic-kit

Parse, translate, prove and model-check logic formulas in Unicode notation: first-order, modal, description and higher-order logic, one API over a dozen provers, and an MCP server

reasonsmith

Prove which legally-owed reasons a decision system deleted, and from whom — by re-running its own inference, not reading its log. Every verdict states how it was reached.

grilops

a GRId LOgic Puzzle Solver library

qwed-mcp

Deterministic verification gateway for MCP — risk-gated Python execution in a restricted environment, math/logic/code/SQL verification engines, and skill supply-chain provenance guard

eleph

A language whose programs cannot lie.

clauz3

Static contract experiments for agent-authored Python

dataforge-07-mcp

Verifiable data-mutation protocol for tabular data: changes only what it can prove correct against stated constraints, refuses the rest with a reason, is byte-for-byte reversible, and emits a portable attestation a third party can verify without trusting it.