Changelog
All notable changes to the Axiom Consensus Protocol are documented here. This changelog follows Keep a Changelog format, and versioning adheres to Semantic Versioning.
v4.0.0 -- 2026-04-09
Initial public release
This is the first public release of the Axiom Consensus Protocol, representing approximately four months of development from December 2025 through April 2026.
Core Protocol
The foundational ACP v4.0 specification, defining the theoretical framework and mathematical guarantees for multi-model consensus.
| Feature | Description |
|---|---|
| ACP v4.0 Specification | Complete protocol specification with 7 axiom levels, phi-convergence, and musical structures. |
| Meta-Axiom | "AI cannot lie -- only make errors." The foundational axiom that makes consensus possible. |
| Truth as Strange Attractor | Chaos theory foundation: truth functions as an attractor in the space of possible answers. |
| D-score and H_total Metrics | Divergence score (0 = consensus, 1 = total disagreement) and Harmony score (H = 1 - D). |
| Consensus Guarantee | D < 0.05 guaranteed within 7 iterations through phi-convergence. |
Python Reference Implementation
The complete reference implementation of ACP in Python, providing all the components needed to run consensus locally or as a service.
| Component | Description |
|---|---|
| ConsensusEngine | Core engine with Fugue (deep analysis), Sonata (conflict resolution), and Concert (creative) structures. |
| Multi-Provider LLM Support | Adapters for OpenAI, Anthropic, and OpenRouter, enabling consensus across different model providers. |
| Oracle System | Verification oracles for Math, Hash, and Web-based fact checking. |
| Axiom Registry | SQLAlchemy + PostgreSQL backed registry for managing axioms across 7 levels. |
| FastAPI REST API | Production-ready API endpoints for consensus, health checks, and WebSocket connections. |
Cloudflare Workers Edge API
A serverless edge deployment of ACP for low-latency global access.
| Feature | Description |
|---|---|
| Serverless Consensus API | Full consensus API with less than 100ms global latency via Cloudflare's edge network. |
| Vectorize Integration | 768-dimensional embeddings across 3 indexes for semantic axiom matching. |
| Semantic Caching | Similarity-threshold caching to avoid redundant LLM calls for near-identical queries. |
| KV Rate Limiting | Cloudflare KV-based rate limiting and metrics collection at the edge. |
| Workers AI Embeddings | On-edge embedding generation using bge-base-en-v1.5 model. |
Ecosystem
Supporting repositories and tools that complement the core ACP implementation.
| Component | Description |
|---|---|
| ACP-DATASETS | Verified axioms across all 7 levels, curated and validated for use in consensus. |
| ACP-PROMPTS | 15 specialized system prompts for AI agents participating in ACP consensus. |
| Conclave Mode | Isolated model consensus where each model responds independently before synthesis, preventing cross-contamination. |
Security
Security measures implemented in the v4.0.0 release.
- Prompt injection detection covering leetspeak, Unicode normalization, and newline bypass attempts
- Configurable CORS policies and API key protection
- No hardcoded credentials or infrastructure URLs in the codebase
Legal Framework
Legal infrastructure established for the project.
- Business Source License 1.1 (BSL 1.1), transitioning to Apache 2.0 on 2030-04-09
- Contributor License Agreement available in both Individual and Corporate forms
- Trademark Policy for the ACP brand and associated marks