OpenFang vs Provena

OpenFang and Provena are both agent frameworks tracked by AIDiveForge. Below is a side-by-side comparison of pricing, capabilities, platforms, and ownership — sourced from each tool's live website and verified before publishing.

OpenFang

An open-source Agent Operating System built from scratch in Rust, designed to run autonomous agents on schedules.

Provena

Provena wraps around retrieval steps, tools, and context assembly logic to log where every chunk of data came from, hash it for tamper detection, and surface that audit trail when something breaks or an auditor asks. The vendor describes six framework adapters, an MCP server, PostgreSQL storage, and a policy engine — covering most standard Python-based pipelines without requiring a hosted service. Installation is self-hosted and free. The ceiling appears when your compliance requirement goes beyond audit trails: Provena is a passive tracking library, not an enforcement layer, so it records what happened but does not block a bad retrieval from reaching the model. Teams with hard EU AI Act enforcement obligations pair it with a separate policy gate.

Attribute	OpenFang	Provena
Pricing	Free	Free
Free trial	No	No
Open source	No	Yes
Has API	Yes	Yes
Self-hosted option	Yes	Yes
Platforms	macOS, Linux, and Windows	Python
Languages	Built with Rust	—
Released	2026-02	—
Pros	Compiles to a single ~32MB binary with no external dependencies Seven autonomous Hands and 16 security layers included 40 messaging channel adapters provide the broadest platform coverage 15-crate modular Rust workspace enables extensibility and maintenance Comprehensive security including WASM dual-metered sandbox, Ed25519 signing, Merkle audit trail, and taint tracking	Cryptographic hashing of context chunks at retrieval time, so you can prove after a bad decision whether the data was modified between ingestion and inference — without this, you are reconstructing events from logs that were never designed for forensics. Six framework adapters described in the docs, which means most Python-based RAG or agent stacks get instrumentation without a custom integration layer. PostgreSQL-backed audit storage, so the provenance trail is queryable and retainable for the duration a compliance regime requires — not just written to a flat log that gets rotated. Policy engine that can flag staleness and provenance violations against configurable rules, which means a single misconfigured retriever shows up as an anomaly rather than silently degrading answer quality for weeks. Fully self-hosted and open-source, so the audit data never leaves your infrastructure — a hard requirement for teams in regulated industries where sending context logs to a third-party SaaS is not an option.
Cons	Feature complete but pre-1.0 status means rough edges and breaking changes between minor versions Not all Hands are equally mature; Browser and Researcher are most battle-tested Target for rock-solid v1.0 is mid-2026, indicating ongoing volatility expected	Provena is a passive observer: it records what entered the context pipeline but does not block a stale or untrusted source from reaching the model. Teams whose compliance requirement is active enforcement — reject this retrieval, do not just log it — must build a blocking layer on top, effectively maintaining two systems where they expected one. With 23 open issues and 2 stars on GitHub at the time of scrape, the project is early-stage and community support is thin. When an adapter breaks against a framework update, the fix timeline depends on a single maintainer; teams with production SLAs are on their own until a patch lands. PostgreSQL is the only described storage backend. Pipelines already standardised on a different data store — a managed cloud warehouse, an observability platform — face a schema translation step or run a second database exclusively for provenance records, which most teams will not accept at scale.

Bottom line

Provena is open source. Choose based on which difference matters most for your workflow.

Frequently asked questions

What is the difference between OpenFang and Provena?

OpenFang is Free, while Provena is Free and open source. Compare pricing, free trial, API, platforms, and pros/cons in the table above on AIDiveForge.

Is OpenFang better than Provena?

It depends on your workflow. Use the side-by-side attributes (pricing, open source, API, self-hosted, platforms) to decide. AIDiveForge does not rank a universal winner — we publish verified facts so you can choose.