Home / Agent audit & observability / W&B Weave
W&B Weave
Tracing and evaluation toolkit for LLM and agent applications.
Open source + commercialAcquired / parent
| Category | Agent audit & observability |
|---|---|
| Official site | wandb.ai/site/weave/ |
| Maker | Weights & Biases |
| Ownership / acquisition | CoreWeave (acquisition completed May 2025) · source |
| License model | Open source + commercial |
| License | Apache-2.0 |
| Public pricing | Free $0; Pro from $60/mo |
| Source code | wandb/weave |
| Last verified | 2026-10-17 |
Facts are taken from the vendor's own site, GitHub, or a linked public source. Blank means we could not confirm it, not that it does not exist. Vendors can request a correction for free.
Lab result
Not yet tested. When we test a tool we run our attack batteries (prompt injection, indirect injection, MCP tool poisoning and more) and publish the result here, good or bad.