Valistry

W&B Weave

Each call Weave traced in the project. Its operation, usage and cost. Start and end, and whether it failed. Never an input or an output.

Access

Kind
A read-only key you paste
What to give
W&B API key
Why that one
A Weights & Biases API key that can read the project. Valistry reads the calls' timing, op name and usage summary with an explicit column list that carries no input and no output.

What it attributes on its own

From the source
day; project; model as Weave priced it; calls; input, output and cached tokens; what Weave costed them at; calls that raised
Needs a rule or a trace
the provider's invoice — Weave computes a cost, it does not bill you; team, workflow and agent unless a rule maps the project; outcome — evaluations are a later slice

The addresses it calls

  • https://trace.wandb.ai

Valistry calls only these addresses. It blocks any other call and logs every call.

Connecting it

  1. Create an API key. Profile icon → User settings → API keys → New key Open ↗
  2. Copy the team and project. Open the project's Weave page, at wandb.ai/team/project/weave. A personal project's team is your user name. Open ↗

Weave shows a cost; your provider bills it. Connecting both Weave and a provider it traces counts the same call twice — connect one. Pick Weave to see cost by op and project. Pick the provider to match the invoice.