Show HN: LLM-spend – Audit your OpenAI/Anthropic API spend locallyI build spend-pacing systems for ad auctions for a living, and my side-project agent workloads still kept surprising me with API bills I couldn't explain. When I asked around how people attribute LLM spend, the answers were the provider dashboard or a spreadsheet.llm-spend is a local CLI that pulls usage from the OpenAI/Anthropic reporting APIs, breaks spend down by key, model and project, projects end-of-month, and flags days that look abnormal against the same weekday's history. It also does a second, independent read of the provider's cost API and warns if the totals disagree by more than 1%. That check exists because I don't want to ship you a wrong report: it catches unit, pagination and grouping bugs in my own pipeline. It checks against the provider's cost API, not your invoice — credits, tax and non-API charges live elsewhere.Keys are the ugly part. OpenAI admin keys can be scoped down to read-only usage/cost access, but admin keys require a Team plan. Anthropic admin keys can'