Argosvix

Frequently asked

The questions we hear most before you get started.

Can I verify my Cursor or Claude.ai bill / token usage?

No — Cursor, Claude.ai, ChatGPT, and similar subscription tools call LLM APIs server-side, so a third-party tool can't observe them. Argosvix observes your own application when you call OpenAI / Anthropic / Gemini / Mistral / Grok / Kimi / DeepSeek / Qwen / Muse Spark SDKs directly.

Where is my data stored?

Cloudflare's Tokyo region (D1). Prompt and completion plaintext is AES-256-GCM encrypted. Per-record deletion and shortened retention are both controllable from your account.

How is this different from Langfuse / Helicone?

Three things. First, more than half of the 89 MCP tools are write/operation tools so Claude / Cursor / Codex CLI can actually change things — most tools in this space lean read-only, and we put writes front and center. Second, a flat $13/mo for up to 1,000,000 calls — most competitors move to usage-based pricing after tens of thousands of events. Third, recording, alerts, prompt management, eval, safety classification, and MCP are all in one contract.

What are the Free plan limits?

50,000 calls / month, 30-day retention, 3 alerts, 1,000-record CSV export, 1 seat. Paid starts at Pro: a flat 1,980 JPY (about $13) per month for up to 1,000,000 calls with 90-day retention, with a 7-day free trial.

Can I keep my code private?

The SDK is a public package on npm (@argosvix/sdk) and PyPI (argosvix). Your code and prompts are only sent to your Argosvix dashboard — never published or shared.

Can I self-host?

The SaaS backend is closed source and there is no self-hosted edition. The SDKs, CLI and MCP server are MIT-licensed with public source mirrors on GitHub, but those are client-side packages — it does not mean the service itself can be self-hosted. A self-hosted edition is under consideration with no committed timeline. If you need it, tell us at [email protected].

Which languages / SDKs are supported?

Official SDKs for TypeScript / JavaScript (@argosvix/sdk on npm) and Python (argosvix on PyPI). You can also POST to the REST API directly without an SDK.

Which clients support MCP?

Any MCP-capable client — Claude Desktop, Cursor, Codex CLI, and others. Both stdio and HTTP transports are supported.

How do trials and cancellation work?

Pro comes with a 7-day free trial; cancel within the trial and you won't be charged. You can cancel anytime from the billing screen and keep access until the end of the current billing period.