Support

jpcite is a self-service-first API / MCP service. Support is offered through the four channels below (FAQ / email / status / docs). We do not offer individual onboarding meetings, dedicated chat, or individual contract negotiation. Corporate purchasing and our legal stance are published on corporate purchasing and the legal stance pages.

Support channels

Contact

Email: [email protected]. The first reply is normally within one business day (JST, weekdays 9:00–18:00).

Status

Published at status.html. Incident information and planned maintenance are updated there.

Bug reports / feature requests

Bugs and feature requests: [email protected]. For security reports only, please use the private channel via security/.

Documentation

• Five-minute quick start
• Prompts / Cookbook (12 recipes)
• API reference

FAQ

Where do I issue an API key?

Three ways: 1) issue a paid API key from Pricing (Stripe Checkout, fully metered at ¥3.30/unit, issued immediately); 2) an email trial (14 days / 200 requests, magic-link auth, no card, no automatic conversion to paid); 3) registration-free anonymous use of 3 requests/day/IP (use it on the spot via curl / Playground, resets JST next-day 00:00).

How do I cancel?

Open the Stripe Customer Portal from the dashboard and cancel the subscription. After cancellation, API access remains valid through the end of the current month, and only the current month's usage is billed on the ¥3/billable-unit metered basis. Disabling, deleting, or rotating an API key suspends that key's use and is not cancellation of the Stripe subscription or paid use. Billing stops from the following month. There is no cancellation penalty or minimum usage period.

I lost my API key. Can I reissue it?

You can rotate it from the dashboard's "reissue key" button. The old key is disabled immediately, so update the client side before running.

How do I download an invoice (qualified invoice)?

You can download the PDF from the Stripe Customer Portal. jpcite's Qualified Invoice Issuer number is T8010001213708 (Bookyou株式会社).

How do I check API rate limits / usage caps?

Check the X-RateLimit-Remaining header on each response, or the usage graph in the dashboard. A monthly budget cap can be set optionally from the dashboard; when the cap is exceeded, requests stop with HTTP 503 + cap_reached:true.

How does MCP auto-auth (go.html) differ from a normal API key?

go.html is a dedicated flow that takes the confirmation code (e.g., ABCD-1234) presented by an MCP client such as Claude Desktop, ties it to Stripe Checkout, and automatically distributes the key to the MCP server. To obtain a normal API key (curl / Cursor / ChatGPT Custom GPT, etc.), use Pricing.

How do I configure Claude Desktop / Cursor / Cline / ChatGPT Custom GPT?

Integration guides are provided per client: Claude Desktop, Cursor, Cline, and ChatGPT Custom GPT.

Related pages

• security/ — security reporting channel, vulnerability disclosure policy.
• Legal stance — scope offered, areas where individual negotiation is not accepted.
• Data sources — per-source licenses and redistribution conditions.
• Terms of Service · Privacy · Specified Commercial Transactions Act.

jpcite does not perform work falling under Certified Public Tax Accountant Act §52 / Attorney Act §72. Outputs do not replace confirmation by a licensed professional (tax accountant, attorney, sharoshi, administrative scrivener). For the live Japanese support page, see the Japanese page. For an English product overview, see jpcite for foreign-invested entities.