Reference & Lookup Data · Integration
Japan Corporate Numbers
Add Japan Corporate Numbers to your product for your customers, and give your AI agents governed access to it.
Embed a Japan Corporate Numbers integration so your customers can verify Japanese company records from inside your product instead of copying them from a browser tab. Each customer uses their own credentials, so lookups are attributable per tenant and every call is logged. fastn handles authentication, pagination, and API upkeep, and reads are throttled so a bulk verification run does not exhaust a customer's allowance.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let customers look up a corporate number and pull back the registered company name and address during onboarding.
Verify a company record your customer already holds against the published registry before it is saved.
Search by company name to resolve a corporate number when a user only knows the trading name.
Read change history so your product can flag a company whose registered details have moved.
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
An agent resolves a company's corporate number before answering a question about the account.
An agent checks a registered name and address against the record in your product and reports mismatches.
An agent enriches a batch of accounts within governed permissions, with every lookup logged per tenant.
Example prompt
Look up the corporate number for this company name and tell me whether the registered address matches what we hold.
Set up Japan Corporate Numbers in 4 steps
- 01Open the Japan Corporate Numbers connector from your fastn dashboard.
- 02Have each customer supply their own registry credentials.
- 03Map the company fields your product stores, then enable the lookup actions.
- 04Call them from your product, or expose them to an agent through the MCP server.
Why teams use the Japan Corporate Numbers integration
What you get by embedding it with fastn instead of building it yourself.
- Ship a Japan Corporate Numbers integration without building it. Your customers connect their own Japan Corporate Numbers account inside your product and work their lookups, results and reports there, with no per-customer code on your side.
- Handle the part that actually costs time: these are metered read sources, so an uncached lookup on every page view burns the customer's allowance. fastn owns the auth, token refresh, rate limits, pagination and breaking-change fixes, so a Japan Corporate Numbers update is not your on-call problem.
- One integration serves your product and your agents. The same governed Japan Corporate Numbers connection powers in-product features and gives AI agents scoped, audited access, so you answer questions from an authoritative outside source without holding that data yourself without wiring it twice.
Used by these teams
Compare with
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Salesforce
NetSuiteOften used alongside
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BoxJapan Corporate Numbers integration FAQ
How do I add a Japan Corporate Numbers integration to my product?
Enable the Japan Corporate Numbers connector in your fastn dashboard, then let each customer authenticate their own Japan Corporate Numbers account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no Japan Corporate Numbers client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own Japan Corporate Numbers account?
Yes. Every connection is scoped to the individual customer, so each authorises their own Japan Corporate Numbers account and only ever sees their own lookups, results and reports. That per-tenant isolation is the point of an embedded integration: you support the long tail of customer setups without maintaining an integration per customer.
Can AI agents use this Japan Corporate Numbers integration?
Yes. The same connection is exposed to your agents through the fastn MCP gateway, with permissions scoped per tenant and every call audited. An agent resolves a company's corporate number before answering a question about the account.
Who maintains the Japan Corporate Numbers integration?
fastn does. When Japan Corporate Numbers changes an endpoint, deprecates a field or alters its auth, the fix lands in the connector rather than in your backlog, and your customers' connections keep working.
Whose credentials does a Japan Corporate Numbers lookup run under?
Each customer's own. Quota and cost land on the customer that caused them rather than on a shared key you have to meter and re-bill, and one heavy customer cannot exhaust another's allowance.
How should Japan Corporate Numbers results be cached?
Per tenant, with a window that matches how fast the underlying data actually moves. Japan Corporate Numbers is a read source rather than a system of record, so the same query returns the same answer until the source changes, and caching is the difference between a sustainable integration and one that exhausts a customer's allowance on a busy page.
What can I build with the Japan Corporate Numbers integration?
A common starting point: look up a corporate number and pull back the registered company name and address during onboarding. Teams also use it for the other use cases listed above, and expose it to agents for governed reads and writes.
How much does the Japan Corporate Numbers integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding Japan Corporate Numbers does not change your per-connector cost. You can start free with 3 connected accounts.
Add Japan Corporate Numbers to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.