Reference & Lookup Data · Integration
APIVerve
Add APIVerve to your product for your customers, and give your AI agents governed access to it.
APIVerve is a single-key gateway in front of a large catalogue of small utility APIs, so one credential covers everything from DNS lookups and email validation to currency and geocoding, addressed as api.apiverve.com/v1/<endpoint> with the key in an x-api-key header. The catalogue is the integration: each endpoint has its own query parameters, but the envelope is consistent, which makes it practical to wire many lookups through one connector rather than one connector per data source. Usage is metered in credits shared across every endpoint rather than per-API rate limits, so a chatty validation loop quietly starves an unrelated lookup later in the day and credit accounting belongs in your own telemetry. The API sits behind Cloudflare, so clients that do not send a normal user agent or that come from blocked ranges get an HTML challenge page with a 403 instead of a JSON error, which is worth distinguishing from a genuine authorisation failure in your error handling. fastn holds each customer's APIVerve key on their own connection and keeps the endpoint list current as the catalogue changes.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let a customer connect their own APIVerve key so enrichment runs on their credits rather than a shared pool
Validate email addresses and phone numbers at the point of entry in your signup and import flows
Enrich company records with domain and DNS detail without contracting a separate data vendor
Give admins a per-tenant view of credit consumption so a runaway import is visible before it exhausts the balance
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
Ask an agent to validate a list of contact email addresses and report which are undeliverable
Have an agent look up DNS and certificate detail for a domain a tenant is onboarding, audited per tenant
Let an agent enrich a batch of records and report how many credits the run consumed
Example prompt
Are the email addresses on this week's new signups valid, and which domains look disposable?
Set up APIVerve in 4 steps
- 01Enable the APIVerve connector from your fastn dashboard.
- 02Have each customer authorise their own APIVerve account, so calls run under their credentials rather than a shared key.
- 03Decide which lookups, results and reports your product needs, map those fields, then enable the actions and triggers you want.
- 04Call it from your product and expose it to your agents through the same governed connection.
Why teams use the APIVerve integration
What you get by embedding it with fastn instead of building it yourself.
- Ship an APIVerve integration without building it. Your customers connect their own APIVerve 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 an APIVerve update is not your on-call problem.
- One integration serves your product and your agents. The same governed APIVerve 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
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SnowflakeAPIVerve integration FAQ
How do I add an APIVerve integration to my product?
Enable the APIVerve connector in your fastn dashboard, then let each customer authenticate their own APIVerve account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no APIVerve client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own APIVerve account?
Yes. Every connection is scoped to the individual customer, so each authorises their own APIVerve 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 APIVerve integration?
Yes. The same connection is exposed to your agents through the fastn MCP gateway, with permissions scoped per tenant and every call audited. Ask an agent to validate a list of contact email addresses and report which are undeliverable
Who maintains the APIVerve integration?
fastn does. When APIVerve 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 an APIVerve 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 APIVerve results be cached?
Per tenant, with a window that matches how fast the underlying data actually moves. APIVerve 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 APIVerve integration?
A common starting point: let a customer connect their own APIVerve key so enrichment runs on their credits rather than a shared pool. 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 APIVerve integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding APIVerve does not change your per-connector cost. You can start free with 3 connected accounts.
Add APIVerve to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.