AI & Models · Integration
Rossum
Add Rossum to your product for your customers, and give your AI agents governed access to it.
Rossum extracts structured data from business documents such as invoices, purchase orders and delivery notes, and the thing that makes it usable in a product is that every extracted value arrives with a confidence score and a pointer back to where on the page it was found. Documents land in a queue whose schema defines the fields to pull, low confidence values route to a human validation screen, and the annotation is only final once it is confirmed. Each customer authorises their own Rossum organisation, so their pages, their queues and their usage are billed and rate limited to them rather than to a shared key you would have to meter and re-bill. Every call is logged per tenant with the document and the values returned, which matters because an extraction cannot be reconstructed from the request alone. fastn stores the per-organisation credentials, retries failed submissions and tracks the API.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let customers connect their own Rossum organisation so documents your product receives are extracted under their account and their usage.
Submit a document to the queue whose schema matches it, then read the extracted fields and their confidence scores back into your workflow.
Hold a document for human validation when confidence is low, and continue your workflow once the annotation is confirmed.
Support customers whose document types and field schemas differ, queue by queue, as configuration rather than a release on your side.
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
An agent submits a document and reports which fields came back below the confidence threshold you set.
An agent reads a confirmed annotation and uses the extracted totals to ground its answer, with the call logged per tenant.
An agent reacts to a confirmed document and moves the extracted values into the next step within scoped permissions.
Example prompt
Extract the supplier, invoice number and total from this document and tell me which fields need a human to check.
Set up Rossum in 4 steps
- 01Enable the Rossum connector in your fastn dashboard.
- 02Have each customer authorise their own Rossum organisation, so extraction usage and rate limits land on them.
- 03Map the queues and schema fields your product reads, and set the confidence threshold at which a document waits for human validation.
- 04Call it from your product and expose the same connection to your agents through the MCP gateway.
Why teams use the Rossum integration
What you get by embedding it with fastn instead of building it yourself.
- Ship a Rossum integration without building it. Your customers connect their own Rossum account inside your product and work their models, requests and outputs there, with no per-customer code on your side.
- Handle the part that actually costs time: per-customer keys, quotas and cost attribution matter more than schema here, because every call is billed. fastn owns the auth, token refresh, rate limits, pagination and breaking-change fixes, so a Rossum update is not your on-call problem.
- One integration serves your product and your agents. The same governed Rossum connection powers in-product features and gives AI agents scoped, audited access, so you give your product and your agents a model call each customer pays for themselves without wiring it twice.
Used by these teams
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AmplitudeRossum integration FAQ
How do I add a Rossum integration to my product?
Enable the Rossum connector in your fastn dashboard, then let each customer authenticate their own Rossum account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no Rossum client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own Rossum account?
Yes. Every connection is scoped to the individual customer, so each authorises their own Rossum account and only ever sees their own models, requests and outputs. 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 Rossum 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 submits a document and reports which fields came back below the confidence threshold you set.
Who maintains the Rossum integration?
fastn does. When Rossum 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 Rossum API key and quota does each call use?
Each customer authorises their own Rossum account, so usage, rate limits and cost land on the customer that caused them. You are not metering a shared key and re-billing it, and one heavy customer cannot exhaust another's quota.
Are inputs and outputs auditable?
Yes. Every call is logged per tenant with the call, the input and the result, so an output can be traced back to what produced it. That matters more here than in most integrations, because a generated answer or an extracted field cannot be reconstructed from the request alone.
What can I build with the Rossum integration?
A common starting point: connect their own Rossum organisation so documents your product receives are extracted under their account and their usage. 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 Rossum integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding Rossum does not change your per-connector cost. You can start free with 3 connected accounts.
Add Rossum to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.