Interhyp
Interhyp AG is Germany's leading platform for residential mortgage financing (Baufinanzierung), connecting homebuyers and partners with the best financing options by comparing offers from more than 500 loan partners. Through its Developer Studio (developer.ehyphome.de) Interhyp publishes a partner-facing REST API surface — most notably the Submission API — that lets brokers, referrers and platforms integrate mortgage submission workflows, financing applications, documents, logbooks and pre-submission checks directly into their own applications. The API is designed "API First" and "Mobile First", secured with OAuth 2.0 JWT bearer tokens plus an Api-Key header, uses cursor-based pagination, RFC 7807 problem+json error responses and traceId request tracing. Interhyp is part of the ING Group and operates the broker brand Prohyp.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Interhyp the way a machine reads it — 19 machine-readable artifacts across 2 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Interhyp scores 43.6/100 (developing), with a separate agent-readiness read of 33/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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title="Interhyp on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/interhyp/card.svg"
alt="Interhyp Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Interhyp
Each block below is one kind of artifact we hold for Interhyp. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 8
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Interhyp commands API
provides endpoints to access to commands sent to the submission API
Interhyp documents API
access to submission documents
Interhyp financing-application API
provides endpoints for financing application resources not associate to a specific financing partner
Interhyp info API
provides basic info about service status and version of the submission API specs used
Interhyp logbook API
provides endpoints to access submission logbook
Interhyp pre-submission-checks API
provides endpoints for pre-submission resources associated with a specific financing partner
Interhyp protocol API
access to submission protocol
Interhyp submissions API
provides endpoints for submission resources associated with a specific financing partner
Scroll within the panel for all 8 ·
Open Collections 9
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONInterhyp Submission commands API
OPEN COLLECTIONInterhyp Submission commands documents API
OPEN COLLECTIONInterhyp Submission commands financing-application API
OPEN COLLECTIONInterhyp Submission commands info API
OPEN COLLECTIONInterhyp Submission commands logbook API
OPEN COLLECTIONInterhyp Submission commands pre-submission-checks API
OPEN COLLECTIONInterhyp Submission commands protocol API
OPEN COLLECTIONInterhyp Submission commands submissions API
OPEN COLLECTIONScroll within the panel for all 9 ·
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for Interhyp — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 4
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 7 ·
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/interhyp · machine-readable index on apis.io
This is an independent, third-party profile of Interhyp, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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