Unison
Unison (Unison Home Ownership Investors, headquartered in San Francisco with a second office in Omaha, and formerly FirstREX) is a residential home-equity investment manager that pioneered the equity sharing agreement and institutionalized the Home Equity Investment (HEI) asset class. Its consumer products are the Equity Sharing Agreement — up to roughly $500,000 in cash with no monthly payments and no interest, in exchange for a share of the home's future change in value over a 30-year term — and the Equity Sharing Home Loan, a fixed below-market-rate, interest-only mortgage. Unison securitizes its agreements and sells them to institutional investors, including a $300 million equity sharing home loan purchase partnership with Carlyle. It reaches homeowners through www.unison.com and services existing agreements through the MyUnison portal at my.unison.com. Unison publishes no public developer program, no API reference, no SDKs and no machine-readable contract of any kind; the only agent-facing artifact it serves is an llms.txt at the site root.
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles Unison the way a machine reads it — 1 machine-readable artifact, 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 — Unison scores 11.3/100 (emerging), with a separate agent-readiness read of 0/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Why this profile is thin
Unison is a consumer home-equity investment manager whose only software products are the www.unison.com Webflow marketing site and the MyUnison agreement portal: its 308-URL sitemap contains no developer, API or docs page, /developers, /developer, /api and /docs all 404, api.unison.com, developer.unison.com and docs.unison.com do not resolve, the /partnership page is a business-development contact form with no technical integration surface, and the company GitHub org (github.com/firstrex, Unison's pre-rebrand name) holds only hiring mini-projects and forked style guides — so there is no developer program to profile, only a provider-published llms.txt.
This is an honest zero, not a gap in our research. Unison does not appear to expose an API, so there is nothing here for us to index and nothing for them to fix.
What we probed
https://www.unison.com/llms.txt→ HTTP 200https://www.unison.com/sitemap.xml→ HTTP 200https://www.unison.com/developers→ HTTP 404https://www.unison.com/api→ HTTP 404https://www.unison.com/openapi.json→ HTTP 404https://www.unison.com/.well-known/agent-card.json→ HTTP 404https://www.unison.com/.well-known/agent.json→ HTTP 404https://www.unison.com/.well-known/security.txt→ HTTP 404https://www.unison.com/partnership→ HTTP 200https://github.com/firstrex→ HTTP 200
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 2026-09-02 · rubric v0.18.0
Put this on your own site. The badge is drawn live from Unison's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/unison/"
title="Unison on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/unison.svg"
alt="Unison Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/unison/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/unison/"
title="Unison on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/unison/card.svg"
alt="Unison 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 Unison
Each block below is one kind of artifact we hold for Unison. 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.
Security Posture 1
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 Unison — 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.
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/unison · machine-readable index on apis.io
This is an independent, third-party profile of Unison, 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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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.