LendInvest

LendInvest is a London-based fintech property finance platform and mortgage lender, founded in 2013 after spinning out of Montello Bridging Finance, and listed on the London Stock Exchange AIM market under the ticker LINV since July 2021. It originates and services short-term bridging finance, property development finance, buy-to-let and residential mortgages for UK intermediaries, brokers, property developers, landlords and investors, and runs a parallel capital business that lets individual, corporate and institutional investors put money into secured UK property loans. The company distributes almost entirely through mortgage intermediaries via its Mortgages Portal, and was the first UK fintech to securitise its own buy-to-let loan book. LendInvest publishes no public developer API, developer portal or SDKs; its broker and borrower integrations run through hosted portals rather than a documented public API surface.

LendInvest is profiled on the APIs.io network. Tagged areas include Company, Fintech, Lending, Mortgage, and Property Finance.

LendInvest’s developer surface includes engineering blog, support, signup flow, authentication, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

21.6/100 emerging ▬ flat Agent 11/100 agent aware Heartbeat 50/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

0 APIs

Company Fintech Lending Mortgage Property Finance Real Estate Financial Services United Kingdom

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 21.6/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 5.8 / 17

Operational Transparency 0.3 / 11

Contract Governance 1.9 / 10

Discoverability 4.7 / 9

Regulatory Posture 5.1 / 15

Agent readiness — 11/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 19.0 — up to +16.2 composite points
Access Clarity scores 34.2 — up to +13.2 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/lendinvest/apis.yml: open an issue on github.com/api-evangelist/lendinvest to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Consumer Lending Licensing (UK, US, Canada credit licence registers)	regulated	19.2 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Dynamic Client Registration

measured — observed by APIs.io (published)

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Lendinvest Authentication

1 scheme

SECURITY

Lendinvest Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Lendinvest Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

OpenIDConnect

OpenIDConnect

Source (apis.yml)

aid: lendinvest
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - scopes
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/lendinvest.png
name: LendInvest
description: LendInvest is a London-based fintech property finance platform and mortgage lender, founded in 2013 after spinning
  out of Montello Bridging Finance, and listed on the London Stock Exchange AIM market under the ticker LINV since July 2021.
  It originates and services short-term bridging finance, property development finance, buy-to-let and residential mortgages
  for UK intermediaries, brokers, property developers, landlords and investors, and runs a parallel capital business that
  lets individual, corporate and institutional investors put money into secured UK property loans. The company distributes
  almost entirely through mortgage intermediaries via its Mortgages Portal, and was the first UK fintech to securitise its
  own buy-to-let loan book. LendInvest publishes no public developer API, developer portal or SDKs; its broker and borrower
  integrations run through hosted portals rather than a documented public API surface.
url: https://raw.githubusercontent.com/api-evangelist/lendinvest/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- atomico
x-tier: profiled
x-tier-reason: enriched-no-public-api
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Fintech
- Lending
- Mortgage
- Property Finance
- Real Estate
- Financial Services
- United Kingdom
tags_raw:
- Company
- Fintech
- Lending
- Mortgages
- Property Finance
- Real Estate
- Financial Services
- United Kingdom
- Real-Estate
- Financial-Services
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.lendinvest.com
- type: Blog
  url: https://www.lendinvest.com/blog/
- type: Support
  url: https://www.lendinvest.com/contact/
- type: SignUp
  url: https://customerportal.lendinvest.com/s/brokerregistrationform
- type: Login
  url: https://customerportal.lendinvest.com/s/
- type: TermsOfService
  url: https://www.lendinvest.com/terms-and-conditions/user-agreement/
- type: PrivacyPolicy
  url: https://www.lendinvest.com/terms-and-conditions/privacy-policy/
- type: GitHubOrganization
  url: https://github.com/lend-invest
- type: Packages
  url: packages/lendinvest-packages.yml
- type: WellKnown
  url: well-known/lendinvest-well-known.yml
- type: Authentication
  url: authentication/lendinvest-authentication.yml
- type: OpenIDConnect
  url: well-known/lendinvest-openid-configuration.json
- type: OAuthScopes
  url: scopes/lendinvest-scopes.yml
- type: Conformance
  url: conformance/lendinvest-conformance.yml
- type: DomainSecurity
  url: security/lendinvest-domain-security.yml
- type: LLMsTxt
  url: llms/lendinvest-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

LendInvest API — frequently asked questions

How do I authenticate with the LendInvest API?

LendInvest documents its authentication (1 scheme). The details are profiled on APIs.io as Lendinvest Authentication.

Is the LendInvest API ready for AI agents?

LendInvest has a Kin Score of 21.6 out of 100 (emerging) and an Agent Readiness score of 10.8 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

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get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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