Mortgage Industry Standards Maintenance Organization (MISMO)

Mortgage Industry Standards Maintenance Organization (MISMO) is a nonprofit association that develops and maintains data standards for the mortgage finance industry. It provides a comprehensive reference model, logical data models, XML schemas, and implementation guides that enable consistent data exchange among lenders, servicers, investors, and technology providers. MISMO’s resources support regulatory compliance, improve operational efficiency, and foster innovation across the mortgage ecosystem.

Mortgage Industry Standards Maintenance Organization (MISMO) is listed with 1 API on the APIs.io network. Tagged areas include Company, Mortgage, Standards, Data, and Finance.

Mortgage Industry Standards Maintenance Organization (MISMO)’s developer surface includes changelog, signup flow, documentation, and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

17.2/100 emerging Agent 11/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API

Company Mortgage Standards Data Finance

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 17.2/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 1.6 / 17

Access Clarity 5.8 / 17

Operational Transparency 1.7 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.9 / 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 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

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 9.5 — up to +18.1 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/mortgage-industry-standards-maintenance-organization-mismo/apis.yml: open an issue on github.com/api-evangelist/mortgage-industry-standards-maintenance-organization-mismo 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 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

MISMO API

MISMO provides data standards and XML schemas for mortgage industry; documentation is available as PDF but no machine-readable API contract was found.

Security Posture 1

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

Mortgage Industry Standards Maintenance Organization Mismo Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: mortgage-industry-standards-maintenance-organization-mismo
name: Mortgage Industry Standards Maintenance Organization (MISMO)
image: https://www.mismo.org/images/mismolibraries/active/mismo-logo-high-res_50percent.png?sfvrsn=97977f5f_1
description: Mortgage Industry Standards Maintenance Organization (MISMO) is a nonprofit association that develops and maintains
  data standards for the mortgage finance industry. It provides a comprehensive reference model, logical data models, XML
  schemas, and implementation guides that enable consistent data exchange among lenders, servicers, investors, and technology
  providers. MISMO’s resources support regulatory compliance, improve operational efficiency, and foster innovation across
  the mortgage ecosystem.
url: https://raw.githubusercontent.com/api-evangelist/mortgage-industry-standards-maintenance-organization-mismo/refs/heads/main/apis.yml
x-type: company
x-source: harvest:vc-portfolio
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-26 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-26'
modified: '2026-10-26'
tags:
- Company
- Mortgage
- Standards
- Data
- Finance
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: ChangeLog
  url: changelog/mortgage-industry-standards-maintenance-organization-mismo-changelog.yml
- type: WellKnown
  url: well-known/mortgage-industry-standards-maintenance-organization-mismo-well-known.yml
- type: Hosts
  url: hosts/mortgage-industry-standards-maintenance-organization-mismo-hosts.yml
- type: Vendors
  url: vendors/mortgage-industry-standards-maintenance-organization-mismo-vendors.yml
- type: TermsOfService
  url: https://www.mismo.org/terms
- type: SignUp
  url: https://www.mismo.org/register-for-a-summit
- type: PrivacyPolicy
  url: https://www.mismo.org/privacy-policy
- type: Documentation
  url: https://www.mismo.org/docs/mismolibraries/active-(documents/getting-started-with-the-mismo-api-toolkit.pdf?sfvrsn=15289242_3
- type: ChangeLog
  url: https://www.mismo.org/standards-resources/life-of-loan/release-notes
- type: DomainSecurity
  url: security/mortgage-industry-standards-maintenance-organization-mismo-domain-security.yml
- type: Website
  url: https://www.mismo.org
apis:
- name: MISMO API
  description: MISMO provides data standards and XML schemas for mortgage industry; documentation is available as PDF but
    no machine-readable API contract was found.
  humanURL: https://www.mismo.org/docs/mismolibraries/active-(documents/getting-started-with-the-mismo-api-toolkit.pdf?sfvrsn=15289242_3
  baseURL: null
  aid: mortgage-industry-standards-maintenance-organization-mismo:mismo-api
x-coverage:
  state: unreadable
  reason: pdf-only-docs
  detail: Documentation is provided as PDF files with no machine‑readable OpenAPI/AsyncAPI spec.
  evidence:
  - url: https://www.mismo.org/docs/mismolibraries/active-(documents/getting-started-with-the-mismo-api-toolkit.pdf?sfvrsn=15289242_3
    status: 200
  checked: '2026-10-26'
x-enrichment:
  date: '2026-10-26'
  status: enriched
  artifacts_added: 9
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Mortgage Industry Standards Maintenance Organization (MISMO) API — frequently asked questions

Does Mortgage Industry Standards Maintenance Organization (MISMO) have an API?

Yes. APIs.io lists 1 API from Mortgage Industry Standards Maintenance Organization (MISMO), including MISMO API.

Is the Mortgage Industry Standards Maintenance Organization (MISMO) API ready for AI agents?

Mortgage Industry Standards Maintenance Organization (MISMO) has a Kin Score of 17.2 out of 100 (emerging) and an Agent Readiness score of 10.8 (agent-aware), scored by API Evangelist on 2026-10-31.

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