Mark43

Mark43 is a cloud-native public safety software company whose platform unifies computer-aided dispatch (CAD), records management (RMS), first-responder mobile applications, evidence and property management, and analytics for law enforcement and public safety agencies. Serving more than 300 federal, state, and local agencies, Mark43 exposes a Partnerships (External) API that lets approved location providers, community-engagement software, and other law-enforcement technologies integrate directly with an agency's Mark43 tenant. The REST API provides endpoints for reports, persons, evidence and chain-of-custody, attachments, CAD events and configuration, warrants, tasks, users, vehicles, and E911 data, secured with HTTP Basic authentication using agency-issued API tokens and returning a consistent JSON response envelope.

Mark43 publishes 15 API contracts indexed on the APIs.io network, including Associated Records API, Attachments API, CAD Configuration API, and 12 more. Tagged areas include Company, Public Safety, Law Enforcement, Records Management, and Computer-Aided Dispatch.

The Mark43 catalog on APIs.io includes 1 Spectral governance ruleset.

Mark43’s developer surface includes engineering blog, documentation, API reference, authentication, and 14 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

30.3/100 thin ▬ flat Agent 17/100 agent aware Front door AI 4/6 moderate Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 4 Agent Skills

Company Public Safety Law Enforcement Records ManagementComputer-Aided DispatchCADRMSGovTech Evidence Management Government

Kin Score

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

Composite quality — 30.3/100 · thin

Contract Quality 2.4 / 19

Developer Ergonomics 6.3 / 15

Access Clarity 3.2 / 15

Operational Transparency 0.3 / 10

Contract Governance 2.9 / 9

Discoverability 5.5 / 8

Regulatory Posture 3.5 / 15

Create-or-Update Ergonomics 2.2 / 10

Agent readiness — 17/100 · agent aware

Machine-Readable Contract 18 / 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 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 0 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):

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
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

10 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 12.6 — up to +21.9 composite points
Access Clarity scores 21.1 — up to +15.8 composite points
Operational Transparency scores 2.6 — up to +12.7 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/mark43/apis.yml: open an issue on github.com/api-evangelist/mark43 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
Government Cloud (FedRAMP, GovRAMP, G-Cloud)	mixed	47.6	-	-
Public Safety and NG911 (first-responder apps, CJIS, 911)	mixed	47.6	-	-
UK G-Cloud Suppliers (UK public-sector cloud procurement)	mixed	47.6	-	-

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 15

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

Mark43 Associated Records API

The Associated Records API from Mark43 — 2 operation(s) for associated records.

Mark43 Attachments API

The Attachments API from Mark43 — 5 operation(s) for attachments.

Mark43 CAD Configuration API

The CAD Configuration API from Mark43 — 4 operation(s) for cad configuration.

Mark43 CAD Events API

The CAD Events API from Mark43 — 10 operation(s) for cad events.

Mark43 CAD Tickets API

The CAD Tickets API from Mark43 — 1 operation(s) for cad tickets.

Mark43 Cases API

The Cases API from Mark43 — 3 operation(s) for cases.

Mark43 E911 API

The E911 API from Mark43 — 2 operation(s) for e911.

Mark43 Evidence API

The Evidence API from Mark43 — 5 operation(s) for evidence.

Mark43 GPS API

The GPS API from Mark43 — 1 operation(s) for gps.

Mark43 Persons API

The Persons API from Mark43 — 8 operation(s) for persons.

Mark43 Reports API

The Reports API from Mark43 — 38 operation(s) for reports.

Mark43 Tasks API

The Tasks API from Mark43 — 1 operation(s) for tasks.

Mark43 Users API

The Users API from Mark43 — 7 operation(s) for users.

Mark43 Vehicles API

The Vehicles API from Mark43 — 1 operation(s) for vehicles.

Mark43 Warrants API

The Warrants API from Mark43 — 5 operation(s) for warrants.

Scroll for all 15

Open Collections 15

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Mark43 Partnerships Associated Records API

OPEN COLLECTION

Mark43 Partnerships Associated Records Attachments API

OPEN COLLECTION

Mark43 Partnerships Associated Records CAD Configuration API

OPEN COLLECTION

Mark43 Partnerships Associated Records CAD Events API

OPEN COLLECTION

Mark43 Partnerships Associated Records CAD Tickets API

OPEN COLLECTION

Mark43 Partnerships Associated Records Cases API

OPEN COLLECTION

Mark43 Partnerships Associated Records E911 API

OPEN COLLECTION

Mark43 Partnerships Associated Records Evidence API

OPEN COLLECTION

Mark43 Partnerships Associated Records GPS API

OPEN COLLECTION

Mark43 Partnerships Associated Records Persons API

OPEN COLLECTION

Mark43 Partnerships Associated Records Reports API

OPEN COLLECTION

Mark43 Partnerships Associated Records Tasks API

OPEN COLLECTION

Mark43 Partnerships Associated Records Users API

OPEN COLLECTION

Mark43 Partnerships Associated Records Vehicles API

OPEN COLLECTION

Mark43 Partnerships Associated Records Warrants API

OPEN COLLECTION

Scroll for all 15

Agent Skills 4

Packaged agent skills for driving this provider's APIs from an AI assistant.

Ingest a CAD event into Mark43

AGENT SKILL

Search and retrieve a person in Mark43

AGENT SKILL

Submit an arrest report to Mark43

AGENT SKILL

Track evidence chain of custody in Mark43

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Mark43 API Rules

47 rules · 45 errors 1 warnings 1 info

SPECTRAL

Security Posture 3

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

Mark43 Authentication

http · 1 scheme

SECURITY

Mark43 Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Mark43 Trust Center

SOC 2, ISO 27001, FedRAMP, GDPR, CSA STAR, FIPS 140

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

DataModel

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

Authentication

Compliance

DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

Company 2

The organization behind the API

Blog

Blog

Website

Website

Source (apis.yml)

aid: mark43
name: Mark43
description: Mark43 is a cloud-native public safety software company whose platform unifies computer-aided dispatch (CAD),
  records management (RMS), first-responder mobile applications, evidence and property management, and analytics for law enforcement
  and public safety agencies. Serving more than 300 federal, state, and local agencies, Mark43 exposes a Partnerships (External)
  API that lets approved location providers, community-engagement software, and other law-enforcement technologies integrate
  directly with an agency's Mark43 tenant. The REST API provides endpoints for reports, persons, evidence and chain-of-custody,
  attachments, CAD events and configuration, warrants, tasks, users, vehicles, and E911 data, secured with HTTP Basic authentication
  using agency-issued API tokens and returning a consistent JSON response envelope.
url: https://raw.githubusercontent.com/api-evangelist/mark43/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- general-catalyst
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - 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
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
image: https://mark43.com/wp-content/uploads/2021/04/cropped-Mark43_logo_horizontal_black-1-1-32x32.png
tags:
- Company
- Public Safety
- Law Enforcement
- Records Management
- Computer-Aided Dispatch
- CAD
- RMS
- GovTech
- Evidence Management
- Government
apis:
- aid: mark43:mark43-associated-records-api
  name: Mark43 Associated Records API
  description: The Associated Records API from Mark43 — 2 operation(s) for associated records.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - Associated Records
  properties:
  - type: OpenAPI
    url: openapi/mark43-associated-records-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-attachments-api
  name: Mark43 Attachments API
  description: The Attachments API from Mark43 — 5 operation(s) for attachments.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - Attachments
  properties:
  - type: OpenAPI
    url: openapi/mark43-attachments-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-cad-configuration-api
  name: Mark43 CAD Configuration API
  description: The CAD Configuration API from Mark43 — 4 operation(s) for cad configuration.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - CAD Configuration
  properties:
  - type: OpenAPI
    url: openapi/mark43-cad-configuration-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-cad-events-api
  name: Mark43 CAD Events API
  description: The CAD Events API from Mark43 — 10 operation(s) for cad events.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - CAD Events
  properties:
  - type: OpenAPI
    url: openapi/mark43-cad-events-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-cad-tickets-api
  name: Mark43 CAD Tickets API
  description: The CAD Tickets API from Mark43 — 1 operation(s) for cad tickets.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - CAD Tickets
  properties:
  - type: OpenAPI
    url: openapi/mark43-cad-tickets-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-cases-api
  name: Mark43 Cases API
  description: The Cases API from Mark43 — 3 operation(s) for cases.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - Cases
  properties:
  - type: OpenAPI
    url: openapi/mark43-cases-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-e911-api
  name: Mark43 E911 API
  description: The E911 API from Mark43 — 2 operation(s) for e911.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - E911
  properties:
  - type: OpenAPI
    url: openapi/mark43-e911-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-evidence-api
  name: Mark43 Evidence API
  description: The Evidence API from Mark43 — 5 operation(s) for evidence.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - Evidence
  properties:
  - type: OpenAPI
    url: openapi/mark43-evidence-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-gps-api
  name: Mark43 GPS API
  description: The GPS API from Mark43 — 1 operation(s) for gps.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - GPS
  properties:
  - type: OpenAPI
    url: openapi/mark43-gps-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-persons-api
  name: Mark43 Persons API
  description: The Persons API from Mark43 — 8 operation(s) for persons.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - Persons
  properties:
  - type: OpenAPI
    url: openapi/mark43-persons-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-reports-api
  name: Mark43 Reports API
  description: The Reports API from Mark43 — 38 operation(s) for reports.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - Reports
  properties:
  - type: OpenAPI
    url: openapi/mark43-reports-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-tasks-api
  name: Mark43 Tasks API
  description: The Tasks API from Mark43 — 1 operation(s) for tasks.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - Task
  tags_raw:
  - Tasks
  properties:
  - type: OpenAPI
    url: openapi/mark43-tasks-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-users-api
  name: Mark43 Users API
  description: The Users API from Mark43 — 7 operation(s) for users.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/mark43-users-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-vehicles-api
  name: Mark43 Vehicles API
  description: The Vehicles API from Mark43 — 1 operation(s) for vehicles.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - Vehicles
  properties:
  - type: OpenAPI
    url: openapi/mark43-vehicles-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
- aid: mark43:mark43-warrants-api
  name: Mark43 Warrants API
  description: The Warrants API from Mark43 — 5 operation(s) for warrants.
  humanURL: https://developers.mark43.com/
  baseURL: https://department.mark43.com/partnerships/api
  tags:
  - Warrants
  properties:
  - type: OpenAPI
    url: openapi/mark43-warrants-api-openapi.yml
  - type: Documentation
    url: https://developers.mark43.com/
  - type: APIReference
    url: https://developers.mark43.com/
  - type: Authentication
    url: authentication/mark43-authentication.yml
  - type: Conventions
    url: conventions/mark43-conventions.yml
  - type: ErrorCatalog
    url: errors/mark43-problem-types.yml
  - type: DataModel
    url: data-model/mark43-data-model.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://mark43.com/platform/data-platform/insights/
  type: Blog
- type: TrustCenter
  url: security/mark43-trust-center.yml
- type: DeveloperPortal
  url: https://developers.mark43.com/
- type: Documentation
  url: https://developers.mark43.com/
- type: APIReference
  url: https://developers.mark43.com/
- type: Authentication
  url: authentication/mark43-authentication.yml
- type: TermsOfService
  url: https://developers.mark43.com/#developer-terms-of-use-agreement
- type: Website
  url: https://mark43.com/
- type: Integrations
  url: https://mark43.com/partners-integrations/
- type: GitHubOrganization
  url: https://github.com/mark43
- type: Conventions
  url: conventions/mark43-conventions.yml
- type: ErrorCatalog
  url: errors/mark43-problem-types.yml
- type: DataModel
  url: data-model/mark43-data-model.yml
- type: Conformance
  url: conformance/mark43-conformance.yml
- type: X-MCPServerCandidate
  url: mcp/mark43-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/mark43-llms.txt
- type: Compliance
  url: https://trust.mark43.com/
- type: DomainSecurity
  url: security/mark43-domain-security.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 16
  pass: local-v1

Mark43 API — frequently asked questions

Does Mark43 have an API?

Yes. APIs.io lists 15 APIs from Mark43, including Mark43 Associated Records API, Mark43 Attachments API and Mark43 CAD Configuration API, and 12 more.

Is there an OpenAPI specification for the Mark43 API?

Yes. APIs.io indexes 15 OpenAPI specifications for Mark43, each linked for download from this page.

How do I authenticate with the Mark43 API?

Mark43 uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Mark43 Authentication.

Is the Mark43 API ready for AI agents?

Mark43 has a Kin Score of 30.3 out of 100 (thin) and an Agent Readiness score of 16.7 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
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.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/mark43"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/mark43/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/mark43/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

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A second provider on the same verified email joins the account you already have.