Sign In Enterprise

Sign In Enterprise (formerly Traction Guest, now part of Sign In Solutions) is an enterprise visitor management system (VMS) used by security-conscious organizations in aerospace and defense, government, manufacturing, pharmaceuticals, and technology. Its REST API — branded "Guest Connect" and published as the Sign In Solutions VMS API — lets developers retrieve and modify visitor and employee sign-in data to extend workflows: managing hosts, invites, sign-ins, registrations, locations, capacities, parking, group visits, watchlists, email templates, and audit logs. The API is REST over JSON, secured with OAuth 2.0 / OpenID Connect scoped access, and supports idempotent writes via an Idempotency-Key header.

Sign In Enterprise publishes 14 APIs on the APIs.io network, including Batches API, Capacities API, GroupVisits API, and 11 more. Tagged areas include Company, Vertical Software, Visitor Management, Physical Security, and Workplace Experience.

The Sign In Enterprise catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Sign In Enterprise’s developer surface includes documentation, API reference, pricing, engineering blog, support, authentication, and 25 more developer resources.

🌐 Visit website 📡 Source on GitHub

50.3/100 developing ▬ flat Agent 45/100 agent native Front door AI 3/6 light saas Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

AccessSelf serve

1 APIs

Company Vertical Software Visitor Management Physical Security Workplace Experience Identity Compliance Access Control

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 50.3/100 · developing

Contract Quality 11.2 / 19

Developer Ergonomics 8.1 / 15

Access Clarity 8.1 / 15

Operational Transparency 1.0 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 5.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 45/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 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 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

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 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/.

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 github.com/api-evangelist/sign-in-enterprise: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 14

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

Sign In Enterprise Batches API

All endpoints related to Batch-type actions.

Sign In Enterprise Capacities API

All endpoints related to Capacity management.

Sign In Enterprise GroupVisits API

All endpoints related to Group Visits (Appointments).

Sign In Enterprise Hosts API

All endpoints relating to the Host model

Sign In Enterprise Invites API

All endpoints relating to the Invite model

Sign In Enterprise Locations API

All endpoints relating to the Location model, aka. DeviceConfigurations

Sign In Enterprise Packages API

All endpoints relating to the Packages model

Sign In Enterprise Parking API

All endpoint related to the parking feature, including the ParkingLot and ParkingStallRange models

Sign In Enterprise Registrations API

All endpoints related to Registrations.

Sign In Enterprise Users API

All endpoints related to the User model

Sign In Enterprise Watchlists API

All endpoint related to the Watchlist model

Sign In Enterprise Audit Logs API

All endpoints related to the AuditLog model.

Sign In Enterprise Email Templates API

All endpoints relating to operations for the EmailTemplate model

Sign In Enterprise Sign Ins API

All endpoints related to models that track signing in and out of a location. E.g., Signin, Signout, SigninAcknowledgment models

Scroll for all 14

Open Collections 15

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

API Collection

OPEN COLLECTION

Sign In Solutions VMS AuditLogs API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs Batches API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs Capacities API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs EmailTemplates API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs GroupVisits API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs Hosts API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs Invites API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs Locations API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs Packages API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs Parking API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs Registrations API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs Signins API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs Users API

OPEN COLLECTION

Sign In Solutions VMS AuditLogs Watchlists API

OPEN COLLECTION

Scroll for all 15

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Sign In Enterprise Webhooks

ASYNCAPI

Security Posture 3

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

Sign In Enterprise Authentication

openIdConnect/oauth2 · 1 scheme

SECURITY

Sign In Enterprise Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Sign In Enterprise Trust Center

SOC 2, ISO 27001

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Sign In Enterprise Scopes

48 scopes · authorizationCode

48 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Sign In Enterprise Agentic Access

43 operations · 18 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

X-MCPServerCandidate

AgenticAccess

AgentSkill

LLMsTxt

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

Lifecycle

Conformance

DataModel

Webhooks

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 5

Authentication, authorization, and security posture

TrustCenter

Compliance

Authentication

OAuthScopes

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: sign-in-enterprise
name: Sign In Enterprise
description: 'Sign In Enterprise (formerly Traction Guest, now part of Sign In Solutions) is an enterprise visitor management
  system (VMS) used by security-conscious organizations in aerospace and defense, government, manufacturing, pharmaceuticals,
  and technology. Its REST API — branded "Guest Connect" and published as the Sign In Solutions VMS API — lets developers
  retrieve and modify visitor and employee sign-in data to extend workflows: managing hosts, invites, sign-ins, registrations,
  locations, capacities, parking, group visits, watchlists, email templates, and audit logs. The API is REST over JSON, secured
  with OAuth 2.0 / OpenID Connect scoped access, and supports idempotent writes via an Idempotency-Key header.'
url: https://raw.githubusercontent.com/api-evangelist/sign-in-enterprise/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bessemer-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
image: https://signinsolutions.com/hubfs/Creatives/Logos/Sign%20In%20Solutions%20Logo.svg
tags:
- Company
- Vertical Software
- Visitor Management
- Physical Security
- Workplace Experience
- Identity
- Compliance
- Access Control
apis:
- aid: sign-in-enterprise:sign-in-enterprise-batches-api
  name: Sign In Enterprise Batches API
  description: All endpoints related to Batch-type actions.
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Batches
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-batches-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-capacities-api
  name: Sign In Enterprise Capacities API
  description: All endpoints related to Capacity management.
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Capacities
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-capacities-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-groupvisits-api
  name: Sign In Enterprise GroupVisits API
  description: All endpoints related to Group Visits (Appointments).
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - GroupVisits
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-groupvisits-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-hosts-api
  name: Sign In Enterprise Hosts API
  description: All endpoints relating to the Host model
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Hosts
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-hosts-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-invites-api
  name: Sign In Enterprise Invites API
  description: All endpoints relating to the Invite model
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Invites
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-invites-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-locations-api
  name: Sign In Enterprise Locations API
  description: All endpoints relating to the Location model, aka. DeviceConfigurations
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Location
  tags_raw:
  - Locations
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-locations-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-packages-api
  name: Sign In Enterprise Packages API
  description: All endpoints relating to the Packages model
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Packages
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-packages-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-parking-api
  name: Sign In Enterprise Parking API
  description: All endpoint related to the parking feature, including the ParkingLot and ParkingStallRange models
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Parking
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-parking-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-registrations-api
  name: Sign In Enterprise Registrations API
  description: All endpoints related to Registrations.
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Registrations
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-registrations-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-users-api
  name: Sign In Enterprise Users API
  description: All endpoints related to the User model
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-users-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-watchlists-api
  name: Sign In Enterprise Watchlists API
  description: All endpoint related to the Watchlist model
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Watchlist
  tags_raw:
  - Watchlists
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-watchlists-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-audit-logs-api
  name: Sign In Enterprise Audit Logs API
  description: All endpoints related to the AuditLog model.
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Audit Logs
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-audit-logs-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-email-templates-api
  name: Sign In Enterprise Email Templates API
  description: All endpoints relating to operations for the EmailTemplate model
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Email Templates
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-email-templates-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
- aid: sign-in-enterprise:sign-in-enterprise-sign-ins-api
  name: Sign In Enterprise Sign Ins API
  description: All endpoints related to models that track signing in and out of a location. E.g., Signin, Signout, SigninAcknowledgment
    models
  humanURL: https://developers.signinenterprise.com/
  baseURL: https://us.tractionguest.com/api/v3
  tags:
  - Sign Ins
  properties:
  - type: OpenAPI
    url: openapi/sign-in-enterprise-sign-ins-api-openapi.yml
  - type: APIReference
    url: https://developers.signinenterprise.com/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/sign-in-enterprise-guest-api-overlay.yaml
- type: TrustCenter
  url: security/sign-in-enterprise-trust-center.yml
- type: Website
  url: https://signinsolutions.com/signinenterprise
- type: DeveloperPortal
  url: https://signinsolutions.com/developer-api
- type: Documentation
  url: https://developers.signinenterprise.com/
- type: APIReference
  url: https://developers.signinenterprise.com/
- type: Pricing
  url: https://signinsolutions.com/pricing
- type: Blog
  url: https://signinsolutions.com/blog
- type: Support
  url: https://help.signinsolutions.com/
- type: PrivacyPolicy
  url: https://signinsolutions.com/privacy
- type: TermsOfService
  url: https://signinsolutions.com/terms-and-conditions
- type: Login
  url: https://us.tractionguest.com/users/sign_in
- type: GitHubOrganization
  url: https://github.com/tractionguest
- type: Compliance
  url: https://signinsolutions.com/compliance-hub
- type: Packages
  url: packages/sign-in-enterprise-packages.yml
- type: SDKs
  url: packages/sign-in-enterprise-packages.yml
- type: WellKnown
  url: well-known/sign-in-enterprise-well-known.yml
- type: Authentication
  url: authentication/sign-in-enterprise-authentication.yml
- type: OAuthScopes
  url: scopes/sign-in-enterprise-scopes.yml
- type: Conventions
  url: conventions/sign-in-enterprise-conventions.yml
- type: Idempotency
  url: conventions/sign-in-enterprise-conventions.yml
- type: ErrorCatalog
  url: errors/sign-in-enterprise-problem-types.yml
- type: Lifecycle
  url: lifecycle/sign-in-enterprise-lifecycle.yml
- type: Conformance
  url: conformance/sign-in-enterprise-conformance.yml
- type: DataModel
  url: data-model/sign-in-enterprise-data-model.yml
- type: Webhooks
  url: asyncapi/sign-in-enterprise-webhooks.yml
- type: X-MCPServerCandidate
  url: mcp/sign-in-enterprise-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: AgenticAccess
  url: agentic-access/sign-in-enterprise-agentic-access.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/sign-in-enterprise-llms.txt
- type: DomainSecurity
  url: security/sign-in-enterprise-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 23
  pass: local-v1

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