Gustav

Gustav is a vendor management platform (VMS) and sub-vendor marketplace for the staffing industry, enabling staffing firms to source talent from their trusted vendor network, share open jobs, collect and screen candidate submissions, run standardized hiring pipelines, schedule interviews, message vendors, and track performance in one place. Vendors organize into "Gustav Circles" with tiered job-release controls, and candidate submissions sync to applicant tracking systems including Bullhorn and JobDiva. Originally a Speedinvest-backed startup, Gustav is now operated by the member-owned Fuse Cooperative (a Colorado Limited Cooperative Association) and bills itself as the staffing industry's largest sub-vendor marketplace. Gustav is a SaaS web application; it does not currently publish a public developer API, OpenAPI specification, or SDKs — integrations are delivered through the Bullhorn and JobDiva marketplaces.

Gustav is profiled on the APIs.io network. Tagged areas include Company, Staffing, Vendor Management, VMS, and Recruiting.

Gustav’s developer surface includes support, signup flow, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

14.5/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyStaffingVendor ManagementVMSRecruitingMarketplaceContingent WorkforceHR TechATS Integration

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 14.5/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.9 / 20

Commercial Clarity 6.8 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 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

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/gustav: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

HelpCenter

HelpCenter

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

About

About

LinkedIn

Source (apis.yml)

aid: gustav
name: Gustav
description: Gustav is a vendor management platform (VMS) and sub-vendor marketplace for the staffing industry, enabling staffing
  firms to source talent from their trusted vendor network, share open jobs, collect and screen candidate submissions, run
  standardized hiring pipelines, schedule interviews, message vendors, and track performance in one place. Vendors organize
  into "Gustav Circles" with tiered job-release controls, and candidate submissions sync to applicant tracking systems including
  Bullhorn and JobDiva. Originally a Speedinvest-backed startup, Gustav is now operated by the member-owned Fuse Cooperative
  (a Colorado Limited Cooperative Association) and bills itself as the staffing industry's largest sub-vendor marketplace.
  Gustav is a SaaS web application; it does not currently publish a public developer API, OpenAPI specification, or SDKs —
  integrations are delivered through the Bullhorn and JobDiva marketplaces.
url: https://raw.githubusercontent.com/api-evangelist/gustav/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://app.hellogustav.com/gustav-favicon.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- speedinvest
x-tier: stub
x-tier-reason: portfolio-lead-no-public-api
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Staffing
- Vendor Management
- VMS
- Recruiting
- Marketplace
- Contingent Workforce
- HR Tech
- ATS Integration
apis: []
common:
- type: Website
  url: https://www.gustav.app/
- type: About
  url: https://www.gustav.app/about-us
- type: Features
  url: https://www.gustav.app/features
- type: Support
  url: https://help.hellogustav.com/en/
- type: HelpCenter
  url: https://help.hellogustav.com/en/
- type: SignUp
  url: https://app.hellogustav.com/signup
- type: Login
  url: https://app.hellogustav.com/login
- type: TermsOfService
  url: https://www.gustav.app/terms-of-use
- type: PrivacyPolicy
  url: https://www.gustav.app/privacy-policy
- type: LinkedIn
  url: https://www.linkedin.com/company/fusegustav
- type: Integrations
  url: https://www.gustav.app/bullhorn-integration
- type: DomainSecurity
  url: security/gustav-domain-security.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence