PayFit

PayFit is a cloud-based payroll and HR platform serving small and mid-sized businesses in France, the United Kingdom, Spain, Germany, and Italy with automated payroll, expense management, leave and time tracking, and employee self-service. The platform handles country-specific payroll calculations, tax filings, and social declarations alongside core HR workflows. PayFit exposes two REST APIs: a Customer API authenticated via private API keys for direct company-data access, and a Partner API using OAuth 2.0 for integration developers building marketplace solutions.

PayFit publishes 9 APIs on the APIs.io network, including Absences API, Collaborators API, Company API, and 6 more. Tagged areas include Payroll, Human Resources, Europe Payroll, Time and Attendance, and Employee Management.

PayFit’s developer surface includes authentication, documentation, pricing, signup flow, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

25.6/100 emerging ▬ flat Agent 21/100 agent aware Front door AI 6/6 dominant saas Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0

1 published contract

Payroll Human ResourcesEurope PayrollTime and Attendance Employee Management

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Human Capital Management

BC-300

AbsencesCollaboratorsCompanyContractsInsurancePayslips

GET /collaborators/{id}/payslips GET /collaborators POST /collaborators GET /health-insurance-contracts

Kin Score

Kin Score How this is scored →
scored 2026-10-04 · rubric v0.23.0

Composite quality — 25.6/100 · emerging

Contract Quality 8.4 / 19

Developer Ergonomics 1.6 / 15

Access Clarity 3.2 / 15

Operational Transparency 0.6 / 10

Contract Governance 0.0 / 9

Discoverability 5.5 / 8

Regulatory Posture 3.4 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 21/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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 6 / 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 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Employment & Payroll 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/payfit: 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 9

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

PayFit Partner API

OAuth 2.0 REST API for solution developers building integrations with PayFit. Once enabled by a customer, partners can synchronize collaborators, payroll journals, meal vouchers...

PayFit Customer API

Private REST API for PayFit customers to access their own company data via long-lived private API keys, suitable for in-house scripts and direct integrations.

PayFit Absences API

The Absences API from PayFit — 1 operation(s) for absences.

PayFit Collaborators API

The Collaborators API from PayFit — 2 operation(s) for collaborators.

PayFit Company API

The Company API from PayFit — 4 operation(s) for company.

PayFit Contracts API

The Contracts API from PayFit — 2 operation(s) for contracts.

PayFit Documents API

The Documents API from PayFit — 1 operation(s) for documents.

PayFit Insurance API

The Insurance API from PayFit — 3 operation(s) for insurance.

PayFit Payslips API

The Payslips API from PayFit — 2 operation(s) for payslips.

Scroll for all 9

Open Collections 9

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

API Collection

OPEN COLLECTION

PayFit Partner & Customer Absences API

OPEN COLLECTION

PayFit Partner & Customer Absences Collaborators API

OPEN COLLECTION

PayFit Partner & Customer Absences Company API

OPEN COLLECTION

PayFit Partner & Customer Absences Contracts API

OPEN COLLECTION

PayFit Partner & Customer Absences Documents API

OPEN COLLECTION

PayFit Partner & Customer Absences Insurance API

OPEN COLLECTION

PayFit Partner & Customer Absences Payslips API

OPEN COLLECTION

PayFit Partner & Customer API

OPEN COLLECTION

Scroll for all 9

Security Posture 4

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

Payfit Authentication

apiKey/http · 2 schemes

SECURITY

Payfit Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Payfit Vulnerability Disclosure

Hackerone

SECURITY

Payfit Trust Center

ISO 27001

SECURITY

Agentic Access 1

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

Payfit Agentic Access

17 operations · 3 acting

AGENTIC

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 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Company 2

The organization behind the API

LinkedIn

Website

Website

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: payfit
name: PayFit
description: 'PayFit is a cloud-based payroll and HR platform serving small and mid-sized businesses in France, the United
  Kingdom, Spain, Germany, and Italy with automated payroll, expense management, leave and time tracking, and employee self-service.
  The platform handles country-specific payroll calculations, tax filings, and social declarations alongside core HR workflows.
  PayFit exposes two REST APIs: a Customer API authenticated via private API keys for direct company-data access, and a Partner
  API using OAuth 2.0 for integration developers building marketplace solutions.'
type: Index
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: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/payfit.png
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-04
tags:
- Payroll
- Human Resources
- Europe Payroll
- Time and Attendance
- Employee Management
tags_raw:
- Payroll
- Human Resources
- HR Tech
- Europe Payroll
- Time and Attendance
- Employee Management
url: https://raw.githubusercontent.com/api-evangelist/payfit/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.23'
apis:
- aid: payfit:partner-api
  name: PayFit Partner API
  description: OAuth 2.0 REST API for solution developers building integrations with PayFit. Once enabled by a customer, partners
    can synchronize collaborators, payroll journals, meal vouchers, and other HR data.
  humanURL: https://developers.payfit.io/
  baseURL: https://partner-api.payfit.com
  tags:
  - Partner API
  - Authentication
  - Payroll
  - HR Integration
  tags_raw:
  - Partner API
  - OAuth
  - Payroll
  - HR Integration
  properties:
  - type: Documentation
    url: https://developers.payfit.io/
  - type: Authentication
    url: https://developers.payfit.io/docs/authentication
  - type: Webhooks
    url: https://developers.payfit.io/docs/webhooks
- aid: payfit:customer-api
  name: PayFit Customer API
  description: Private REST API for PayFit customers to access their own company data via long-lived private API keys, suitable
    for in-house scripts and direct integrations.
  humanURL: https://developers.payfit.io/
  baseURL: https://api.payfit.com
  tags:
  - Customer API
  - APIKeys
  - Payroll
  - HR Data
  tags_raw:
  - Customer API
  - API Key
  - Payroll
  - HR Data
  properties:
  - type: Documentation
    url: https://developers.payfit.io/
- aid: payfit:payfit-absences-api
  name: PayFit Absences API
  description: The Absences API from PayFit — 1 operation(s) for absences.
  humanURL: https://developers.payfit.io/
  baseURL: https://partner-api.payfit.com
  tags:
  - Absences
  properties:
  - type: OpenAPI
    url: openapi/payfit-absences-api-openapi.yml
- aid: payfit:payfit-collaborators-api
  name: PayFit Collaborators API
  description: The Collaborators API from PayFit — 2 operation(s) for collaborators.
  humanURL: https://developers.payfit.io/
  baseURL: https://partner-api.payfit.com
  tags:
  - Collaborators
  properties:
  - type: OpenAPI
    url: openapi/payfit-collaborators-api-openapi.yml
- aid: payfit:payfit-company-api
  name: PayFit Company API
  description: The Company API from PayFit — 4 operation(s) for company.
  humanURL: https://developers.payfit.io/
  baseURL: https://partner-api.payfit.com
  tags:
  - Company
  properties:
  - type: OpenAPI
    url: openapi/payfit-company-api-openapi.yml
- aid: payfit:payfit-contracts-api
  name: PayFit Contracts API
  description: The Contracts API from PayFit — 2 operation(s) for contracts.
  humanURL: https://developers.payfit.io/
  baseURL: https://partner-api.payfit.com
  tags:
  - Contracts
  properties:
  - type: OpenAPI
    url: openapi/payfit-contracts-api-openapi.yml
- aid: payfit:payfit-documents-api
  name: PayFit Documents API
  description: The Documents API from PayFit — 1 operation(s) for documents.
  humanURL: https://developers.payfit.io/
  baseURL: https://partner-api.payfit.com
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/payfit-documents-api-openapi.yml
- aid: payfit:payfit-insurance-api
  name: PayFit Insurance API
  description: The Insurance API from PayFit — 3 operation(s) for insurance.
  humanURL: https://developers.payfit.io/
  baseURL: https://partner-api.payfit.com
  tags:
  - Insurance
  properties:
  - type: OpenAPI
    url: openapi/payfit-insurance-api-openapi.yml
- aid: payfit:payfit-payslips-api
  name: PayFit Payslips API
  description: The Payslips API from PayFit — 2 operation(s) for payslips.
  humanURL: https://developers.payfit.io/
  baseURL: https://partner-api.payfit.com
  tags:
  - Payslips
  properties:
  - type: OpenAPI
    url: openapi/payfit-payslips-api-openapi.yml
common:
- type: CapabilityMap
  url: capabilities/payfit-capability-edges.yml
  name: PayFit Business Capability Map
- type: AgenticAccess
  url: agentic-access/payfit-agentic-access.yml
- type: TrustCenter
  url: security/payfit-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/payfit-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/payfit-domain-security.yml
- type: Authentication
  url: authentication/payfit-authentication.yml
- type: GitHubOrganization
  url: https://github.com/PayFit
- type: LinkedIn
  url: https://www.linkedin.com/company/payfit
- type: Website
  url: https://payfit.com
- type: Documentation
  url: https://developers.payfit.io/
- type: Pricing
  url: https://payfit.com/uk/pricing/
- type: Signup
  url: https://app.payfit.com/signup
- type: LlmsText
  url: https://developers.payfit.io/llms.txt
features:
- name: Automated Payroll
  description: Country-specific payroll engine that automates calculations, payslips, and tax/social filings for FR, UK, ES,
    DE, and IT.
- name: Leave and Absence Management
  description: Track time off, sick leave, and other absences with manager approval workflows and payroll integration.
- name: Expense Management
  description: Submit, approve, and reimburse employee expenses with direct flow into payroll where applicable.
- name: Employee Self-Service
  description: Employees access payslips, request time off, and update personal information through a self-service portal
    and mobile app.
- name: Time Tracking
  description: Clock in/out, timesheets, and scheduling integrated with payroll calculations and leave balances.
- name: Partner Integrations
  description: OAuth-based Partner API enables third-party tools (accounting, HRIS, expense, T&A) to sync data with PayFit.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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