Wingspan

Wingspan is a contractor payments and payroll platform built for the independent workforce, giving enterprises a single system to onboard 1099 contractors, collect W-9 and compliance documents, run approval-based payroll, pay collaborators by ACH or instant payout, and file 1099 tax forms. Its REST Payments API (OpenAPI 3.1) covers payables, invoicing, collaborators and groups, payable/invoice/1099 batches, deductions, eligibility requirements, custom fields, reporting, and webhooks, with embeddable onboarding and payout-settings UIs.

Wingspan publishes 15 APIs on the APIs.io network, including 1099 Operations API, Banking Management API, Bulk Operations API, and 12 more. Tagged areas include Company, Payments, Payroll, Contractors, and Invoicing.

The Wingspan catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Wingspan’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, authentication, and 25 more developer resources.

🌐 Visit website 📡 Source on GitHub
61.1/100 strong ▬ flat Agent 78/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
15 APIs 1 MCP Servers
CompanyPaymentsPayrollContractorsInvoicingTaxesFintechFreelance Economy

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 61.1/100 · strong
Contract Quality 15.7 / 25
Developer Ergonomics 16.1 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 6.5 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 78/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 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/wingspan: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 15

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

Wingspan 1099 Operations API

Includes endpoints for managing 1099 forms.

Wingspan Banking Management API

These endpoints cater to fetching, storing, and managing documents related to electronic signatures, including retrieval of signing URLs and saving e-signed documents.

Wingspan Bulk Operations API

This category includes endpoints for managing bulk operations like bulk payables, bulk invoices, and bulk collaborator management.

Wingspan Client Management API

Encompasses endpoints for banking-related operations such as managing bank cards, statements, instant payouts, and banking institutions..

Wingspan Collaborator Management API

This category includes endpoints that manage relationships and interactions with collaborators. This includes collaborator settings, and various operations related to collaborat...

Wingspan Custom Field Management API

Focuses on endpoints for managing custom fields related to payments and collaborators.

Wingspan Deprecated API

Deprecated Endpoints.

Wingspan Document Signing and Eligibility API

Focuses on endpoints for managing eligibility requirements and custom fields related to payments.

Wingspan Invoice Management API

Covers endpoints related to invoice creation, retrieval, and management. This includes both member and client invoices, along with specific actions like sending invoices by emai...

Wingspan Merchant Category Codes API

Endpoint that provides a comprehensive list of available Merchant Category Codes.

Wingspan Payables Management API

Endpoints dealing with payables, including creating, listing, updating, and deleting payables. It also includes summary endpoints and immediate payroll payables.

Wingspan Payroll Settings API

Covers endpoints that manage payout settings and related configurations.

Wingspan Reporting and Analytics API

Includes endpoints for generating various reports and analytics, such as payables reports, collaborators reports, and aging reports.

Wingspan Service Settings API

Covers endpoints that manage service statuses and related configurations.

Wingspan Wingspan Wallet API

Operations related to Wingspan Wallet

Scroll for all 15

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

wingspan-mcp.yml

MCP SERVER

Rate Limits 1

Documented rate limits and quota policies.

Wingspan Rate Limits

2 limits

RATE LIMITS

Event Specifications 1

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

Wingspan Webhooks

ASYNCAPI

Security Posture 3

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

Wingspan Authentication

http · 1 scheme

SECURITY

Wingspan Domain Security

TLSv1.3 · DMARC

SECURITY

Wingspan Trust Center

SOC 2, HIPAA

SECURITY

Agentic Access 1

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

Wingspan Agentic Access

172 operations · 92 acting

172 operations · 92 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 Login
Login
 Sandbox
Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 AgentSkill
AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Lifecycle
Lifecycle
 Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Conventions
Conventions
 Webhooks
Webhooks
 Components
Components
 DataModel
DataModel

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs

Access & Security 4

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity
 TrustCenter
TrustCenter
 Compliance
Compliance

Operate 4

Status, limits, changes, and where to get help

Support
Support
 HelpCenter
HelpCenter
 StatusPage
StatusPage
 RateLimits
RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: wingspan
name: Wingspan
description: Wingspan is a contractor payments and payroll platform built for the independent workforce, giving enterprises
  a single system to onboard 1099 contractors, collect W-9 and compliance documents, run approval-based payroll, pay collaborators
  by ACH or instant payout, and file 1099 tax forms. Its REST Payments API (OpenAPI 3.1) covers payables, invoicing, collaborators
  and groups, payable/invoice/1099 batches, deductions, eligibility requirements, custom fields, reporting, and webhooks,
  with embeddable onboarding and payout-settings UIs.
url: https://raw.githubusercontent.com/api-evangelist/wingspan/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
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
image: https://www.wingspan.app/images/wingspan-logo.svg
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Payments
- Payroll
- Contractors
- Invoicing
- Taxes
- Fintech
- Freelance Economy
apis:
- aid: wingspan:wingspan-1099-operations-api
  name: Wingspan 1099 Operations API
  description: Includes endpoints for managing 1099 forms.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - 1099 Operations
  properties:
  - type: OpenAPI
    url: openapi/wingspan-1099-operations-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-banking-management-api
  name: Wingspan Banking Management API
  description: These endpoints cater to fetching, storing, and managing documents related to electronic signatures, including
    retrieval of signing URLs and saving e-signed documents.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Banking Management
  properties:
  - type: OpenAPI
    url: openapi/wingspan-banking-management-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-bulk-operations-api
  name: Wingspan Bulk Operations API
  description: This category includes endpoints for managing bulk operations like bulk payables, bulk invoices, and bulk collaborator
    management.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Bulk Operations
  properties:
  - type: OpenAPI
    url: openapi/wingspan-bulk-operations-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-client-management-api
  name: Wingspan Client Management API
  description: Encompasses endpoints for banking-related operations such as managing bank cards, statements, instant payouts,
    and banking institutions..
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Client Management
  properties:
  - type: OpenAPI
    url: openapi/wingspan-client-management-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-collaborator-management-api
  name: Wingspan Collaborator Management API
  description: This category includes endpoints that manage relationships and interactions with collaborators. This includes
    collaborator settings, and various operations related to collaborators.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Collaborator Management
  properties:
  - type: OpenAPI
    url: openapi/wingspan-collaborator-management-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-custom-field-management-api
  name: Wingspan Custom Field Management API
  description: Focuses on endpoints for managing custom fields related to payments and collaborators.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Custom Field Management
  properties:
  - type: OpenAPI
    url: openapi/wingspan-custom-field-management-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-deprecated-api
  name: Wingspan Deprecated API
  description: Deprecated Endpoints.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Deprecated
  properties:
  - type: OpenAPI
    url: openapi/wingspan-deprecated-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-document-signing-and-eligibility-api
  name: Wingspan Document Signing and Eligibility API
  description: Focuses on endpoints for managing eligibility requirements and custom fields related to payments.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Document Signing and Eligibility
  properties:
  - type: OpenAPI
    url: openapi/wingspan-document-signing-and-eligibility-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-invoice-management-api
  name: Wingspan Invoice Management API
  description: Covers endpoints related to invoice creation, retrieval, and management. This includes both member and client
    invoices, along with specific actions like sending invoices by email and managing invoice templates.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Invoice Management
  properties:
  - type: OpenAPI
    url: openapi/wingspan-invoice-management-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-merchant-category-codes-api
  name: Wingspan Merchant Category Codes API
  description: Endpoint that provides a comprehensive list of available Merchant Category Codes.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Merchant Category Codes
  properties:
  - type: OpenAPI
    url: openapi/wingspan-merchant-category-codes-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-payables-management-api
  name: Wingspan Payables Management API
  description: Endpoints dealing with payables, including creating, listing, updating, and deleting payables. It also includes
    summary endpoints and immediate payroll payables.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Payables Management
  properties:
  - type: OpenAPI
    url: openapi/wingspan-payables-management-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-payroll-settings-api
  name: Wingspan Payroll Settings API
  description: Covers endpoints that manage payout settings and related configurations.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Payroll Settings
  properties:
  - type: OpenAPI
    url: openapi/wingspan-payroll-settings-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-reporting-and-analytics-api
  name: Wingspan Reporting and Analytics API
  description: Includes endpoints for generating various reports and analytics, such as payables reports, collaborators reports,
    and aging reports.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Reporting and Analytics
  properties:
  - type: OpenAPI
    url: openapi/wingspan-reporting-and-analytics-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-service-settings-api
  name: Wingspan Service Settings API
  description: Covers endpoints that manage service statuses and related configurations.
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Service Settings
  properties:
  - type: OpenAPI
    url: openapi/wingspan-service-settings-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
- aid: wingspan:wingspan-wingspan-wallet-api
  name: Wingspan Wingspan Wallet API
  description: Operations related to Wingspan Wallet
  humanURL: https://docs.wingspan.app/
  baseURL: https://api.wingspan.app
  tags:
  - Wingspan Wallet
  properties:
  - type: OpenAPI
    url: openapi/wingspan-wingspan-wallet-api-openapi.yml
  - type: Documentation
    url: https://docs.wingspan.app/
  - type: APIReference
    url: https://docs.wingspan.app/reference
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DeveloperPortal
  url: https://docs.wingspan.app/
- type: Documentation
  url: https://docs.wingspan.app/
- type: APIReference
  url: https://docs.wingspan.app/reference
- type: GettingStarted
  url: https://docs.wingspan.app/docs/get-started-with-the-wingspan-api
- type: Support
  url: https://www.wingspan.app/support
- type: HelpCenter
  url: https://help.wingspan.app/en/
- type: Blog
  url: https://www.wingspan.app/blog
- type: GitHubOrganization
  url: https://github.com/wingspanHQ
- type: Pricing
  url: https://www.wingspan.app/pricing
- type: Login
  url: https://my.wingspan.app/
- type: TermsOfService
  url: https://www.wingspan.app/terms-of-service
- type: PrivacyPolicy
  url: https://www.wingspan.app/privacy-policy
- type: StatusPage
  url: https://status.wingspan.app/
- type: Lifecycle
  url: lifecycle/wingspan-lifecycle.yml
- type: Authentication
  url: authentication/wingspan-authentication.yml
- type: DomainSecurity
  url: security/wingspan-domain-security.yml
- type: TrustCenter
  url: security/wingspan-trust-center.yml
- type: Compliance
  url: https://www.wingspan.app/security
- type: Conformance
  url: conformance/wingspan-conformance.yml
- type: AgenticAccess
  url: agentic-access/wingspan-agentic-access.yml
- type: Packages
  url: packages/wingspan-packages.yml
- type: SDKs
  url: packages/wingspan-packages.yml
- type: MCPServer
  url: mcp/wingspan-mcp.yml
- type: LLMsTxt
  url: llms/wingspan-llms.txt
- type: ErrorCatalog
  url: errors/wingspan-error-codes.yml
- type: Sandbox
  url: sandbox/wingspan-sandbox.yml
- type: Conventions
  url: conventions/wingspan-conventions.yml
- type: RateLimits
  url: rate-limits/wingspan-rate-limits.yml
- type: Webhooks
  url: asyncapi/wingspan-webhooks.yml
- type: Components
  url: components/wingspan-components.yml
- type: DataModel
  url: data-model/wingspan-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 7
  pass: local-v1