Contra

Contra is an independent-first, commission-free freelance marketplace and professional network for the jobs and skills of the future, founded in 2019 by Ben Huffman and Gajus Kuizinas and backed by Cowboy Ventures, Unusual Ventures, and NEA. Independents build a portfolio, get discovered, and manage work from inquiry to contract to payment without platform commissions. For developers, Contra exposes a read-only Public API (programs, filters, and expert profiles under https://contra.com/public-api/, authenticated with an X-API-Key header), an attribute-driven Webflow SDK, a React UI-kit, and a hosted, OAuth 2.1-protected Model Context Protocol (MCP) server at https://contra.com/mcp (scope mcp:tools).

Contra publishes 1 API on the APIs.io network: Public Api API. Tagged areas include Company, Future Of Work, Freelance Marketplace, Talent, and Hiring.

Contra’s developer surface includes documentation, engineering blog, pricing, signup flow, authentication, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub

37.5/100 thin ▬ flat Agent 57/100 agent native saas Full breakdown ↓
scored 2026-08-30 · rubric v0.17.2

AccessSelf serve

1 APIs 1 MCP Servers

Company Future Of Work Freelance Marketplace Talent Hiring Professional Network MCP Developer API

Kin Score

Kin Score How this is scored →
scored 2026-08-30 · rubric v0.17.2

Composite quality — 37.5/100 · thin

Contract Quality 9.9 / 25

Developer Ergonomics 6.5 / 20

Access Clarity 8.9 / 20

Operational Transparency 2.4 / 13

Contract Governance 2.2 / 12

Discoverability 7.6 / 10

Agent readiness — 57/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 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 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 4 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Surface 0 / 5

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/contra: 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 1

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

MCP Servers 1

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

Scopes 1

OAuth scopes governing access to this provider's APIs.

Contra Scopes

1 scope · authorizationCode

1 scopes

SCOPES

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 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

WellKnown

AgentSkill

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

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: contra
name: Contra
description: Contra is an independent-first, commission-free freelance marketplace and professional network for the jobs and
  skills of the future, founded in 2019 by Ben Huffman and Gajus Kuizinas and backed by Cowboy Ventures, Unusual Ventures,
  and NEA. Independents build a portfolio, get discovered, and manage work from inquiry to contract to payment without platform
  commissions. For developers, Contra exposes a read-only Public API (programs, filters, and expert profiles under https://contra.com/public-api/,
  authenticated with an X-API-Key header), an attribute-driven Webflow SDK, a React UI-kit, and a hosted, OAuth 2.1-protected
  Model Context Protocol (MCP) server at https://contra.com/mcp (scope mcp:tools).
url: https://raw.githubusercontent.com/api-evangelist/contra/refs/heads/main/apis.yml
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: 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://contra.com/static/opengraph-assets/v2/fallbacks/contra-fallback-open-graph-image.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- cowboy-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Future Of Work
- Freelance Marketplace
- Talent
- Hiring
- Professional Network
- MCP
- Developer API
tags_raw:
- Company
- Future Of Work
- Freelance Marketplace
- Talent
- Hiring
- Professional Network
- Model Context Protocol
- Developer API
apis:
- aid: contra:contra-public-api-api
  name: Contra Public Api API
  description: The Public Api API from Contra — 3 operation(s) for public api.
  humanURL: https://github.com/contra/contra-sdk
  baseURL: https://contra.com/public-api
  tags:
  - Public API
  tags_raw:
  - Public Api
  properties:
  - type: OpenAPI
    url: openapi/contra-public-api-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/contra-openapi-overlay.yaml
- type: Website
  url: https://contra.com
- type: Documentation
  url: https://github.com/contra/contra-sdk
- type: Blog
  url: https://contra.com/blog
- type: Pricing
  url: https://contra.com/pricing
- type: SignUp
  url: https://contra.com/sign-up
- type: TermsOfService
  url: https://contra.com/policies/terms
- type: PrivacyPolicy
  url: https://contra.com/policies/privacy
- type: GitHubOrganization
  url: https://github.com/contra
- type: StatusPage
  url: https://status.contra.com
- type: MCPServer
  url: mcp/contra-mcp.yml
- type: Authentication
  url: authentication/contra-authentication.yml
- type: OAuthScopes
  url: scopes/contra-scopes.yml
- type: WellKnown
  url: well-known/contra-well-known.yml
- type: Packages
  url: packages/contra-packages.yml
- type: SDKs
  url: packages/contra-packages.yml
- type: Conformance
  url: conformance/contra-conformance.yml
- type: ErrorCatalog
  url: errors/contra-error-codes.yml
- type: Lifecycle
  url: lifecycle/contra-lifecycle.yml
- type: Conventions
  url: conventions/contra-conventions.yml
- type: DataModel
  url: data-model/contra-data-model.yml
- type: DomainSecurity
  url: security/contra-domain-security.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/contra-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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