Wefunder

Wefunder is the largest SEC-registered funding portal, the home of the Community Round — a Public Benefit Corporation (YC W13) that has helped 4,400+ founders raise over $1B from more than one million everyday investors since 2012, with notable raises from Mercury, Substack, and Replit. Its OAuth 2.0 Wefunder API v2 (api.wefunder.com) exposes public offerings, investments, campaigns, syndicates, write intents, and campaign attribution with signed webhooks, backed by an official TypeScript SDK (@wefunder/sdk) and PKCE-first authorization.

Wefunder publishes 13 APIs on the APIs.io network, including Activity API, Attribution API, Attribution Partners API, and 10 more. Tagged areas include Company, Crowdfunding, Equity Crowdfunding, Investing, and Fintech.

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

Wefunder’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub
53.0/100 developing ▬ flat Agent 84/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
13 APIs 1 MCP Servers
CompanyCrowdfundingEquity CrowdfundingInvestingFintechStartupsFundraisingSyndicatesRegulation Crowdfunding

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 53.0/100 · developing
Contract Quality 18.0 / 25
Developer Ergonomics 14.3 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 1.7 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 84/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 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/wefunder: 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 13

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

Wefunder Activity API

The Activity API from Wefunder — 3 operation(s) for activity.

Wefunder Attribution API

The Attribution API from Wefunder — 2 operation(s) for attribution.

Wefunder Attribution Partners API

The Attribution Partners API from Wefunder — 5 operation(s) for attribution partners.

Wefunder Attribution Webhooks API

The Attribution Webhooks API from Wefunder — 5 operation(s) for attribution webhooks.

Wefunder Campaigns API

The Campaigns API from Wefunder — 1 operation(s) for campaigns.

Wefunder Explore API

The Explore API from Wefunder — 2 operation(s) for explore.

Wefunder Intents API

The Intents API from Wefunder — 2 operation(s) for intents.

Wefunder Investments API

The Investments API from Wefunder — 1 operation(s) for investments.

Wefunder Syndicate Deals API

The Syndicate Deals API from Wefunder — 5 operation(s) for syndicate deals.

Wefunder Syndicate Members API

The Syndicate Members API from Wefunder — 12 operation(s) for syndicate members.

Wefunder Syndicate Statistics API

The Syndicate Statistics API from Wefunder — 1 operation(s) for syndicate statistics.

Wefunder Syndicates API

The Syndicates API from Wefunder — 2 operation(s) for syndicates.

Wefunder Users API

The Users API from Wefunder — 1 operation(s) for users.

Scroll for all 13

MCP Servers 1

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

wefunder-mcp.yml

MCP SERVER

Event Specifications 1

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

Wefunder Webhooks

ASYNCAPI

Security Posture 2

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

Wefunder Authentication

oauth2 · 1 scheme

SECURITY

Wefunder Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Wefunder Scopes

16 scopes · authorizationCode/clientCredentials

16 scopes

SCOPES

Agentic Access 1

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

Wefunder Agentic Access

48 operations · 24 acting · 3 human-in-the-loop

48 operations · 24 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted
 SignUp
SignUp
 Sandbox
Sandbox

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
 MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 AgentSkill
AgentSkill
 AgenticAccess
AgenticAccess

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conventions
Conventions
 Idempotency
Idempotency
 Webhooks
Webhooks
 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 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 OAuthScopes
OAuthScopes

Operate 1

Status, limits, changes, and where to get help

Support
Support

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

Source (apis.yml)

apis.yml Raw ↑ 
aid: wefunder
name: Wefunder
description: Wefunder is the largest SEC-registered funding portal, the home of the Community Round — a Public Benefit Corporation
  (YC W13) that has helped 4,400+ founders raise over $1B from more than one million everyday investors since 2012, with notable
  raises from Mercury, Substack, and Replit. Its OAuth 2.0 Wefunder API v2 (api.wefunder.com) exposes public offerings, investments,
  campaigns, syndicates, write intents, and campaign attribution with signed webhooks, backed by an official TypeScript SDK
  (@wefunder/sdk) and PKCE-first authorization.
url: https://raw.githubusercontent.com/api-evangelist/wefunder/refs/heads/main/apis.yml
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://wefunder.com/favicon.ico
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- y-combinator
x-tier: full
x-tier-reason: official public API with OpenAPI, SDK, and OAuth surface
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Crowdfunding
- Equity Crowdfunding
- Investing
- Fintech
- Startups
- Fundraising
- Syndicates
- Regulation Crowdfunding
apis:
- aid: wefunder:wefunder-activity-api
  name: Wefunder Activity API
  description: The Activity API from Wefunder — 3 operation(s) for activity.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Activity
  properties:
  - type: OpenAPI
    url: openapi/wefunder-activity-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-attribution-api
  name: Wefunder Attribution API
  description: The Attribution API from Wefunder — 2 operation(s) for attribution.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Attribution
  properties:
  - type: OpenAPI
    url: openapi/wefunder-attribution-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-attribution-partners-api
  name: Wefunder Attribution Partners API
  description: The Attribution Partners API from Wefunder — 5 operation(s) for attribution partners.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Attribution Partners
  properties:
  - type: OpenAPI
    url: openapi/wefunder-attribution-partners-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-attribution-webhooks-api
  name: Wefunder Attribution Webhooks API
  description: The Attribution Webhooks API from Wefunder — 5 operation(s) for attribution webhooks.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Attribution Webhooks
  properties:
  - type: OpenAPI
    url: openapi/wefunder-attribution-webhooks-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-campaigns-api
  name: Wefunder Campaigns API
  description: The Campaigns API from Wefunder — 1 operation(s) for campaigns.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Campaigns
  properties:
  - type: OpenAPI
    url: openapi/wefunder-campaigns-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-explore-api
  name: Wefunder Explore API
  description: The Explore API from Wefunder — 2 operation(s) for explore.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Explore
  properties:
  - type: OpenAPI
    url: openapi/wefunder-explore-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-intents-api
  name: Wefunder Intents API
  description: The Intents API from Wefunder — 2 operation(s) for intents.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Intents
  properties:
  - type: OpenAPI
    url: openapi/wefunder-intents-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-investments-api
  name: Wefunder Investments API
  description: The Investments API from Wefunder — 1 operation(s) for investments.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Investments
  properties:
  - type: OpenAPI
    url: openapi/wefunder-investments-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-syndicate-deals-api
  name: Wefunder Syndicate Deals API
  description: The Syndicate Deals API from Wefunder — 5 operation(s) for syndicate deals.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Syndicate Deals
  properties:
  - type: OpenAPI
    url: openapi/wefunder-syndicate-deals-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-syndicate-members-api
  name: Wefunder Syndicate Members API
  description: The Syndicate Members API from Wefunder — 12 operation(s) for syndicate members.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Syndicate Members
  properties:
  - type: OpenAPI
    url: openapi/wefunder-syndicate-members-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-syndicate-statistics-api
  name: Wefunder Syndicate Statistics API
  description: The Syndicate Statistics API from Wefunder — 1 operation(s) for syndicate statistics.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Syndicate Statistics
  properties:
  - type: OpenAPI
    url: openapi/wefunder-syndicate-statistics-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-syndicates-api
  name: Wefunder Syndicates API
  description: The Syndicates API from Wefunder — 2 operation(s) for syndicates.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Syndicates
  properties:
  - type: OpenAPI
    url: openapi/wefunder-syndicates-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
- aid: wefunder:wefunder-users-api
  name: Wefunder Users API
  description: The Users API from Wefunder — 1 operation(s) for users.
  humanURL: https://docs.wefunder.com/api-reference
  baseURL: https://api.wefunder.com
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/wefunder-users-api-openapi.yml
  - type: Documentation
    url: https://docs.wefunder.com/api-reference
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/wefunder-domain-security.yml
- type: Website
  url: https://wefunder.com
- type: Documentation
  url: https://docs.wefunder.com
- type: APIReference
  url: https://docs.wefunder.com/api-reference
- type: GettingStarted
  url: https://github.com/Wefunder/wefunder-node#quickstart-server-to-server
- type: Support
  url: https://help.wefunder.com
- type: Blog
  url: https://wefunder.com/blog
- type: GitHubOrganization
  url: https://github.com/Wefunder
- type: Pricing
  url: https://wefunder.com/pricing
- type: TermsOfService
  url: https://wefunder.com/terms
- type: PrivacyPolicy
  url: https://wefunder.com/terms#privacy
- type: SignUp
  url: https://wefunder.com/signup
- type: Packages
  url: packages/wefunder-packages.yml
- type: SDKs
  url: packages/wefunder-packages.yml
- type: WellKnown
  url: well-known/wefunder-well-known.yml
- type: MCPServer
  url: mcp/wefunder-mcp.yml
- type: LLMsTxt
  url: llms/wefunder-llms.txt
- type: Conformance
  url: conformance/wefunder-conformance.yml
- type: ErrorCatalog
  url: errors/wefunder-problem-types.yml
- type: Lifecycle
  url: lifecycle/wefunder-lifecycle.yml
- type: Sandbox
  url: sandbox/wefunder-sandbox.yml
- type: Conventions
  url: conventions/wefunder-conventions.yml
- type: Idempotency
  url: conventions/wefunder-conventions.yml
- type: Webhooks
  url: asyncapi/wefunder-webhooks.yml
- type: DataModel
  url: data-model/wefunder-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: AgenticAccess
  url: agentic-access/wefunder-agentic-access.yml
- type: Authentication
  url: authentication/wefunder-authentication.yml
- type: OAuthScopes
  url: scopes/wefunder-scopes.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 22
  pass: local-v1