WithAI

WithAI is a San Francisco-based Y Combinator (Spring 2026) company building Multiplier, a secure AI platform for institutional investors and independent equity hedge funds. Multiplier unifies structured data, unstructured data, AI agents, human work, and firm knowledge so investment teams can research stocks and manage portfolios more efficiently, with an integration ecosystem spanning Bloomberg, FactSet, Enfusion, Snowflake, and other market data and infrastructure platforms. WithAI does not currently publish a public API, developer portal, or documentation.

WithAI is profiled on the APIs.io network. Tagged areas include Company, Artificial Intelligence, AI Agents, Investment Management, and Hedge Funds.

🌐 Visit website 📡 Source on GitHub

11.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyArtificial IntelligenceAI AgentsInvestment ManagementHedge FundsFinancial ServicesInvestment Research

Kin Score

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

Composite quality — 11.0/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 4.2 / 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/withai: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 4

The organization behind the API

Website

Website

Careers

Careers

LinkedIn

Twitter

Twitter

Other 2

Properties that don't map to a standard resource type

Team

Team

YCombinatorProfile

YCombinatorProfile

Source (apis.yml)

aid: withai
name: WithAI
description: WithAI is a San Francisco-based Y Combinator (Spring 2026) company building Multiplier, a secure AI platform
  for institutional investors and independent equity hedge funds. Multiplier unifies structured data, unstructured data, AI
  agents, human work, and firm knowledge so investment teams can research stocks and manage portfolios more efficiently, with
  an integration ecosystem spanning Bloomberg, FactSet, Enfusion, Snowflake, and other market data and infrastructure platforms.
  WithAI does not currently publish a public API, developer portal, or documentation.
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://withai.co/icon2.svg
url: https://raw.githubusercontent.com/api-evangelist/withai/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Artificial Intelligence
- AI Agents
- Investment Management
- Hedge Funds
- Financial Services
- Investment Research
apis: []
common:
- type: DomainSecurity
  url: security/withai-domain-security.yml
- name: Website
  type: Website
  url: https://withai.co
- name: Careers
  type: Careers
  url: https://withai.co/careers
- name: Team
  type: Team
  url: https://withai.co/team
- name: Terms of Service
  type: TermsOfService
  url: https://withai.co/terms
- name: Privacy Policy
  type: PrivacyPolicy
  url: https://withai.co/privacy
- name: LinkedIn
  type: LinkedIn
  url: https://www.linkedin.com/company/withai-inc/
- name: Twitter
  type: Twitter
  url: https://x.com/withai_inc
- name: Y Combinator Profile
  type: YCombinatorProfile
  url: https://www.ycombinator.com/companies/withai
- name: LLMs.txt
  type: LLMsTxt
  url: llms/withai-llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: minimal
  artifacts_added: 3
  pass: local-v1