Crow

Crow is a Y Combinator (Winter 2026) company building an AI infrastructure platform that makes any web or mobile application AI-native. Instead of a simple chatbot, Crow embeds an agent that connects to a product's own APIs and MCP servers, executes workflows, navigates users between pages, and calls server-side and client-side tools from natural-language commands. Developers add Crow with a single script tag or the React SDK, point it at a REST API via OpenAPI or at an MCP server, and configure the agent in a sandbox. Crow also ships the Envoy CLI, which reads a backend codebase and auto-generates and deploys an MCP server, plus a headless client and React UI component library (Widget and Copilot). Crow is initially positioned for commercial real estate but the platform applies to any software product.

Crow publishes 1 API on the APIs.io network. Tagged areas include Company, Artificial Intelligence, AI Agents, MCP, and OpenAPI.

Crow’s developer surface includes documentation, getting-started guide, signup flow, CLI, sandbox, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

18.3/100 emerging ▬ flat Agent 4/100 human only saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs 1 MCP Servers

Company Artificial Intelligence AI Agents MCP OpenAPI Developer Tools SDKEmbeddable WidgetCommercial Real Estate

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 18.3/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 6.2 / 20

Access Clarity 4.2 / 20

Operational Transparency 0.3 / 13

Contract Governance 0.0 / 12

Discoverability 7.6 / 10

Agent readiness — 4/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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

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

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/crow: 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 1

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

Crow Agent Platform

The Crow agent platform surface — the widget/agent runtime served from api.usecrow.org, configured via the dashboard and consumed through the embed script and the @usecrow/clien...

MCP Servers 1

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

Crow MCP Server

Crow Docs MCP - connects an AI coding agent to Crow's documentation so it can help integrate the Crow widget, set up identity verification, and configure OpenAPI or MCP server i...

MCP SERVER

Security Posture 1

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

Crow Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Components

Components

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

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 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: crow
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - url: https://www.usecrow.ai/
    status: 307
    note: declared website redirects to https://myturnstone.ai/ — a different registrable domain (usecrow.ai -> myturnstone.ai),
      possible rename or acquisition (probed 2026-09-03, roadmap#169)
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/crow.png
name: Crow
description: Crow is a Y Combinator (Winter 2026) company building an AI infrastructure platform that makes any web or mobile
  application AI-native. Instead of a simple chatbot, Crow embeds an agent that connects to a product's own APIs and MCP servers,
  executes workflows, navigates users between pages, and calls server-side and client-side tools from natural-language commands.
  Developers add Crow with a single script tag or the React SDK, point it at a REST API via OpenAPI or at an MCP server, and
  configure the agent in a sandbox. Crow also ships the Envoy CLI, which reads a backend codebase and auto-generates and deploys
  an MCP server, plus a headless client and React UI component library (Widget and Copilot). Crow is initially positioned
  for commercial real estate but the platform applies to any software product.
url: https://raw.githubusercontent.com/api-evangelist/crow/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: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Artificial Intelligence
- AI Agents
- MCP
- OpenAPI
- Developer Tools
- SDK
- Embeddable Widget
- Commercial Real Estate
tags_raw:
- Company
- Artificial Intelligence
- AI Agents
- MCP
- Model Context Protocol
- OpenAPI
- Developer Tools
- SDK
- Embeddable Widget
- Commercial Real Estate
apis:
- name: Crow Agent Platform
  description: The Crow agent platform surface — the widget/agent runtime served from api.usecrow.org, configured via the
    dashboard and consumed through the embed script and the @usecrow/client / @usecrow/ui SDKs. Crow connects the agent to
    a product's own REST API (via OpenAPI) or MCP server.
  humanURL: https://docs.usecrow.ai/
  baseURL: https://api.usecrow.org
  tags:
  - AI Agents
  - MCP
  - Widget
  properties:
  - type: Documentation
    url: https://docs.usecrow.ai/
  - type: GettingStarted
    url: https://docs.usecrow.ai/quickstart
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/crow-domain-security.yml
- type: Website
  url: https://www.usecrow.ai/
- type: DeveloperPortal
  url: https://app.usecrow.ai/
- type: Documentation
  url: https://docs.usecrow.ai/
- type: GettingStarted
  url: https://docs.usecrow.ai/quickstart
- type: SignUp
  url: https://app.usecrow.ai/
- type: GitHubOrganization
  url: https://github.com/usecrow
- type: TermsOfService
  url: https://www.usecrow.ai/terms
- type: PrivacyPolicy
  url: https://www.usecrow.ai/privacy
- type: Packages
  url: packages/crow-packages.yml
- type: SDKs
  url: packages/crow-packages.yml
- type: CLI
  url: cli/crow-cli.yml
- type: Components
  url: components/crow-components.yml
- type: MCPServer
  url: mcp/crow-mcp.yml
- type: Sandbox
  url: sandbox/crow-sandbox.yml
- type: LLMsTxt
  url: llms/crow-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/crow"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/crow/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/crow/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.