# Cardinal

> Cardinal is an AI platform for precision outbound sales — "revenue agents for
> high-growth companies." Its agents build and refresh account lists from signals,
> monitor what prospects post and engage with, generate personalized snippets, and
> orchestrate end-to-end email and LinkedIn plays, while capturing inbound from website
> visitors, product signups and ad impressions. Cardinal is a Y Combinator Winter 2026
> company founded by Devishi Jha and Jianna Liu, based in San Francisco, and names
> Mintlify, Deepgram, Greptile, Giga and Luminai among its customers. It sells a
> half-software, half-service model: it wires into a customer's existing GTM stack,
> reads from and writes back to their CRM, and builds agents around plays that already
> work for them. As of 2026-08-13 it publishes no public API, no developer portal and no
> documentation site.

Generated by the API Evangelist enrichment pipeline on 2026-08-13 (method: generated,
from apis.yml, the artifacts in this repository, and live probes of every Cardinal host).
Not published by Cardinal — trycardinal.com and trycardinal.ai serve no llms.txt of
their own (both HTTP 404).

## APIs

Cardinal publishes no public API. Contract discovery on 2026-08-13 probed four hosts
across two domains — www.trycardinal.com, trycardinal.ai, app.trycardinal.ai and
api.trycardinal.ai — for OpenAPI, Swagger, GraphQL SDL, AsyncAPI, MCP `tools/list`,
llms.txt and A2A agent cards, and found none. See the x-coverage block in apis.yml for
the probed URLs and their HTTP statuses.

Three things are worth knowing about that absence:

- **An API exists; it is simply not public.** Cardinal's own status page declares
  exactly one component and its name is "API" (operational, 100% uptime over the
  rolling three-month window). Every `/api/*` path on the customer application returns
  HTTP 401 `{"error":"Unauthorized"}`.
- **The API hostname is dangling.** `api.trycardinal.ai` resolves by CNAME to a Render
  service that no longer exists (`x-render-routing: no-server`) and presents no TLS
  certificate, so HTTPS fails at the handshake.
- **No documentation host exists at all.** `docs.trycardinal.ai` and
  `docs.trycardinal.com` have no DNS record.

## Company

- [Website](https://www.trycardinal.com/): Marketing site (Framer-hosted).
- [Product](https://www.trycardinal.com/product): Agents, list automation, workflow
  sharing, community playbooks, team analytics. States that Cardinal "reads and writes
  directly into your legacy CRMs and GTM stack" and "adds a new integration every two
  weeks" — no integration is named publicly.
- [Enterprise](https://www.trycardinal.com/enterprise): Enterprise positioning and
  customer testimonials.
- [Customers](https://www.trycardinal.com/customers): Named customers.
- [Team](https://www.trycardinal.com/team): Founders and team.
- [Blog](https://www.trycardinal.com/blog): Two long-form GTM essays. Not a release log.
- [Application login](https://app.trycardinal.ai/login): Customer application, Stytch-backed
  login. Every unauthenticated path 307s here.
- [Book a GTM chat](https://calendly.com/trycardinal/gtm-chat): The published commercial
  entry point. Contact: team@trycardinal.ai
- [Careers](https://www.ycombinator.com/companies/trycardinal-ai/jobs): Roles are posted
  on the company's Y Combinator profile.
- [LinkedIn](https://www.linkedin.com/company/trycardinalai/)
- [X / Twitter](https://x.com/trycardinalai)

## Operations

- [Status page](https://status.trycardinal.ai/): incident.io, first-party, machine-readable.
- [Status summary JSON](https://status.trycardinal.ai/api/v2/summary.json): Statuspage-v2
  compatible, unauthenticated.
- [Status RSS](https://status.trycardinal.ai/feed.rss): Currently zero items.

## Commercial

Nothing is published. There is no pricing page, no plan table, no starting price, no
free tier and no trial terms on either domain — the company's own sitemap lists eleven
URLs and none of them is a pricing, signup, terms or privacy path. Access is provisioned
through a sales conversation, not purchased.

## Domain note

Cardinal moved its marketing site from trycardinal.ai to trycardinal.com during 2026:
`https://trycardinal.ai/` HTTP 301s to `https://www.trycardinal.com/`, and the former
deep pages on the .ai domain (`/company`, `/product`) now return 404. The .ai domain is
not abandoned — it still carries the customer application, the status page, the
published contact address and the company's analytics identity. The API Evangelist slug
`trycardinal-ai` is retained.

## Artifacts in this repository

- [Lifecycle (status page, versioning, deprecation, decommissioned hosts)](lifecycle/trycardinal-ai-lifecycle.yml)
- [Domain security (TLS/HSTS/DNSSEC/CAA/SPF/DMARC across both domains)](security/trycardinal-ai-domain-security.yml)
- [Well-known probe (30 paths, 3 hosts, zero documents)](well-known/trycardinal-ai-well-known.yml)
- [Plans and pricing (plan_count: 0)](plans/trycardinal-ai-plans-pricing.yml)
- [Rate limits (limit_count: 0)](rate-limits/trycardinal-ai-rate-limits.yml)

## Notes

- This is an API Evangelist third-party profile assembled from publicly reachable
  material. See README.md.
- generated: 2026-08-13
- method: generated
- source: apis.yml + repo artifacts + live probes of trycardinal.com and trycardinal.ai