Query accounts, run plays and pull research from your own code, or ask for it in Claude, ChatGPT or Cursor through our MCP server.

accounts.tsREST
Slack#engLive
CardinalAPI call from your app: 3 accounts matched, play started.POST /v1/plays/run · 200
Just ask

Connect the Cardinal MCP server and ask in plain words. Accounts, signals and plays come back with the context to act on them.

  • Claude, ChatGPT, Cursor and any MCP client
  • The same permissions as the app
  • Approvals still apply
MCPCardinal in Claude

Cardinal · find_accounts

Three, ranked by fit:

Okapi$40M Series A
Tallow$24M Series B
Kiln$12M Seed
Start the funding play for all three?Run play
Things people ask Cardinal

Ask Cardinalin Claude, ChatGPT or CursorConnected to your stack
Start the pricing-page play for these five accounts.
SalesforceRead SalesforceSlackRead Slack

Running now. Owners told in #deals.

Pricing page, twice5 accounts · 4 stepsLive

Ask about any account, play or reply

@
Docs and changelog

Reference docs, examples you can paste and a changelog that ships every week.

Read the docs

API reference

Every endpoint, with examples you can paste.

MCP quickstart

Connect Claude to your pipeline in two minutes.

Changelog

What shipped this week, and what’s next.

Features

REST and webhooks

Every object in Cardinal, readable and writable, with events as they happen.

OpenAI

MCP server

Works with Claude, ChatGPT, Cursor and any client that speaks MCP.

Scoped keys

Keys per workspace and per user, with the same permissions as the app.

Playbooks

Three plays teams run on API + MCP. Open one to see every step.

Explore all plays
Customers

Four teams on what changed once Cardinal joined.

Customer proof

Every figure is from a customer, in their own words, with where they said it.

Autosana$100kIn revenue closed within three weeks

“From Cardinal we’ve had 10 customers convert.”

Yuvan SundraniYuvan SundraniCo-founder and CEO, Autosana
151people in conversation, up from four in the first month

“It feels like when I log in every single day, it was built for me and my team.”

Darrion DumlaoDarrion DumlaoGTM, Seltz
60%response rate from C-suites at their last conference

“We set the guardrails, we set the runbooks and then it does the job.”

Gus TrigosGus TrigosCo-founder and CEO, Runtime
FAQ

  • Yes, with rate limits that scale with your plan.

Build with Cardinal

Get a key, connect the MCP server and ask for pipeline in the tools you already use.

MCPCardinal in Claude

Cardinal · find_accounts

Three, ranked by fit:

Okapi$40M Series A
Tallow$24M Series B
Kiln$12M Seed
Start the funding play for all three?Run play

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