Guide · Claude, Claude Code and Cursor
Read a lease with Claude.
Claude can summarise a lease. What it cannot do on its own is count “twelve months before the last day of the 120th full calendar month after the Commencement Date” reliably, or quote the exact sentence every time. Prism is a remote MCP server that does both: the model reads the rule, code computes the date, and every result carries the clause it came from. Connect it once and ask Claude to read the lease.
Step 1: connect Prism
Claude (web and desktop)
Open Settings, then Connectors, choose to add a custom connector, and paste:
https://prism.parad1gm.com/api/prism-mcpClaude signs in to a Prism account with OAuth the first time it connects, and you choose what it may do.
Claude Code
claude mcp add --transport http prism https://prism.parad1gm.com/api/prism-mcpCursor
Add to Cursor opens the app if it is installed. Otherwise add the server by hand:
{
"mcpServers": {
"prism": { "url": "https://prism.parad1gm.com/api/prism-mcp" }
}
}VS Code, A2A agents and API keys are on the agents page.
Step 2: ask
Attach or paste the lease and ask:
“Read this lease and list every critical date with the clause each one comes from.”
For an amendment, with the id of the lease Prism already read:
“Send this amendment with amendsContractId set to the lease’s id, and tell me what changed.”
Claude sends the document with prism_review_contract, waits about a minute, and reads the result with prism_get_contract. For a portfolio, prism_upcoming_deadlines lists the open deadlines across every lease in the account, soonest first.
What comes back
Every critical date
Expiration, renewal and termination notice windows, rent commencement and steps, audit and estoppel deadlines: the date, what happens if it is missed, and the sentence it came from.
Computed, not estimated
The model reads the rule and the anchor; code computes the date. A period the lease never states is left empty rather than guessed.
A structured abstract for a paid lease
About 35 terms (parties, premises, area, rent and steps, deposit, permitted use, options, insurance, default, holdover and more), each with a verbatim quote. A term the lease does not state is left empty.
Amendments read together
An amendment sent with amendsContractId is read with the lease and its earlier amendments, so its dates and abstract show the lease as amended.
A free preview first
Before paying, Claude sees three facts from the lease. Unlocking the rest spends one credit; the same lease is never charged twice.
Reminders
For an unlocked lease, an email to you 90, 30 and 7 days before each deadline.
Questions
Do I need a Prism account?
Yes. Claude signs you in over OAuth the first time it connects, and every account starts with 3 free credits. You can also create an API key on the Billing page and send it as a bearer token.
Which Claude does this work with?
Claude on the web and desktop through a custom connector, and Claude Code through the command above. Cursor, VS Code and any other MCP client use the same server URL.
What does it cost?
$0.50 a lease for an agent, charged once when the full results are first delivered, and the first 3 are free. Previews, re-reads and documents Prism cannot read are free. On the website it is $1 per contract, or $9 a month for up to 50.
Can Claude read a mortgage or a purchase agreement the same way?
Yes. Prism reads leases, mortgages and loan modifications, insurance policies, HOA documents, purchase and sale agreements, construction contracts and vendor agreements. The prompt is the same; the dates it looks for change with the document.
What can a connected Claude do to my account?
Only what you allow when you connect it: read without sending contracts, or send and unlock. It reaches your own Prism account only, and you can disconnect it any time from Security.
Is this legal advice?
No. Prism tells you what the lease says and where, and Claude tells you what Prism returned. For a decision that matters, read the clause and ask a lawyer.