Model Context Protocol
A SPAC MCP server, so your assistant reads the filings itself
Connect Claude, or any MCP client, to every U.S. special purpose acquisition company: trust value per share, combination deadlines, sponsors and their record, underwriting syndicates, live quotes and the unembargoed SEC filing feed. Compiled from EDGAR, not scraped from summaries.
Blank-check companies
1,059
Still live
328
In trust, searching
$40.3B
Connecting takes one URL
There is no API key to generate, copy or store. The connector registers itself and asks you to approve it in a browser window, the same way any other app you sign into does.
Add the connector
In Claude: Settings, Connectors, Add custom connector. Paste the server URL below and nothing else.
Approve once
A SPACListing window opens. Sign in, see exactly what the connector will be able to read, and approve.
Ask questions
Claude now calls the data directly. Disconnect whenever you like from your account page.
MCP server URL
https://mcp.spaclisting.comStreamable HTTP transport, OAuth 2.1 with dynamic client registration and PKCE. Any compliant MCP client connects the same way. Prefer a bearer token? A SPACListing API key works too, and the same subscription covers the REST API at https://api.spaclisting.com.
What the assistant can call
Six read-only tools. Each one is a thin wrapper over the same data the website renders, so an answer given in a conversation and a figure read off a page cannot disagree.
search_spacsSearch and filter the universe of U.S. special purpose acquisition companies. Use this to answer questions about which SPACs match a set of criteria: still searching for a target, listed on a given exchange, holding more than a given amount in trust, facing a deadline before a given date, or chasing a particular sector. Returns trust size, redemption value per share, deadline, sponsor and the Edge, FOMO and Potential scores.
get_spacEverything known about one SPAC, by slug: trust economics, the combination deadline and how many extensions it has taken, the mandate, the sponsor, the underwriting syndicate with each bank's allocation, the live quote and its spread to the redemption floor, recent SEC filings with links to the documents, and recent news. Use search_spacs first if you only have a name or ticker.
list_filingsThe live SEC EDGAR filing feed across every SPAC, newest first, with no delay. Use this to see what has just been filed: 8-K item 1.01 for a combination agreement, S-4 and DEFM14A for a merger going to a vote, 424B4 for a completed IPO. Set material_only to skip routine paperwork.
deadline_calendarSPACs ordered by how soon they must complete a combination or liquidate, out to two years. A deadline is the single most actionable date on a SPAC: as it approaches the sponsor must either close, buy an extension from shareholders, or return the trust.
sponsor_leagueSponsor franchises ranked by how many SPACs they have run, how much capital they raised and what share of their vehicles actually closed a deal rather than liquidating. Use this to judge whether a sponsor has a record or is on their first attempt.
bank_leagueUnderwriters ranked by SPAC IPOs they took to market, how often they ran the book rather than sat in the syndicate, the dollar volume they underwrote and the share of their deals that closed a combination. Use this for questions about which banks are active in SPACs and how their deals turned out.
Questions it answers without guessing
These need the whole universe searched, not one page read. Without a connector an assistant either declines or invents an answer; with one it runs the screener.
- Which SPACs still searching have more than $300m in trust and a deadline inside 90 days?
- Show me the vehicles trading below their redemption value, ranked by annualised return.
- Which sponsors have run more than three SPACs, and what share of them actually closed a deal?
- What has Cantor Fitzgerald underwritten this year, and how did those deals end?
- What was filed on SPAC combinations in the last week?
- Give me everything on Drugs Made In America Acquisition II: trust, deadline, syndicate, filings.
What sits behind it
Straight from the filings
EDGAR submission histories, XBRL company facts and the prospectus text. Lifecycle status is derived from form types: a 424B4 marks the IPO, a 425 or S-4 the announcement, a 25-NSE the wind-down. Trust economics take both halves of every ratio from the same reporting period, because a trust balance from one quarter over a share count from another is not a redemption value.
Blank where it should be blank
Where a figure cannot be reconciled it comes back null rather than as a plausible guess. An assistant that is told a number exists when it does not will repeat it with perfect confidence, which is precisely the failure this data is meant to prevent. How it is built
Questions people ask
What is a SPAC MCP server?
The Model Context Protocol is an open standard that lets an AI assistant call a data source directly instead of being told about it second hand. A SPAC MCP server exposes special purpose acquisition company data as tools an assistant can invoke: search the universe, pull one vehicle's full profile, read the live SEC filing feed. SPACListing runs one at mcp.spaclisting.com, built on the same tables the website renders from.
How do I connect it to Claude?
In Claude, open Settings, then Connectors, then Add custom connector, and enter https://mcp.spaclisting.com. Claude registers itself, opens a sign-in window, and you approve once. There is no API key to generate or paste, and you can disconnect it from your account page at any time.
Does it work with MCP clients other than Claude?
Yes. It speaks the streamable HTTP transport with OAuth 2.1, dynamic client registration and PKCE, so any compliant MCP client connects the same way. A client that would rather not run the OAuth flow can send a SPACListing API key as a bearer token instead.
What data does it cover?
Every U.S. registrant classified under SIC 6770, blank checks, from first S-1 to liquidation or completed combination. That includes trust balance and redemption value per share, the combination deadline, the mandate, the sponsor and their record, the underwriting syndicate with each bank's allocation, live quotes, the spread between price and trust, and every SEC filing mapped to the issuing vehicle.
Where does the data come from?
SEC EDGAR: submission histories, XBRL company facts and the prospectus text itself. Nothing is estimated. Where two disclosures cannot be reconciled to the same reporting period the field comes back null rather than as a plausible-looking number, and every profile links to the filing a figure came from.
Is the SPAC MCP server free?
No. It is part of SPACListing Pro, $14.95 a month. The public website, the screener and every SPAC profile are free to read; the MCP server, the REST API, unembargoed filings and CSV export are the paid tier. One subscription covers all of them.
What can I actually ask it?
Questions that need the whole universe searched rather than one page read. Which SPACs with over $300m in trust have a deadline inside ninety days. Which sponsors have closed more than half of the vehicles they have run. What has been filed on a combination in the last week. Which vehicles trade below their redemption value and what that is worth annualised.
How current is it?
Filings are ingested from EDGAR every two hours and reach the MCP server with no embargo, while the free website delays them 24 hours. Quotes refresh every half hour through the U.S. trading day. Scores and yields are recomputed twice an hour while the market is open.
Does it write anything, or place trades?
No. Every tool is read only. It cannot change your account, cannot see your billing details, and has no connection to any broker. It is reference data.
How is this different from scraping EDGAR myself?
EDGAR gives you documents; this gives you reconciled figures. The work in between is identifying which registrants are SPACs, mapping filings to vehicles, deriving lifecycle status from form types, pulling trust economics out of XBRL with both halves of every ratio taken from the same period, and parsing the syndicate and mandate out of prospectus prose. That is what the server hands an assistant in one call.
Included with Pro, $14.95 a month
The same subscription covers the MCP server, the REST API, SEC filings with no 24-hour delay, the full twelve-month deadline calendar and CSV export. The directory, the screener and every SPAC profile stay free to read.