Hosted MCP serverNo install/Bring your own key

Corporate ownership intelligence for AI agents.

Ask who owns a company: get parents, private equity backers, corporate families, and portfolio siblings, across thousands of companies at a time. Your agent calls it mid-task. No login, no CSV, no tabs.

Get an API keyRead the repo
$https://spotlight-mcp.magellandata.io/mcp
claude — magellan-data
>We just closed Moosend. It's backed by PE. Find every other portfolio company. Those are our warm expansion targets.
⏺ submit_batch(["moosend.com"]) · free
⏺ process_batch(["pe_ownership"]) · free
⏺ get_run_status → completed · free
Moosend was acquired by Constant Contact, a Clearlake Capital portfolio company. Pulling the full portfolio will cost 3,400 credits (170 records × 20). Want me to download it?
>yes
01 — The shift

Your agent can call anyone.
The question is who is right.

Aggregators won because a human had to log in somewhere, and it was easier when everything lived in one place. That constraint is gone. What's left is accuracy and fill rate: whether the answer is right, and whether you get one at all.

Before Magellan Data
You log into a platform and manually search.
You export a CSV, then reconcile it by hand.
You pay per seat for breadth you never use.
With Magellan Data
Your agent is already plugged into your account list.
Results join back to your file on input_url.
You pay for the rows you download. Nothing else.
02 — Proof
0%
Average accuracy + fill rate*

A Fortune 500 buyer put us up against PitchBook and ZoomInfo on their own account list. It wasn't close.

PitchBook82%
ZoomInfo73%
* Accuracy: share of returned owners that matched the buyer’s verified records
* Fill rate: share of the submitted list with an owner returned
03 — How it works

Free until you mean to spend.

Submitting, processing, and polling cost nothing. You’re only charged once, at the moment you download. Your agent tells you the price and you decide.

submit_batch
Up to 5,000 company URLs in. Get one batch_id back.
free
process_batch
Async runs start, one per output type.
free
get_run_status
Poll every 10 to 30s. The response gives the price.
free
download_run
Presigned CSV link, not inline rows.
charges credits
04 — What you can look up

Four enrichment types. One call each.

parent_companies
70 credits / owner found
Is this company a subsidiary, and of whom? Target the top of the org chart from day one.
pe_ownership
70 credits / owner found
Is it PE-backed, by which firm, and what deal type? Pursue MSAs with the PE firms themselves.
corporate_families
20 credits / output record
Get every subsidiary and sister company under a shared parent. Use this to land and expand.
pe_portfolios
20 credits / output record
Get every company held by the same PE firm. One closed deal becomes a list of targets where you already have a reference.
05 — Skills

A finished deliverable, not raw JSON.

Connect your CRM or target account list to your agent to turn ownership data into ranked expansion targets, coverage scores, and enriched account lists.

account-expansion
You closed one account. This returns the rest of its ownership graph, ranked by who to approach next and flagged for whether you already cover them.
pe-portfolio-map
Every company a firm holds, scored against your own coverage: what you've won, what's in progress, and what nobody's touched.
ownership-enrichment
Your account list comes back with parent and PE-backing columns added, joined on domain in the order you sent it.
Without a skill
{"input_url":"moosend.com",
 "pe_firm":"Clearlake Capital",
 "deal_type": "control", ... }
× 169 more rows
With account expansion
1. Sister company under same parentnew
2. Recent add-on, same size bandnew
3. Portfolio sibling, shared MSAcovered
Every new record is a land-and-expand opportunity you don't have
06 — Credits

10,000 free credits. No card required.

Everything up to the download is free, including asking what the download will cost. The agent will ask before it spends any credits. Download again is free, forever.

Credit balance
10,000
12-row fixture, PE ownership840
200 accounts, 140 parents found9,800
One PE firm, 400 holdings8,000
Checking any of these prices0
07 — Connect

One line in Claude Code. Two in everything else.

Hosted server, stateless, Streamable HTTP. Nothing to install and nothing to run.

claude mcp add --transport http magellan-data \
  https://spotlight-mcp.magellandata.io/mcp \
  --header "Authorization: Bearer mgln_sk_live_YOUR_KEY"

claude mcp list   # expect: magellan-data ... ✓ Connected
Then ask your agent: "Check my Magellan Data credit balance." A number back means you're connected. That call is free.
Get an API key
Sign up, generate a key from the Spotlight dashboard, and 10,000 credits are already on it.
API documentation
Transport details, auth, and the REST API under the hood.
MCP GitHub repo
Manifests, skills, a working quickstart, and a 12-row fixture to test against.
Also available

Prefer a CSV? Spotlight is still there.

The MCP is for agents. Spotlight is for when you'd rather upload a list and download a file. Same data, same credits. Use whichever fits the task.