Commercial lease expiry and tenancy data for AI agents

Massachusetts

Commercial lease expiry and tenancy data in Massachusetts

26 dated Massachusetts records, read from filed public sources rather than modelled, and callable by an AI agent with no key.

Short answer

Which commercial leases are approaching expiry, and who occupies a building? In Massachusetts, 23 records are dated ahead of today. Every one of them is listed below in full, and they are free. 26 have been published in Massachusetts in total, counting those already past.

All 23 in Massachusetts

That is the whole Massachusetts population for this family, not a sample. The call underneath returns the same rows, up to its own fifty-row ceiling.

DatePropertyCityUnitsAmountSource
2026-09-3040 Erie StreetIntellia Therapeutics, Inc.: the lease at 40 Erie Street, Cambridge, MA expires 2026-09-30 (65,319 sq ft, 61% of the building).Cambridge—65,319 square_feetsec_abs_ee
2026-12-31222 Berkeley Street and 500 Boylston StreetWAYFAIR LLC: the lease at 222 Berkeley Street and 500 Boylston Street, Boston, MA expires 2026-12-31 (68,255 sq ft, 5% of the building).Boston—68,255 square_feetsec_abs_ee
2027-03-31450 Grossman Drive AKA PGA Individual PropertyUnited States of America: the lease at 450 Grossman Drive AKA PGA Individual Property, Braintree, MA expires 2027-03-31 (68,378 sq ft, 65% of the building).Braintree—68,378 square_feetsec_abs_ee
2027-03-31900 Chelmsford StreetInternational Business Machines: the lease at 900 Chelmsford Street, Lowell, MA expires 2027-03-31 (150,608 sq ft, 11% of the building).Lowell—150,608 square_feetsec_abs_ee
2027-06-1755 Saint George RoadMDSINE, LLC - MDSine MA Multispecialty: the lease at 55 Saint George Road, Springfield, MA expires 2027-06-17 (8,880 sq ft, 81% of the building).Springfield—8,880 square_feetsec_abs_ee
2027-08-3112-14 New BondCMSEC (14 New Bond): the lease at 12-14 New Bond, Worcester, MA expires 2027-08-31 (118,068 sq ft, 32% of the building).Worcester—118,068 square_feetsec_abs_ee
2027-08-3110-14 New Bond StreetCMSEC: the lease at 10-14 New Bond Street, Worcester, MA expires 2027-08-31 (113,226 sq ft, 41% of the building).Worcester—113,226 square_feetsec_abs_ee
2027-10-3125 FIRST STREETHubspot Inc.: the lease at 25 FIRST STREET, Cambridge, MA expires 2027-10-31 (231,019 sq ft, the whole building).Cambridge—231,019 square_feetsec_abs_ee
2028-02-2988 Sidney StreetAgios Pharmaceuticals, Inc.: the lease at 88 Sidney Street, Cambridge, MA expires 2028-02-29 (146,034 sq ft, the whole building).Cambridge—146,034 square_feetsec_abs_ee
2028-03-31125 Summer StreetKlaviyo: the lease at 125 Summer Street, Boston, MA expires 2028-03-31 (231,436 sq ft, 47% of the building).Boston—231,436 square_feetsec_abs_ee
2028-06-30One Memorial DriveMicrosoft Corporation: the lease at One Memorial Drive, Cambridge, MA expires 2028-06-30 (156,849 sq ft, 34% of the building).Cambridge—156,849 square_feetsec_abs_ee
2028-06-30One Memorial DriveMicrosoft Corporation: the lease at One Memorial Drive, Cambridge, MA expires 2028-06-30 (156,849 sq ft, 34% of the building).Cambridge—156,849 square_feetsec_abs_ee
2028-06-30280 and 290 Merrimack StreetCOMMONWEALTH OF MASSACHUSETTS: the lease at 280 AND 290 MERRIMACK STREET, Lawrence, MA expires 2028-06-30 (85,520 sq ft, 22% of the building).Lawrence—85,520 square_feetsec_abs_ee
2028-07-30127-137 Main StreetLittle Sprouts Child Enrichmen: the lease at 127-137 Main Street, Medford, MA expires 2028-07-30 (10,600 sq ft, 33% of the building).Medford010,600 square_feetsec_abs_ee
2028-07-31200 Sidney StreetAbbVie Inc.: the lease at 200 Sidney Street, Cambridge, MA expires 2028-07-31 (119,980 sq ft, 64% of the building).Cambridge—119,980 square_feetsec_abs_ee
2028-09-3026 Landsdowne StreetBeam Therapeutics, Inc.: the lease at 26 Landsdowne Street, Cambridge, MA expires 2028-09-30 (38,203 sq ft, 37% of the building).Cambridge—38,203 square_feetsec_abs_ee
2029-01-3170 Worcester-Providence TurnpikeTARGET: the lease at 70 Worcester-Providence Turnpike, Millbury, MA expires 2029-01-31 (127,000 sq ft, 16% of the building).Millbury—127,000 square_feetsec_abs_ee
2029-02-28280, 290 & 350 MERRIMACK STREETNaStage Medical Inc: the lease at 280, 290 & 350 MERRIMACK STREET, Lawrence, MA expires 2029-02-28 (145,000 sq ft, 27% of the building).Lawrence—145,000 square_feetsec_abs_ee
2029-02-28350 Merrimack StreetNXSTAGE MEDICAL, INC.: the lease at 350 Merrimack Street, Lawrence, MA expires 2029-02-28 (145,000 sq ft, 99% of the building).Lawrence—145,000 square_feetsec_abs_ee
2029-06-3067 FOREST STREETThe Commonwealth: the lease at 67 FOREST STREET, Marlborough, MA expires 2029-06-30 (28,249 sq ft, 45% of the building).Marlborough—28,249 square_feetsec_abs_ee
2029-07-31766 North King StreetPioneer Spine Sports - Northampton: the lease at 766 North King Street, Northampton, MA expires 2029-07-31 (5,600 sq ft, 53% of the building).Northampton—5,600 square_feetsec_abs_ee
2029-07-31271 Park StreetPioneer Spine Sports - West Springfield: the lease at 271 Park Street, West Springfield, MA expires 2029-07-31 (15,000 sq ft, the whole building).West Springfield—15,000 square_feetsec_abs_ee
2029-08-31700 Main StreetNOVARTIS INSTITUTES: the lease at 700 Main Street, Cambridge, MA expires 2029-08-31 (99,883 sq ft, 59% of the building).Cambridge—99,883 square_feetsec_abs_ee

Read from the published event tape on 2026-09-12.

The call that returns this

One anonymous POST. No key, no signup, no rate card. Raise limit to 50, or change state to any of the 55 covered.

curl -s https://exchange-production-9123.up.railway.app/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"search_property_events","arguments":{"event_type":"LEASE_EXPIRING","state":"MA","within_days":1825,"limit":500}}}'

Putting this in your own agent

The same endpoint is a Model Context Protocol server, so an assistant can ask it the question instead of you reading a table. It answers for every covered state, not just Massachusetts, and it is the same free tier.

Add to CursorAdd to VS Code

Claude Code

one command, then it is available in every session

claude mcp add --transport http dfx-real-estate https://exchange-production-9123.up.railway.app/mcp

Claude Desktop

claude_desktop_config.json, then restart the app. It cannot reach a remote server directly, so this bridges through mcp-remote.

{
  "mcpServers": {
    "dfx-real-estate": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://exchange-production-9123.up.railway.app/mcp"
      ]
    }
  }
}

Cursor, Windsurf, Cline and Zed

the mcp.json their settings panel writes

{
  "mcpServers": {
    "dfx-real-estate": {
      "url": "https://exchange-production-9123.up.railway.app/mcp"
    }
  }
}

VS Code

the servers key, which is spelled differently to everything above

{
  "servers": {
    "dfx-real-estate": {
      "type": "http",
      "url": "https://exchange-production-9123.up.railway.app/mcp"
    }
  }
}

Then ask it this

Nothing names DFX. If the install worked, the assistant picks the tool itself.

Which commercial leases in Massachusetts expire in the next two years?

There is no signup, no API key and no OAuth for anything free, and eleven of the twelve tools are free. A plain GET on the endpoint returns every tool schema, so a client can be pointed at it and evaluated before it is trusted.

Where this does not help

This is the DISCLOSED slice of tenancy, not all of it. Absence of a lease is not evidence a building is empty.

The same question in other states

Facts on this page were last checked against the running product on . Prices are read from the live billing configuration, so this page and your invoice cannot disagree. The machine-readable version of this record is at /ai/entity.json.