L3R
Claude connectorCommunityReal Property Intelligence
Look up US property by street address or parcel number.
For each property, L3R returns: 1. What's there: property type, number of buildings, floors, year built, and the official name when it has one. 2. Which parcel: the county parcel number and a stable L3R property key. 3. Where it is: location, plus Census tract, place, and county with 2020–2024 survey figures (population, housing, tenure, income, home value, rent).
Coverage parcel numbers for about 124 million properties in 2,216 / 3,222 US counties; Census figures for all 50 states, DC, and Puerto Rico. Building facts come from open public sources, so they are held for many properties, but not all.
Free and read-only, with no account needed. One address per call. L3R never returns owners, values, sales, or parcel outlines.
Built by L3R, real property intelligence. For municipal code, permits, and rights, see Athena at 3drights.com.
L3R is #7,976 of 11,065 Claude connectors by popularity.
- Tools
- 2
exposed by this connector
Movement
From our daily snapshots over the last 30 days.
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Popularity score
Trending score
In its categories
How this connector compares with others in the same category. Positions are counted within the category, not across the whole directory.
Data analytics3,116th of 3,994 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 3114 | 2,807 | — | 614places down | |
| 3115 | 2,807 | — | 312places down | |
| 3116 | L3RThis page | 2,807 | — | — |
| 3117 | 2,807 | — | — | |
| 3118 | 2,807 | — | — |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 |  Hevy | 4,611,167 | 11,443 #301 | 2places down |
| 2 | 4,214,705 | 9,604 #577 | — | |
| 3 |  Adspirer Retail Media Ads | 684,184 | 10,578 #414 | 2places down |
| 4 | 632,495 | 9,778 #546 | 6places up | |
| 5 | 531,611 | 15,746 #38 | 66places up |
Tools
- census_for_area
- lookup_property
- Categories
- Sign-in
- Not required
- Connector URL
- https://mcp.l3r.io/mcp
- Transport
- Streamable HTTP
- Works with
- Claude, Claude API, Claude Code, Claude Desktop
- Added
- November 8, 2026
- More info
- Sponsorship
- Promote this connector