Remote MCP server that gives an assistant EPA EJScreen environmental justice indicators, pollution burden and demographic vulnerability data for US locations.
What you can do
Look up environmental justice screening data for a point location with a buffer distance, including environmental indicators, demographics and EJ indexes. Summarize block groups in a county, sorted by overall environmental burden. Get a state-level overview of the most burdened block groups, sorted by PM2.5 percentile. Retrieve demographic vulnerability indicators by block group, such as minority and low-income percentages, linguistic isolation, education and age. Retrieve specific environmental indicator values and state percentiles by block group, optionally filtered by indicator type or county FIPS code.
When to use it
Useful when you need quick US environmental justice context for a place, county or state, such as comparing pollution burden across block groups or checking demographic vulnerability alongside environmental indicators.
Requirements
A remote streamable HTTP endpoint at mcp.olyport.com; no package, account, API key, environment variable or header is declared. Network access is needed, and queries are limited to US locations and states.
Before you install
Queries are sent to a third-party endpoint, which relays them to the EPA EJScreen REST broker, so location and area queries leave your machine. Data is read-only screening information from public environmental justice datasets and should not be treated as authoritative for regulatory or health decisions.
Enable the server for the chats that should use its tools.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Use with an agent
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/com.olyport%2Fejscreen/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.
Get EJScreen environmental justice data for a specific location.
Uses the EPA EJScreen REST broker to retrieve EJ screening indicators
for a point location with a buffer distance. Returns environmental
indicators, demographic data, and EJ indexes.
Args:
latitude: Latitude of the location (e.g. 47.61).
longitude: Longitude of the location (e.g. -122.33).
distance: Buffer distance in miles around the point (default 1.0).
Get EJ indicators for census block groups in a county.
Returns EJScreen environmental justice data for block groups within
the specified county, sorted by highest overall environmental burden.
Includes environmental indicators, demographic data, and EJ indexes.
Args:
state: Two-letter US state abbreviation (e.g. 'WA', 'CA').
county_fips: County FIPS code, either 5-digit full (e.g. '53033')
or 3-digit county portion (e.g. '033'). If 3 digits,
state FIPS is prepended automatically.
limit: Maximum number of block groups to return (default 50, max 500).
Parameterslimitstaterequiredcounty_fipsrequired
get_ej_state_summary
Get a state-level overview of EJ indicators across block groups.
Returns the most environmentally burdened block groups in the state,
sorted by PM2.5 percentile. Useful for identifying areas with the
highest environmental justice concerns.
Args:
state: Two-letter US state abbreviation (e.g. 'WA', 'CA').
limit: Maximum number of block groups to return (default 100, max 500).
Parameterslimitstaterequired
get_demographic_indicators
Get demographic vulnerability indicators by block group.
Returns demographic data including minority percentage, low income
percentage, linguistic isolation, education levels, and age
distributions. These are the demographic components used in
EJScreen's EJ index calculations.
Args:
state: Two-letter US state abbreviation (e.g. 'WA', 'CA').
county_fips: Optional county FIPS code (3-digit or 5-digit).
If omitted, returns state-level results sorted by
highest demographic index.
limit: Maximum number of block groups to return (default 50, max 500).
Parameterslimitstaterequiredcounty_fips
get_environmental_indicators
Get specific environmental indicators by block group.
Returns environmental indicator values and state percentiles for
block groups. Can filter to a specific indicator type or return all.
Args:
state: Two-letter US state abbreviation (e.g. 'WA', 'CA').
county_fips: Optional county FIPS code (3-digit or 5-digit).
If omitted, returns state-level results.
indicator: Optional specific indicator to focus on. Options:
'pm25', 'ozone', 'diesel', 'cancer', 'respiratory',
'traffic', 'lead', 'superfund', 'hazwaste',
'wastewater', 'rmp', 'ust'. If omitted, returns all.
limit: Maximum number of block groups to return (default 50, max 500).
Parameterslimitstaterequiredindicatorcounty_fips
Version history
1
v1.1.0LatestSep 16, 2026
Score
83%
83% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
LicenseNot applicable
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.
