Close API
by close.city · remote · no sign-in to list tools · v1.2.0 · published by city.close
Walk, bike, and transit travel times from every US census block to nearby amenities.
Changes · 7
10 tools: 7 change things and 3 only read.
Scanned Oct 21, 2026
- Deletes or cancels0Claude Code: deny
- Can't be undone0Claude Code: ask
- Changes things7Claude Code: ask: see these tools
- Only reads3Claude Code: allow: see these tools
No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.
claude mcp add --transport http close-api https://mcp.close.city/mcpTools
Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.
10 tools
Changes things 7Claude Code: ask
blocks_in_areaPer-block travel times for every census block in an area (metered: 1 token per returned row).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Per-block travel times for every census block in an area (metered: 1 token per returned row). Give place_geoid (from find_place) for a whole city, or center {lat, lon} + radius_m. Rows carry a numeric mode_id.
isochroneThe area reachable from a location within a time budget, as GeoJSON contours (metered: 10 tokens per contour).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it The area reachable from a location within a time budget, as GeoJSON contours (metered: 10 tokens per contour). Give block_geoid or lat+lon. Defaults to a single 30-minute contour; ask for more only when needed (bodies can be large).
join_close_plusGet a Stripe Checkout URL for the Close+ membership ($10/month: 5,000 API tokens granted monthly plus member features on the close.city map).No findings
Why it is in this group
- The name "join_close_plus" says "close": a word for a change.
- The input takes a statement or command to run (input.code), which can change anything it can reach.
Description, as the server wrote it Get a Stripe Checkout URL for the Close+ membership ($10/month: 5,000 API tokens granted monthly plus member features on the close.city map). The user pays in their own browser: give them the returned URL and stop. Needs a fresh six-digit code from request_sign_in, read by the user from their own inbox.
nearby_poisNearby points of interest and the travel time to each, from a location (metered: 1 token per returned row).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Nearby points of interest and the travel time to each, from a location (metered: 1 token per returned row). One origin: block_geoid or lat+lon; keep limit small to control spend and context size. Many origins (up to 250): block_geoids or points — one batch call and one rate-limit request, rows tagged by origin, no limit/pagination, so filter with type/mode/max_minutes. Batching saves requests and context, not tokens: it still charges per row. A non-empty truncated (+ truncated_reason) means the balance or row budget cut the batch short.
redeem_codeComplete sign-up with the six-digit code the user received, and return a new API key (shown once).No findings
Why it is in this group
- The input takes a statement or command to run (input.code), which can change anything it can reach.
Description, as the server wrote it Complete sign-up with the six-digit code the user received, and return a new API key (shown once). Call request_sign_in first. The key grants 5,000 free tokens; store it and pass it as the Authorization bearer on future calls.
request_sign_inStart free sign-up for the user: email them a six-digit code.No findings
Why it is in this group
- The name "request_sign_in" says "request": a word for a change.
Description, as the server wrote it Start free sign-up for the user: email them a six-digit code. The user must read the code from their own inbox and give it to you, then call redeem_code. This is how an agent gets the user an API key (5,000 free tokens, no card).
walkability_summaryFastest travel time from a location to each destination category, by mode (metered: 1 token per returned row).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Fastest travel time from a location to each destination category, by mode (metered: 1 token per returned row). One origin: block_geoid or lat+lon. Many origins (up to 250): block_geoids or points — one batch call and one rate-limit request, with rows tagged by origin. Batching saves requests and context, not tokens: it still charges per row. A non-empty truncated (+ truncated_reason) means the balance or row budget cut the batch short. A missing category means it is not reachable within 30 minutes.
Only reads 3Claude Code: allow
find_placeLook up a US city or town by name (free, no key).No findings
Why it is in this group
- The name "find_place" says "find": a word for reading.
Description, as the server wrote it Look up a US city or town by name (free, no key). Returns matches with their census place GEOID and centre point (lon/lat). The entry point: feed a GEOID to blocks_in_area, or a centre to walkability_summary.
get_catalogList the travel modes and the destination-type taxonomy (free, no key).No findings
Why it is in this group
- The name "get_catalog" says "get": a word for reading.
Description, as the server wrote it List the travel modes and the destination-type taxonomy (free, no key). Use it to resolve type names to the numeric ids the other tools take. Modes are walk, bike, transit — there is no drive mode.
get_token_balanceCheck the token balance of the API key in use, without spending any tokens.No findings
Why it is in this group
- The name "get_token_balance" says "get": a word for reading.
Description, as the server wrote it Check the token balance of the API key in use, without spending any tokens. Works even at a zero balance. Requires the Authorization bearer key.
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Install
Pinned to version 1.2.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http close-api https://mcp.close.city/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__close-api__find_place",
"mcp__close-api__get_catalog",
"mcp__close-api__get_token_balance"
],
"ask": [
"mcp__close-api__walkability_summary",
"mcp__close-api__nearby_pois",
"mcp__close-api__isochrone",
"mcp__close-api__blocks_in_area",
"mcp__close-api__request_sign_in",
"mcp__close-api__redeem_code",
"mcp__close-api__join_close_plus"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as close-api. Review it before you use it.