fbi-crime-mcp-server MCP Server
FBI Crime Data Explorer — UCR estimates, NIBRS breakdowns, hate crimes, arrests, and agency data.
Publisher claimed. No tool list reported, and Pod has not connected to this server.
Status
Pod has not dialled fbi-crime-mcp-server yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.
Connect
Published as @cyanheads/fbi-crime-mcp-server on npm. Runs locally.
Known issues
8 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 5.
Most discussed
bug(instructions): server instructions direct agents to use decommissioned tools
Server version
0.1.2
mcp-ts-core version
^0.9.9
Runtime
Bun
Runtime version
1.3.11
Transport
All transports
Description
The instructions field passed to createApp() in src/index.ts (lines 47–52) tells agents to call four tools that are decommissioned and return ServiceUnavailable errors on every call:
instructions:
'FBI Crime Data Explorer MCP server. Provides access to UCR crime estimates, NIBRS incident breakdowns, agency offense counts, hate
[Read the thread](https://github.com/cyanheads/fbi-crime-mcp-server/issues/4) · 2026-05-26 · closed · 1 comment
### bug(fbi_get_leoka): deaths_by_region schema mismatch causes SerializationError on every call
### Server version
0.1.2
### mcp-ts-core version
^0.9.9
### Runtime
Bun
### Runtime version
1.3.11
### Transport
Streamable HTTP
### Description
`fbi_get_leoka` fails with a Zod `SerializationError` on every call (both `ytd` and `monthly` periods). The output schema declares `deaths_by_region` as `z.record(z.string(), z.number())`, but the live `/cde/leoka/ytd` and `/cde/leoka/monthly` APIs return it nested by killing type:
```json
{
"officer_death_by_geographic_region": {
"Fel
[Read the thread](https://github.com/cyanheads/fbi-crime-mcp-server/issues/3) · 2026-05-26 · closed · 1 comment
### bug(fbi_get_leoka): wrong CDE path prefix and data mapping mismatch for LEOKA endpoints
### Server version
0.1.0
### mcp-ts-core version
0.9.9
### Runtime
Node.js
### Runtime version
Node.js v25.9.0
### Transport
HTTP (Streamable HTTP)
### Description
`fbi_get_leoka` has two independent bugs:
**Bug 1 — wrong URL prefix.** The service calls `https://api.usa.gov/crime/fbi/cde/LATEST/leoka/ytd` and `https://api.usa.gov/crime/fbi/cde/LATEST/leoka/monthly`. Both return HTTP 404. The working paths are `https://api.usa.gov/crime/fbi/cde/leoka/ytd` and `https://api.usa.gov/crim
[Read the thread](https://github.com/cyanheads/fbi-crime-mcp-server/issues/2) · 2026-05-26 · closed · 1 comment
### bug(fbi-api): UCR base URL backend decommissioned — 10 of 12 tools return HTTP 404
### Server version
0.1.0
### mcp-ts-core version
0.9.9
### Runtime
Node.js
### Runtime version
Node.js v25.9.0
### Transport
HTTP (Streamable HTTP)
### Description
The UCR legacy base URL (`https://api.usa.gov/crime/fbi/ucr`) returns HTTP 404 on all paths, not just specific endpoints. The error body is:
404 Not Found: Requested route ('crime-data-api.fr.cloud.gov') does not exist.
This indicates the Cloud Foundry backend (`crime-data-api.fr.cloud.gov`) that api.usa.gov used
[Read the thread](https://github.com/cyanheads/fbi-crime-mcp-server/issues/1) · 2026-05-26 · closed · 1 comment
### feat(config): default MCP_SESSION_MODE to stateless across env, Docker, and src
`Dockerfile` sets `ENV MCP_SESSION_MODE="stateless"`, but `.env.example` carries a commented `# MCP_SESSION_MODE=stateful`, whose comment documents the value set as `stateful | stateless (default: stateful)`. The container and the same code run via `bunx`, `npm start`, or from source therefore resolve to different session modes — stateless in Docker, stateful everywhere else, since the framework schema defaults to `auto` and `auto` resolves to `stateful`.
Related: cyanheads/mcp-ts-core#376
##
[Read the thread](https://github.com/cyanheads/fbi-crime-mcp-server/issues/9) · 2026-08-22 · open · 0 comments
[See all 8 reports Pod holds for fbi-crime-mcp-server](/mcp/fbi-crime-mcp-server/issues).
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