Comprehensive Model Context Protocol server for managing Home Assistant through AI assistants.
Nothing to run from here
CATS MCP by usefulapi is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
93/100
tool-list score
34
tools declared
remote
at its publisher
—
calls last 7d
What it does
Read CATS candidates, jobs and pipelines, and make explicitly confirmed recruiting changes.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http cats-mcp-by-usefulapi https://cats-ats.usefulapi.io/mcp
# 2 — ask your agent for something these tools do
# cats_get_site, cats_list_users, cats_list_candidates and 31 more
CATS MCP by usefulapi costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Publishernot claimed
USAll 598 servers
usefulapi598 servers
25 categories
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Installation
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
Claude Codedeclared by this listing
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http cats-mcp-by-usefulapi https://cats-ats.usefulapi.io/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
Free on mcprush, and it answers at its publisher’s own address: this marketplace is not in the path, so there is no key of ours to hold and no card to add.
What it writes
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
What you approve
34 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
The CATS site (account) this API key belongs to: id, mode (recruiter or employer) and subdomain. GET /site.
No parameter schema on file.
List the CATS users (recruiters) with id, name, title and access level. Use the ids as owner or assignee. GET /users.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
List candidates (personal data: name, emails, address, employer, skills, notes), one page at a time, max 100 per page. Use cats_search_candidates or cats_filter_candidates to find specific people. GET /candidates.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
One candidate by id (personal data). GET /candidates/{id}.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| candidate_id | integer | yes | CATS candidate id. |
Free-text search over candidates (name, email, skills, resume text...), paged. GET /candidates/search?query=.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | Search text. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
Filter candidates by fields (read-only, although it is a POST): first_name, last_name, title, emails.primary, address.city/state/postal_code, country_code, current_employer, key_skills, notes, dates (date_created, date_modified), owner_id, is_hot... Each condition is {field, filter, value}; filters: exactly, contains, between {gte,lte}, greater_than, less_than, is_empty, geo_distance. Paged. POST
| Parameter | Type | Required | Notes |
|---|---|---|---|
| conditions | array | yes | One or more conditions. |
| match | string | no | How several conditions combine: all = AND (default), any = OR. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
The jobs a candidate is in the pipeline for, with rating, workflow and current status id. GET /candidates/{id}/pipelines.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| candidate_id | integer | yes | CATS candidate id. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
The activity log of a candidate (calls, meetings, notes, pipeline changes), paged. GET /candidates/{id}/activities.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| candidate_id | integer | yes | CATS candidate id. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
Tasks attached to a candidate. GET /candidates/{id}/tasks.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| candidate_id | integer | yes | CATS candidate id. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
File names, sizes and whether each file is a resume, for a candidate's attachments. Metadata only: file contents are never downloaded. GET /candidates/{id}/attachments.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| candidate_id | integer | yes | CATS candidate id. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
List job orders with title, location, company, recruiter, status and workflow ids, dates. Paged. GET /jobs.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
One job order by id, with its description. GET /jobs/{id}.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| job_id | integer | yes | CATS job id. |
Free-text search over job orders, paged. GET /jobs/search?query=.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | Search text. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
The candidates in the pipeline of a job: pipeline id, candidate id, rating and current status id. Paged. GET /jobs/{id}/pipelines.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| job_id | integer | yes | CATS job id. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
The statuses a job order can have (Active, OnHold, Closed...). GET /jobs/statuses.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
List candidate-to-job pipelines (candidate id, job id, rating, workflow id, status id), paged. GET /pipelines.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
One pipeline (a candidate on a job) by id. GET /pipelines/{id}.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| pipeline_id | integer | yes | CATS pipeline id. |
Filter pipelines by id, candidate_id, job_id, status_id, rating, date_created or date_modified (read-only, although it is a POST). Each condition is {field, filter, value}. Paged. POST /pipelines/search.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| conditions | array | yes | One or more conditions. |
| match | string | no | How several conditions combine: all = AND (default), any = OR. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
The status changes of a pipeline over time (status, who, when). GET /pipelines/{id}/statuses.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| pipeline_id | integer | yes | CATS pipeline id. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
The pipeline workflows (sets of statuses such as Contacted, Interviewing, Offered). GET /pipelines/workflows.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
The statuses of one pipeline workflow (id, title, prerequisites, triggers). Use the ids with cats_change_pipeline_status. GET /pipelines/workflows/{id}/statuses.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| workflow_id | integer | yes | Workflow id, from cats_list_workflows or a pipeline's workflow_id. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
List client companies (name, address, website, owner), paged. GET /companies.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
One company by id. GET /companies/{id}.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| company_id | integer | yes | CATS company id. |
Free-text search over companies, paged. GET /companies/search?query=.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | Search text. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
List client contacts (personal data: name, title, emails, company), paged. GET /contacts.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
One client contact by id (personal data). GET /contacts/{id}.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| contact_id | integer | yes | CATS contact id. |
Free-text search over client contacts, paged. GET /contacts/search?query=.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | Search text. |
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
List tasks (description, priority 1-5, due date, assignee, completion, the record it is about), paged. GET /tasks.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
One task by id. GET /tasks/{id}.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| task_id | integer | yes | CATS task id. |
The site-wide activity log (calls, emails logged, meetings, notes) with the record each is about, paged. GET /activities.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| page | integer | no | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | no | Results per page, 1-100 (default 25). |
WRITE: Requires confirm:true. log an activity (a call, meeting, note...) on a candidate's record. It only records the entry in CATS: no email/SMS-send request is made, even for type 'email' or 'text_message'. Creates a new entry each time (not idempotent). POST /candidates/{id}/activities.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| confirm | boolean | yes | Confirm this change to the CATS account. |
| candidate_id | integer | yes | CATS candidate id. |
| type | string | yes | Activity type; use 'other' for a plain note. |
| notes | string | yes | The note text. |
| regarding_job_id | integer | no | The job order this activity is about; omit for a general activity. |
| date | string | no | When it happened (ISO 8601); default now. |
WRITE: Requires confirm:true. create a task in CATS, optionally about a candidate, contact, company or job and assigned to a user. Creates a new task each time (not idempotent); CATS may notify the assignee. POST /tasks.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| confirm | boolean | yes | Confirm this change to the CATS account. |
| description | string | yes | What has to be done. |
| about_type | string | no | Kind of record the task is about; omit for a general task. Needs about_id. |
| about_id | integer | no | Id of that record. |
| assigned_to_id | integer | no | CATS user id of the assignee (see cats_list_users). |
| priority | integer | no | 1 (lowest) to 5. |
| date_due | string | no | Due date (ISO 8601); omit for ASAP. |
WRITE: Requires confirm:true. change the status of a pipeline (move a candidate to another stage of a job's workflow, e.g. Interviewing, Offered, Rejected). Get the pipeline id from cats_list_candidate_pipelines and the status id from cats_list_workflow_statuses. Requires confirm:true. Requests that status triggers (which can e-mail people or change records) be suppressed: every trigger attached t
| Parameter | Type | Required | Notes |
|---|---|---|---|
| confirm | boolean | yes | Confirm this change to the CATS account. |
| pipeline_id | integer | yes | CATS pipeline id. |
| status_id | integer | yes | The status to move to; must belong to the pipeline's workflow. |
WRITE: Requires confirm:true. create one candidate record (personal data) with name, optional contact details and notes. Refuses when CATS finds a duplicate (check_duplicate=true, the default). Creates a new record each time (not idempotent); no email-send request is made to the candidate and no login is created. POST /candidates.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| confirm | boolean | yes | Confirm this change to the CATS account. |
| first_name | string | yes | — |
| last_name | string | yes | — |
| string | no | Primary e-mail address (stored only, never mailed). | |
| phone | string | no | Phone number with country code. |
| phone_type | string | no | Phone type (default mobile). |
| title | string | no | Current job title. |
| current_employer | string | no | — |
| city | string | no | — |
| state | string | no | — |
| postal_code | string | no | — |
| country_code | string | no | ISO 3166 two-letter country code. |
| key_skills | string | no | — |
| source | string | no | Where the candidate came from. |
| notes | string | no | — |
| owner_id | integer | no | CATS user id of the record owner. |
| check_duplicate | boolean | no | Refuse to create when a duplicate exists (default true). |
Free
$0 forever
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install CATS MCP by usefulapi or to call it, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
—
Alert at 80% · then the tool returns a normal MCP error
Used this month: —
ATool-list grade · score 93 / 100
Release 1.8.2 · scanned 7 Nov 2026
Graded from the tools this server lists, not from its source code.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
Threat score100
Client score93
Findings0 threat · 1 capability
Capabilitymoderate
Coveragemanifest
Verificationnot in this report
Surface digestfa3c1f8c06c09008ceddcb4232764a9f64266563f7e8db48af96caf68e618d6f
Score vectorthreat 100 → client 93
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | moderate | capability blast radius (moderate) — client exposure if the model is manipulated | −3 |
| coverage-honesty | manifest | inspection depth (manifest) — how much of the target the scan could see | −4 |
score = clamp(round(threatScore − E_cap − E_ver − E_cov), 0, 100). No model, no opinion, no network call at scoring time: the same methodology version against the same bytes always produces this number, and every line above is a field of the report rather than a summary of it.
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
The scan read each tool’s name, description, input schema and annotations exactly as the server listed them the last time it answered us; no code was reviewed. We ask the server again about once a month, and a list that changed is graded again.
Tool surfaceread
Implementation sourcenot available
Package metadatanot available
Live transportnot available
The implementation source was not read — this reflects the declared tool metadata only.
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. moderate is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| cats_get_site | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_users | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_candidates | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_get_candidate | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_search_candidates | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_filter_candidates | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_candidate_pipelines | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_candidate_activities | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_candidate_tasks | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_candidate_attachments | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_jobs | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_get_job | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_search_jobs | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_job_pipelines | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_job_statuses | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_pipelines | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_get_pipeline | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_filter_pipelines | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_get_pipeline_status_history | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_workflows | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_workflow_statuses | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_companies | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_get_company | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_search_companies | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_contacts | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_get_contact | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_search_contacts | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_tasks | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_get_task | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_list_activities | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| cats_add_candidate_activity | external-sink | external-sink: keyword "sms", declares readOnlyHint: false, destructiveHint: true, openWorldHint: true |
| cats_create_task | external-sink | external-sink: declares readOnlyHint: false, destructiveHint: true, openWorldHint: true |
| cats_change_pipeline_status | external-sink | external-sink: declares readOnlyHint: false, destructiveHint: true, openWorldHint: true |
| cats_create_candidate | external-sink | external-sink: declares readOnlyHint: false, destructiveHint: true, openWorldHint: true |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
flow-1
Untrusted input can drive an external action even though no sensitive source is exposed.
Supply chain and provenance
Integrityfirst-seen
Surface digestfa3c1f8c06c09008
Scanned2026-11-07
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 1.8.2.
1.8.2
undated
latestNo release note was published with this version.
—
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