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CATS MCP by usefulapi

by m190version 1.7.4i★ –iRuns in the cloud
Registry nameio.usefulapi/cats-ats

Install

Overview

Description from the maker (original English)

Read CATS candidates, jobs and pipelines, and make explicitly confirmed recruiting changes.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Install

Pick the AI app you use, then copy the settings.

Before you install

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://cats-ats.usefulapi.io/mcp

Run this in your terminal

claude mcp add --transport http cats-ats https://cats-ats.usefulapi.io/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "cats-ats": {
      "url": "https://cats-ats.usefulapi.io/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "cats-ats": {
      "type": "http",
      "url": "https://cats-ats.usefulapi.io/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://cats-ats.usefulapi.io/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.

  • cats_get_site

    The CATS site (account) this API key belongs to: id, mode (recruiter or employer) and subdomain. GET /site.

  • cats_list_users

    List the CATS users (recruiters) with id, name, title and access level. Use the ids as owner or assignee. GET /users.

  • cats_list_candidates

    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.

  • cats_get_candidate

    One candidate by id (personal data). GET /candidates/{id}.

  • cats_search_candidates

    Free-text search over candidates (name, email, skills, resume text...), paged. GET /candidates/search?query=.

  • cats_filter_candidates

    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, filt

  • cats_list_candidate_pipelines

    The jobs a candidate is in the pipeline for, with rating, workflow and current status id. GET /candidates/{id}/pipelines.

  • cats_list_candidate_activities

    The activity log of a candidate (calls, meetings, notes, pipeline changes), paged. GET /candidates/{id}/activities.

  • cats_list_candidate_tasks

    Tasks attached to a candidate. GET /candidates/{id}/tasks.

  • cats_list_candidate_attachments

    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.

  • cats_list_jobs

    List job orders with title, location, company, recruiter, status and workflow ids, dates. Paged. GET /jobs.

  • cats_get_job

    One job order by id, with its description. GET /jobs/{id}.

  • cats_search_jobs

    Free-text search over job orders, paged. GET /jobs/search?query=.

  • cats_list_job_pipelines

    The candidates in the pipeline of a job: pipeline id, candidate id, rating and current status id. Paged. GET /jobs/{id}/pipelines.

  • cats_list_job_statuses

    The statuses a job order can have (Active, OnHold, Closed...). GET /jobs/statuses.

  • cats_list_pipelines

    List candidate-to-job pipelines (candidate id, job id, rating, workflow id, status id), paged. GET /pipelines.

  • cats_get_pipeline

    One pipeline (a candidate on a job) by id. GET /pipelines/{id}.

  • cats_filter_pipelines

    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.

  • cats_get_pipeline_status_history

    The status changes of a pipeline over time (status, who, when). GET /pipelines/{id}/statuses.

  • cats_list_workflows

    The pipeline workflows (sets of statuses such as Contacted, Interviewing, Offered). GET /pipelines/workflows.

  • cats_list_workflow_statuses

    The statuses of one pipeline workflow (id, title, prerequisites, triggers). Use the ids with cats_change_pipeline_status. GET /pipelines/workflows/{id}/statuses.

  • cats_list_companies

    List client companies (name, address, website, owner), paged. GET /companies.

  • cats_get_company

    One company by id. GET /companies/{id}.

  • cats_search_companies

    Free-text search over companies, paged. GET /companies/search?query=.

  • cats_list_contacts

    List client contacts (personal data: name, title, emails, company), paged. GET /contacts.

  • cats_get_contact

    One client contact by id (personal data). GET /contacts/{id}.

  • cats_search_contacts

    Free-text search over client contacts, paged. GET /contacts/search?query=.

  • cats_list_tasks

    List tasks (description, priority 1-5, due date, assignee, completion, the record it is about), paged. GET /tasks.

  • cats_get_task

    One task by id. GET /tasks/{id}.

  • cats_list_activities

    The site-wide activity log (calls, emails logged, meetings, notes) with the record each is about, paged. GET /activities.

  • cats_add_candidate_activity

    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}/a

  • cats_create_task

    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.

  • cats_change_pipeline_status

    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

  • cats_create_candidate

    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

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 50 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 34 tool descriptions and found no hidden instructions to the AI

Compared with others in Otheri

  • More stars than 0% of the other 32568 servers in this category
  • Published to the registry more recently than 99% of the other 32568 servers in this category
  • Basic checks equal to or better than 100% of the other 32568 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is CATS MCP by usefulapi safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.7.4) reached the registry today.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, FlyDocs

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago
Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday
Install

FlyDocs

by flydocs.ai

Spec-driven development workflow: your agent works issues, sessions and the status lifecycle.

Runs on your computerUpdated today
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

CATS MCP server

Connect

  • Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://cats-ats.usefulapi.io/mcp.
  • Claude Code: claude mcp add --transport http cats-ats https://cats-ats.usefulapi.io/mcp, then run /mcp to log in.
  • VS Code: Add to VS Code.
  • Cursor and other clients: add the URL as a remote MCP server:
{

"mcpServers": { "cats-ats": { "url": "https://cats-ats.usefulapi.io/mcp" } } }

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your CATS credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/cats-ats/

Tools

ToolTypeWhat it does
cats_get_sitereadGet CATS site
cats_list_usersreadList users
cats_list_candidatesreadList candidates
cats_get_candidatereadGet candidate
cats_search_candidatesreadSearch candidates
cats_filter_candidatesreadFilter candidates
cats_list_candidate_pipelinesreadList a candidate's pipelines
cats_list_candidate_activitiesreadList a candidate's activities
cats_list_candidate_tasksreadList a candidate's tasks
cats_list_candidate_attachmentsreadList a candidate's attachments (metadata)
cats_list_jobsreadList jobs
cats_get_jobreadGet job
cats_search_jobsreadSearch jobs
cats_list_job_pipelinesreadList a job's pipeline
cats_list_job_statusesreadList job statuses
cats_list_pipelinesreadList pipelines
cats_get_pipelinereadGet pipeline
cats_filter_pipelinesreadFilter pipelines
cats_get_pipeline_status_historyreadGet pipeline status history
cats_list_workflowsreadList pipeline workflows
cats_list_workflow_statusesreadList workflow statuses
cats_list_companiesreadList companies
cats_get_companyreadGet company
cats_search_companiesreadSearch companies
cats_list_contactsreadList contacts
cats_get_contactreadGet contact
cats_search_contactsreadSearch contacts
cats_list_tasksreadList tasks
cats_get_taskreadGet task
cats_list_activitiesreadList activities
cats_add_candidate_activitywriteAdd an activity (note) to a candidate
cats_create_taskwriteCreate a task
cats_change_pipeline_statuswriteMove a candidate to another pipeline status
cats_create_candidatewriteCreate a candidate
cats_usage_statusmetaUsage status (free-tier meter)
cats_request_featuremetaRequest a missing feature
cats_upgrademetaUpgrade to Pro or Pro+
cats_cancel_subscriptionmetaCancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

PlanPriceLimit
Free (per connected CATS site)$050 tool calls / month
Pro (per connected CATS site)$9/mo or $90/yr (2 months free)Unlimited*

\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.

Pro covers this server only. Subscribe with cats_upgrade (it returns a Stripe Checkout link). Cancel any time with cats_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running cats_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

License

MIT

Access, personal data and limits

Create a v3 API key in CATS under Administration → API Keys. Legacy Transaction Codes do not work. The generation form offers no read-only scope selector. Authorize UsefulAPI and your selected AI client to process only data you are entitled to share. CATS account eligibility and vendor charges remain separate from UsefulAPI plans. This independent connector makes no claim of vendor approval or endorsement.

Candidate/contact records contain personal information. Do not use this workflow for government IDs, health data, personal financial information or other CATS Prohibited Data. Known credential and sensitive financial/health fields and HAL link blocks are filtered; customers must still review free text and custom fields. Tool results reach your chosen AI client and LLM provider, whose privacy and retention policies also apply. Revoke the API key in CATS to stop vendor access; disconnect UsefulAPI to end this connection.

CATS documents a rolling 500 API requests/hour limit; its counter scope is not specified. Collection pages default to 25, maximum 100. Authentication is capped at 10 seconds/64 KiB; operation replies at 30 seconds/8 MiB. Billing follows the verified CATS site ID, so rotation of a key within the same site keeps the account identity.

Changes and automation

All four writes require confirm:true: create a candidate, log candidate activity, create a task or change pipeline status. Assigned tasks may notify a user. No email/SMS-send request is made by an activity note, even when its activity type is email or text_message. Independently configured account automation and webhooks can still react to changes.

Pipeline moves read the workflow/status metadata, explicitly request every returned trigger be suppressed with fire:false, and send create_activity=false. An already-current status makes no write. Preflight reads are not an atomic lock, so concurrent changes remain possible; independent webhooks are not suppressed. No email delivery, delete, attachment download, bulk-export endpoint or webhook-management tool is exposed.

No vendor request is automatically replayed. Creates require the documented 201 and a matching Location record ID; inconsistent or uncertain acknowledgements are errors. Inspect CATS before retrying a write. Date-only task/activity dates are sent at midnight UTC.

Verification

The 34 vendor tools were checked against the current API reference and local mocks. Actual own-trial reads verified account identity and HAL response structures, including vendor-supplied sample records. No real customer recruiting records or business writes were tested. Current terms allow customer-directed third-party software, and the vendor publishes external API-key setup guidance; this does not assert CATS reviewed UsefulAPI.

References: API v3, terms, external-key setup.

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