# HackerRank Work — MCP server on mcp.ai
> Connect your HackerRank Work account and use 3 tools for developer tools straight from your AI agent. Connect with your own API key. HackerRank Work enables coding interviews and technical assessments, providing developers with challenges and real-time collaboration for data-driven hiring decisions.

By: mcp.ai · official
Page: https://mcp.ai/hackerrank_work

## Connect (MCP protocol)
Remote MCP endpoint (HTTP, streamable): https://api.mcp.ai/p_hackerrank_work?ms=1787291520000
Add it as a custom/remote MCP connector, then authenticate when prompted.

## REST API (no MCP client required)
Every tool is also a REST endpoint, authed with a workspace API key.
Discover: GET https://api.mcp.ai/api/hackerrank_work/_endpoints   # public; lists every endpoint
Call:     POST https://api.mcp.ai/api/hackerrank_work/<endpoint>
  Authorization: Bearer sk_live_…   # create one at https://mcp.ai/settings/api-keys
  Content-Type: application/json
  Body: { …args }   →   { "ok": true, "tool": "<id>", "result": { … } }

## Developer docs
How to use (MCP or REST), markdown: https://mcp.ai/hackerrank_work/skill.md
Postman collection (v2.1): https://mcp.ai/hackerrank_work/postman.json

## Tools
- hackerrank_work_companies_list(path_hint?: string) — Tool to list all companies and their unique identifiers. Use when you need the company_unique_id for SSO metadata retrieval.
- hackerrank_work_sso_assertion_consumer_service(relay_state?: string, saml_response?: string, company_unique_id: string, raise_on_http_error?: boolean, raw_saml_response_xml?: string) — Tool to consume SAML assertions. Use when receiving SAMLResponse and RelayState from the Identity Provider for SSO sign-in.
- hackerrank_work_sso_sign_on_url() — Tool to get the SP-initiated SSO sign-on URL. Use when configuring SAML SSO with your identity provider.

## Example prompts
- "What can I do in HackerRank Work?"
- "Show me a summary of my HackerRank Work account"

## Links
Docs: https://mcp.ai/docs/mcps/hackerrank_work
Website: https://mcp.ai/mcps/hackerrank_work