Koskamo

Haystack MCP

An official MCP server operated by Haystack that enables AI assistants to search live job listings from employer career sites, retrieve employer reply statistics, and, with authentication, manage job applications and inbox replies via Haystack's AI agent.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Haystack MCP logo, by HaystackVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-06Operated by Haystack
MCP endpoint (Streamable HTTP)
https://haystackapp.io/mcp
Vendor documentation

What its tools do

4 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (4)

4 of 4 have a description · 4 of 4 declare behavior hints · 3 of 4 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Passed Official MCP Registry namespace is tied to haystackapp.io ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Search live jobs by role, location, or remote status
  • Check employer reply rates and application form requirements
  • List personal job matches and apply via AI agent
  • Read employer replies and interview invitations

Source and maintenance

Vendor evidenceRegistry 1.0.0
mcp-registry: io.haystackapp/jobs@1.0.0Project website

Protocol and capabilities

Server
haystack 1.0.0
MCP protocol negotiated in check
2025-06-18
Tools
4 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Haystack lists live jobs from employers' own careers sites (hundreds of thousands, in the US, UK, Canada, Australia, India and Europe), plus facts from applications Haystack's AI agent has sent: which employers reply, how fast, and what their forms ask. Use search_jobs to find roles, get_job for one role's details, employer_facts for a company, and application_system_facts for Greenhouse, Ashby, Workable, SmartRecruiters or Teamtailor. Always give the person the job's link. When a job says auto_apply, its auto_apply_url lets Haystack's AI agent fill in and submit the employer's form for them once they sign up (free to get started); they choose every job.

Tools

4 advertised

search_jobs — Search live jobs
Advertised by the server during the last successful anonymous check.
Advertised read-only

Search live jobs on Haystack, newest first. Filter by job title words, country, city, remote, and by what the advert says: no experience needed, no degree needed, visa sponsorship offered. Returns up to 20 jobs, each with its link, and an Auto Apply link when Haystack's AI agent can fill in and submit the employer's form.

search_jobs input schema
{
  "type": "object",
  "properties": {
    "city": {
      "type": "string",
      "description": "City, e.g. 'London', 'New York', 'Toronto'."
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 20,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "description": "Words in the job title, e.g. 'product manager', 'nurse', 'data analyst'."
    },
    "remote": {
      "type": "boolean",
      "description": "Only remote roles."
    },
    "country": {
      "type": "string",
      "description": "Country name or code, e.g. 'United States', 'UK', 'Canada', 'Germany'."
    },
    "no_degree": {
      "type": "boolean",
      "description": "Only roles whose advert says no degree is needed (or asks for a high school diploma or equivalent)."
    },
    "no_experience": {
      "type": "boolean",
      "description": "Only roles whose advert says no experience is needed or training is provided."
    },
    "auto_apply_only": {
      "type": "boolean",
      "description": "Only roles Haystack's AI agent can apply to."
    },
    "visa_sponsorship": {
      "type": "boolean",
      "description": "Only roles whose advert says the employer offers visa sponsorship."
    }
  },
  "additionalProperties": false
}
search_jobs annotations
{
  "title": "Search live jobs",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_job — Get a job
Advertised by the server during the last successful anonymous check.
Advertised read-only

One job's details by its Haystack id: title, employer, location, pay, work mode, skills, what the advert says (no experience, no degree, visa sponsorship), the description, and facts about applying to that employer from Haystack's data (reply rate, time to reply, form questions) when known.

get_job input schema
{
  "type": "object",
  "required": [
    "job_id"
  ],
  "properties": {
    "job_id": {
      "type": "string",
      "description": "The job's id from search_jobs."
    }
  },
  "additionalProperties": false
}
get_job annotations
{
  "title": "Get a job",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
employer_facts — Employer facts
Advertised by the server during the last successful anonymous check.
Advertised read-only

What Haystack knows about applying to an employer: live roles, the share of applications that got a reply, the median time to the first reply, how many fields its form has and the questions it asks. Pass no company to get the employers most likely to reply to an application.

employer_facts input schema
{
  "type": "object",
  "properties": {
    "company": {
      "type": "string",
      "description": "Employer name, e.g. 'Monzo', 'Stripe'. Leave out for the employers most likely to reply."
    }
  },
  "additionalProperties": false
}
employer_facts annotations
{
  "title": "Employer facts",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
application_system_facts — Application system facts
Advertised by the server during the last successful anonymous check.
Advertised read-only

Facts about an application system (ATS) from applications Haystack's AI agent sent: how many fields its forms have, the questions they ask most, and how fast employers on it reply. Without a system, the overall figures.

application_system_facts input schema
{
  "type": "object",
  "properties": {
    "system": {
      "enum": [
        "greenhouse",
        "ashby",
        "workable",
        "smartrecruiters",
        "teamtailor"
      ],
      "type": "string",
      "description": "The application system."
    }
  },
  "additionalProperties": false
}
application_system_facts annotations
{
  "title": "Application system facts",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (2 of 2 answered).

  1. 2026-11-07: 2 of 2 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
975 ms
95th percentile latency
975 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 975 ms · metadata changed · 4 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http haystack-mcp-haystackapp https://haystackapp.io/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add haystack-mcp-haystackapp --url https://haystackapp.io/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable haystack-mcp-haystackapp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "haystack-mcp-haystackapp": {
      "url": "https://haystackapp.io/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "haystack-mcp-haystackapp": {
      "type": "streamableHttp",
      "url": "https://haystackapp.io/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start haystack-mcp-haystackapp and inspect its tools.
VS Code configuration
{
  "servers": {
    "haystack-mcp-haystackapp": {
      "type": "http",
      "url": "https://haystackapp.io/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http haystack-mcp-haystackapp https://haystackapp.io/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://haystackapp.io/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "haystack-mcp-haystackapp": {
      "serverUrl": "https://haystackapp.io/mcp"
    }
  }
}

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