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Agentcast MCP Server

local only

Agentcast runs on your own machine — the client starts it, so there is no endpoint to ping. 38 installs a week from npm. Last commit 13 Jun 2026.

Structured-output enforcer: extract and validate JSON from messy LLM text.

Installs per day peak 9 · avg 4 · +111% w/w
a month agotoday
38
Installs / week
npm · @mukundakatta/agentcast-mcp
1
Stars
0 open issues
13 Jun 2026
Last commit
no releases in 90 days
MIT
License
JavaScript

Nothing serious here today

Today is the operative word: we check Agentcast every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add agentcast -- npx -y @mukundakatta/agentcast-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "agentcast": {
      "command": "npx",
      "args": [
        "-y",
        "@mukundakatta/agentcast-mcp"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.agentcast]
command = "npx"
args = ["-y", "@mukundakatta/agentcast-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "agentcast": {
      "command": "npx",
      "args": [
        "-y",
        "@mukundakatta/agentcast-mcp"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "agentcast": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@mukundakatta/agentcast-mcp"
      ]
    }
  }
}

Alternatives to Agentcast

same job, measured the same way
JSON Contracts
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Streamparse
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Parse partial / truncated / messy JSON for LLM tool calls and structured outputs.

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S
Structured Data Check
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Structured data validator in one call: extracts JSON-LD, microdata and RDFa from a URL or raw HTM...

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AISchemaGate and DataContractGate
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AISchemaGate validates and repairs structured LLM output against a contract, plus DataContractGate.

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JsonMend
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Repair broken JSON from LLM output and validate it against a JSON Schema.

2 tools answering
Talonic
by talonicdev

Extract structured, schema-validated data from PDFs, scans, images, spreadsheets, and forms.

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GenPark JSON Schema Contract Validator
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Zero-dependency JSON schema subset validator ensuring LLM structured outputs strictly conform to con

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JSON Repair MCP
by grupoanesthy-spec

Repairs malformed JSON from LLM output, validated against a schema. Paid per call via Stripe.

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Agentcast — questions

Answers built from our own checks of this server.

Why is there no uptime for Agentcast?
Agentcast runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @mukundakatta/agentcast-mcp was installed 38 times last week.
How do I connect Agentcast?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @mukundakatta/agentcast-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Agentcast?
The npm package @mukundakatta/agentcast-mcp was installed 38 times in the last week. Week over week that is +111%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Agentcast open source?
Yes — it is published under the MIT licence, written in JavaScript and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.