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.
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.
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.
claude mcp add agentcast -- npx -y @mukundakatta/agentcast-mcp
{
"mcpServers": {
"agentcast": {
"command": "npx",
"args": [
"-y",
"@mukundakatta/agentcast-mcp"
]
}
}
}
[mcp_servers.agentcast]
command = "npx"
args = ["-y", "@mukundakatta/agentcast-mcp"]
{
"mcpServers": {
"agentcast": {
"command": "npx",
"args": [
"-y",
"@mukundakatta/agentcast-mcp"
]
}
}
}
{
"servers": {
"agentcast": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@mukundakatta/agentcast-mcp"
]
}
}
}
JSON contract registry and validator for structured LLM and agent outputs.
Parse partial / truncated / messy JSON for LLM tool calls and structured outputs.
Structured data validator in one call: extracts JSON-LD, microdata and RDFa from a URL or raw HTM...
AISchemaGate validates and repairs structured LLM output against a contract, plus DataContractGate.
Repair broken JSON from LLM output and validate it against a JSON Schema.
Extract structured, schema-validated data from PDFs, scans, images, spreadsheets, and forms.
Zero-dependency JSON schema subset validator ensuring LLM structured outputs strictly conform to con
Repairs malformed JSON from LLM output, validated against a schema. Paid per call via Stripe.
Answers built from our own checks of this server.