kodiak-mcp

Verifiable fact-checking for agents. An MCP server that lets an agent check a factual claim before relying on it — and get back a verdict, a calibrated confidence, cited sources, and a tamper-evident certificate anyone can verify. Built so a pipeline can't silently ship confabulated facts.

Install

Add to your MCP client config (Claude Code, Copilot, etc.):

{
  "mcpServers": {
    "kodiak": {
      "command": "npx",
      "args": ["kodiak-mcp"],
      "env": { "KODIAK_API_KEY": "your-key" }
    }
  }
}

Get an API key at https://azurecarbon.com.

Tools

• kodiak_check_claim — verify one factual claim. Args: claim (required), depth (1–5, default 3). Depth 1–3 are synchronous and return the certificate directly. Depth 4–5 return a job_id immediately and run in the background — poll with kodiak_check_status (this keeps long forensic checks from being killed by MCP client tool timeouts). Returns verdict (supported / false / mixed / unsupported), confidence (0–100), citations, sub-claim breakdown, certificate_id, and a verify_url. Costs a few cents of credit per call.
• kodiak_check_status — poll a depth-4-or-5 background check. Args: job_id. Returns { status: "queued" | "running" | "completed" | "failed", ... } with the full certificate when done, or an error + auto-refund note when failed. Free.
• kodiak_verify_certificate — recompute a certificate's hash chain to confirm the verdict, sources, and issue time are exactly as certified. Args: certificate_id. No key or credits required.
• kodiak_credits — check your credit balance and current per-depth pricing.

Coming next

• kodiak_check_document — verify a whole document, not one claim at a time. Runs Kodiak's counter-argument survival kernel over every check-worthy assertion and returns a document-level defect report + per-claim breakdown. This is the "verify this before I act on it" workflow. In beta at the API layer; MCP exposure lands with the next release.

Why it's different

Every certificate is hash-chained and externally anchored (Buoy + OpenTimestamps/Bitcoin), so a verdict's provenance is provable after the fact, not merely asserted. Verify any certificate independently at https://azurecarbon.com/verify/{certificate_id} — including ones you didn't produce.

Configuration

| Env | Required | Default | |---|---|---| | KODIAK_API_KEY | for check + credits | — | | KODIAK_URL | no | https://azurecarbon.com |

MIT · github.com/bildow/kodiak