openwarrant-verify

MCP serverDev tools

openwarrant-verify lets your AI fact-check citations before you rely on them. It resolves references, matches them to the claims they are meant to support, and rechecks arithmetic so the numbers hold up. It is free to start.

No key or account is asked for. Not verified by us yet: Ahel has not run a call through it.

Connect your AI Use it in a pipeline

Then ask your AI: use openwarrant-verify to verify references

Details

Available today. Use it as a step in a pipeline you build, or from your connected AI.

No key or account is asked for. Not verified by us yet: Ahel has not run a call through it.

After adding it, ask your AI to verify the citations and figures in a draft or document. It is free to start.

What your AI can do with it

Resolve citations to their sources
Match citations to the claims they support
Check whether a source actually backs up a claim
Recheck arithmetic in your text

Install openwarrant-verify

The server’s own address, for the clients that take one directly. Or connect Ahel once and every client you use reads it from one address, with the account kept on Ahel rather than in each client’s config.

Claude Code
claude mcp add --transport http --scope user openwarrant-verify 'https://www.stipple.sh/mcp-verify'
Run it once in your project, then open /mcp to approve any sign-in the server asks for.
Claude Desktop
https://www.stipple.sh/mcp-verify
Add a custom connector in Settings, paste this address, and approve the sign-in.
Cursor
cursor://anysphere.cursor-deeplink/mcp/install?name=openwarrant-verify&config=eyJ1cmwiOiJodHRwczovL3d3dy5zdGlwcGxlLnNoL21jcC12ZXJpZnkifQ==
Open the link and Cursor adds the server at that address.
ChatGPT
https://www.stipple.sh/mcp-verify
In Settings, enable Developer mode, create an MCP app, and paste this address. Your plan and workspace must allow custom apps.
Codex
codex mcp add openwarrant-verify --url 'https://www.stipple.sh/mcp-verify'
Run it once, then sign in with codex mcp login openwarrant-verify if the server asks for an account.

From the project's README

As published by sketchjar/stipple-mcp in README.md. This repository publishes several servers, so only the opening is shown here.

Documents in. Answers your agents can act on.

Stipple is a hosted MCP server for document work: forensic authenticity signals, structured field extraction, Australian identity checks, adverse-media and sanctions screening, AU/NZ government tender search, AI-written-text detection, and citation verification for research reports.

No install, no signup — an anonymous free tier works immediately.

Connect

claude mcp add --transport http stipple https://www.stipple.sh/mcp

Or in any MCP client config:

{ "mcpServers": { "stipple": { "type": "http", "url": "https://www.stipple.sh/mcp" } } }

Endpoint: https://www.stipple.sh/mcp (Streamable HTTP)
Always the www. host — the apex domain redirects, and a POST through the redirect fails for non-browser clients.
Auth: none required. An optional free API key (POST /v1/keys) gives a private credit allowance; send it as Authorization: Bearer stp_....

Tools (13)

Shortened here. Read the whole README on GitHub.

Tools it offers (1)

What this server listed when Ahel dialed its public endpoint in Oct 2026, with no key and no account of yours. The names are the server’s own.

verify_references

Signals

Last commit: Aug 2026

Advanced

Delivery: openwarrant-verify MCP server → your Ahel connector (mcp.ahel.ai) → your AI.
Item type: mcp-server
Key: sh-stipple-openwarrant-verify
Source: github.com/sketchjar/stipple-mcp
Hosted endpoint: https://www.stipple.sh/mcp-verify

github.com/sketchjar/stipple-mcp

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