Plugin

Claim by Ouroboros Apps

Early access

Approved brand claims, offers, proof, voice, and banned phrases. For marketers and brand teams.

Copy gets checked against the claims and banned phrases you saved. If it isn't in the guide, the check says so.

Server URL

Connect

• Claude: Customize, then Connectors, then Add custom connector. Paste the URL and sign in.
• Cursor: add this to ~/.cursor/mcp.json or .cursor/mcp.json, then restart and sign in.
• Grok: grok.com/connectors, New Connector, Custom, then the URL.

ChatGPT's directory doesn't list this yet. Use developer mode until it does. That's the early-access route.

{
  "mcpServers": {
    "claim": {
      "url": "https://claim-continuity2.vercel.app/mcp"
    }
  }
}

Tools

These names and descriptions are what the server returns from tools/list before you sign in.

• list_brands Find the user's brands before saving language or checking copy. Use a returned id. Do not guess a brand. Page with offset.
• create_brand Create a brand when the user asks for one. Does not add claims, offers, proof, voice, or banned phrases.
• get_brand_guide Retrieve the brand's approved claims, offers (active and inactive), proof, voice, and banned phrases before writing copy. Approved claims are the only guarantees you may repeat. Only active offers may be stated. Inactive offers must not be
• save_approved_claim Store or revise a claim only after the user approves the exact statement. A claim is language the brand may say, including any guarantee the brand has actually approved. It is not an offer and it is not proof. Use status RETIRED when the us
• save_offer Store or revise a current offer only after the user approves the exact name and terms. Copy may state an offer only while active is true. Set active to false to withdraw an offer. Updates require offerId and expectedRevision from get_brand_
• save_proof Store evidence that backs one approved claim: a title, where it comes from, and what it shows. Proof does not approve a new claim, guarantee, discount, or offer. Link claimId when the evidence supports a saved claim. Pass proofId to revise
• save_brand_voice Store how this brand should sound. voiceSummary is the tone in plain language. voiceTraits are short labels such as plain, specific, or calm. Voice does not approve a claim, a guarantee, a discount, or an offer.
• save_banned_phrase Store a phrase the brand forbids. check_brand_copy rejects a draft that contains it. Matching ignores letter case and repeated spaces, and does not match inside a longer word. An identical phrase returns the existing row.
• remove_banned_phrase Remove a banned phrase after the user says that wording is allowed again. Does nothing to claims or offers.
• check_brand_copy Check draft copy against the saved brand guide. Rejects the draft when it invents a guarantee, invents a discount, uses a banned phrase, or states an offer that is not in the active approved set. A guarantee is language such as guarantee, w