Developers

Use the Index from your agent

Every score on the Index is readable by machines as well as people. Connect an MCP client for structured reports, or fetch the plain-text files below with no account at all.

MCP server

The Index tools live on Stunt Double’s remote MCP server (streamable HTTP):

https://app.stuntdouble.io/api/mcp

It signs in with OAuth 2.1 and dynamic client registration, so Claude, ChatGPT and other MCP clients connect with a Stunt Double account and no API key to copy. Scopes are mcp:read (enough for every Index tool), mcp:write and mcp:run, and access can be revoked at any time. Discovery: https://index.stuntdouble.io/.well-known/mcp/server-card.json.

search_index_domainsSearch tracked sites by domain or name, or read the top of the leaderboard. Filter by sector to compare peers.
get_index_reportA domain’s overall score, band and rank, per-category and per-provider scores, the frictions agents hit and the failing checks.
list_index_sessionsThe agent sessions behind a domain’s score, with their tasks and outcomes.

Plain-text files, no account needed

/llms.txt: what the Index is, how scores are made, the categories and the top domains.
/d/{domain}/fix-prompt.md: a domain’s findings as a Markdown prompt for a coding agent, regenerated after every run.
/badge/{domain}.svg: the embeddable score badge (add ?style=compact for the small one).
/sitemap.xml: every public page, including each domain’s scorecard at /d/{domain}.

Questions

Email support@stuntdouble.io or see the contact page.