Connect a source-linked evidence tool.

Start with a specific task

Does exact output prove a speedup?

Use the Backblaze D2 review to distinguish exact development replay from measured acceleration, fresh holdout evidence and production qualification.

Does an agent identity authorise a tool action?

Separate an AgentCore workload identity from tool permission, credential policy and user intent using an attributable AWS documentation reference.

Does an expired signing certificate invalidate an artifact?

Understand Sigstore signing-time evidence, certificate validity and trust-policy limits without confusing signature verification with artifact safety.

Connect through MCP

Add a remote Streamable HTTP server in your MCP client using this URL:

https://varexis.tech/mcp

Authentication: none. This public connector exposes three free, read-only tools. Do not send Stripe credentials or your paid INDEX key to it.

• find_evidence_questions: search reviewed question variants and plain-language worked examples, returning route IDs and the wording that matched, up to 20 per page.
• preview_evidence_answer: return the full reviewed answer, source records, limitations and snapshot hash for one route ID.
• get_index_access_options: check checkout availability, costs and the purchase contract without starting a purchase.

Try Does exact output prove a speedup? or signing certificate, then pass a returned route ID to the preview tool. A result suggests a scoped source or example to inspect; it does not answer an arbitrary new claim. The connector does not fetch arbitrary URLs, assess new claims or execute tools on your systems.

Machine-readable connector card

What does payment add?

The free preview already includes the answer, public source records and their hashes. You can save that response yourself. Payment adds a server-saved copy for later retrieval; the receipt option also records delivery and verified payment. It supplies no additional experimental evidence or independent assurance. If you only need to read or keep the current answer locally, the free preview is sufficient.

Save an answer through the portal or REST API

The MCP connector covers free discovery and previews. Purchases and authenticated retrieval use the existing portal or REST API. A single saved snapshot is £5, an unsigned Evidence Receipt is £19, Research is £29 per month and Developer/API is £149 per month with 100 new queries per paid period. Prices exclude applicable VAT.

For a purchase, retain a private access key, authorise the exact product and any renewal, complete Stripe checkout, then retrieve using the same key. The server verifies payment. Discovery is not permission to spend. Paid access uses the same public evidence and does not provide fresh research or a signed qualification receipt.

Preview, purchase and retrieve · Live REST API contract · Terms and failure handling