What this guide helps you decide
Create one approved source of truth for human and agent buyers.
The questions behind the decision
- How can website, API and MCP answers stay consistent?
- Which product facts need expiry dates?
- What should an agent return when facts conflict?
What this page adds
This page turns the question "How can website, API and MCP answers stay consistent?" into a reproducible method for create one approved source of truth for human and agent buyers, with required evidence and explicit failure conditions.
Define the canonical fact model
Store fact value, scope, source, owner, verification state, last review and expiry. Keep observed website text separate from approved company truth.
Render, do not rewrite
Public pages can explain facts for people while APIs and MCP return structured fields, but both should resolve to the same approved object.
Detect conflicts before activation
Block personalization and automated publication when pricing, offer, proof or conversion paths conflict. Ask the owner for the missing decision.
Verify every public surface
Fetch the human page and machine endpoints after a change. Save hashes or equivalent receipts so stale surfaces can be detected.
Multi-channel distribution plan for this buyer question
This guide is the canonical owned answer to: How can website, API and MCP answers stay consistent?. Distribution should create independent, useful encounters with that decision rather than duplicate the page across many URLs.
| Surface | Job | Eli execution boundary |
|---|---|---|
| ChatGPT and Reddit | Learn from authentic comparisons and workflows | Research relevant threads, contribute only when a person can add real experience, disclose the Eli connection and keep the answer balanced |
| Google and Gemini | Keep the canonical answer crawlable, current and useful | Preserve this URL, named sources, internal links, structured data and a direct answer to the prompt |
| Perplexity and third-party sites | Earn independent corroboration | Give publishers testable evidence and editorial freedom instead of purchasing or scripting praise |
| YouTube | Create a prompt-led spoken answer and accurate transcript | Use the buyer question as the title, answer it immediately and say the tradeoffs aloud |
| Expose the framework to practitioners and collect objections | Publish a founder lesson, then use substantive feedback to improve this page | |
| Measurement | Detect channel impact and citation decay | Combine direct referrals with self-reported discovery and repeat comparable prompt checks at 30, 45 and 90 days |
Download the [page-specific distribution pack](/resources/website-api-mcp-product-fact-consistency/growth-pack) for the six human-final execution briefs.
Where this fits
For what makes a website usable by AI agents, see the agent-ready website guide. For how assistants find, cite and recommend a company, see AI search for B2B.
Questions buyers ask next
How can website, API and MCP answers stay consistent?
Product facts should be authored once with provenance, review state and expiry, then rendered consistently across the website, API and MCP. Pricing, availability, integrations, proof and limitations must not diverge by channel. When a fact is unknown or conflicting, every surface should expose the uncertainty instead of letting an AI layer invent a resolution.
Which product facts need expiry dates?
Public pages can explain facts for people while APIs and MCP return structured fields, but both should resolve to the same approved object.
What should an agent return when facts conflict?
Fetch the human page and machine endpoints after a change. Save hashes or equivalent receipts so stale surfaces can be detected.
Primary sources
Related guides
Check your own AI-search gap
Use the decision behind “How can website, API and MCP answers stay consistent?” as your starting point. Run the free AI Citation Gap Checker to inspect the current public evidence. To keep monitoring the question and prepare a supported website improvement, Eli Free covers one site and one diagnostic, with the findings kept, no card and no expiry. External rankings and AI recommendations are never guaranteed.