---
title: "MCP, OpenAPI, JWKS, AgentSkills, llms.txt: A Glossary for Insurance Leaders Hearing These Terms for the First Time"
description: "Your CTO friend keeps mentioning MCP and AgentSkills. Here's the plain-English glossary so you can keep up — and ask the right questions on your next CRM evaluation."
url: https://unlockedcrm.ai/blog/mcp-ai-agent-glossary-insurance-crm
canonical: https://unlockedcrm.ai/blog/mcp-ai-agent-glossary-insurance-crm
category: "Education"
published: 2026-07-30
updated: 2026-07-30
author: "unLocked Team"
source: unLocked CRM — AI CRM for insurance agents
---

# MCP, OpenAPI, JWKS, AgentSkills, llms.txt: A Glossary for Insurance Leaders Hearing These Terms for the First Time

<p>The AI integration vocabulary is moving fast. Here's a one-page glossary written for insurance principals, agency owners, and ops leaders — not engineers.</p>

<h2>MCP (Model Context Protocol)</h2>
<p>An open standard from Anthropic that lets any AI client (Claude, Cursor, ChatGPT, etc.) connect to any external system through a uniform interface. Think USB for AI agents.</p>

<h2>OpenAPI 3.1</h2>
<p>A machine-readable description of an API — every endpoint, parameter, and response shape. Lets tools like ChatGPT Custom GPTs auto-generate integrations without human-written code.</p>

<h2>HMAC-SHA256</h2>
<p>A cryptographic signature method. Used to prove a webhook payload genuinely came from the sender it claims to. Standard in Stripe, Shopify, GitHub — and now insurance CRMs that take security seriously.</p>

<h2>JWKS (JSON Web Key Set)</h2>
<p>A public file at /.well-known/http-message-signatures-directory listing the public keys an AI bot uses to sign its requests. Lets your CRM verify "yes, this really is Claude calling."</p>

<h2>AgentSkills</h2>
<p>An emerging standard for declaring, at a domain level, "what an AI agent can do here." A single JSON file points to OpenAPI, llms.txt, sitemaps, JWKS — the whole discovery surface.</p>

<h2>llms.txt and llms-full.txt</h2>
<p>Plain-text site overviews aimed at LLM crawlers. llms.txt is the index. llms-full.txt is the entire site in one document — what an AI ingests when summarizing your platform.</p>

<h2>RFC 9727 (api-catalog)</h2>
<p>An IETF standard that declares "what's at this domain machine-readable." Lives at /.well-known/api-catalog.</p>

<h2>RFC 9421 (Web Bot Auth)</h2>
<p>A standard letting bots sign their HTTP requests so servers can verify them. Combats anonymous-bot abuse without blocking legitimate AI crawlers.</p>

<h2>X-Request-Id, X-Api-Version</h2>
<p>HTTP headers your CRM should return on every response. The first lets support trace any issue end-to-end. The second lets you upgrade safely.</p>

<h2>Bonus: "Agentic"</h2>
<p>Software architecture where AI agents (not just humans) are first-class users. An agentic CRM exposes tools, not just screens.</p>

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Source: [MCP, OpenAPI, JWKS, AgentSkills, llms.txt: A Glossary for Insurance Leaders Hearing These Terms for the First Time](https://unlockedcrm.ai/blog/mcp-ai-agent-glossary-insurance-crm) — unLocked CRM, the AI CRM built for insurance agents. Citation permitted with attribution and a link to https://unlockedcrm.ai/blog/mcp-ai-agent-glossary-insurance-crm.