Blog
Everything you need to turn any API into a Model Context Protocol server with Cast — from first principles to production recipes.
What the Model Context Protocol is, how MCP servers work, and how your existing API fits in.
MCP is the open standard that lets AI assistants like Claude use external tools and data. Here's what it is, how it works, and why it matters for any company with an API.
June 20, 2026
9 min read
An MCP server exposes your tools and data to AI clients over a standard protocol. We break down the architecture, transports, tools, and how a request actually flows end to end.
June 19, 2026
8 min read
Your API already has an OpenAPI (Swagger) spec. Here's how each operation maps to an MCP tool, what gets lost or transformed, and how to generate a working server without writing code.
June 18, 2026
8 min read
REST powers apps, function calling powers a single model, and MCP makes tools portable across every AI client. We compare all three and show when to reach for each.
June 17, 2026
7 min read
How SaaS teams, platform engineers, agent builders, and data teams put MCP to work.
Your customers want to use your product from Claude, Cursor, and their own agents. Shipping an official MCP server is the new public API. Here's the playbook for SaaS teams.
June 16, 2026
8 min read
Wrap your internal APIs as MCP servers so engineers, ops, and support can drive them from AI — safely, with auth handled server-side and destructive tools switched off.
June 15, 2026
8 min read
If you're building agents, MCP is how you give them reliable, reusable tools instead of brittle one-off integrations. A practical guide for agent and AI app developers.
June 14, 2026
8 min read
Quality Assurance teams can exercise APIs, validate responses, and reproduce bugs in plain language — no scripts. Here's how to wire your API into an MCP server in about five minutes.
June 21, 2026
8 min read
Turn your internal data and metrics APIs into MCP tools so analysts and stakeholders can self-serve answers in natural language — without new dashboards or SQL access.
June 13, 2026
7 min read
Step-by-step guides for wiring real APIs and production features into your MCP server.
A step-by-step recipe to expose Stripe's REST API as a secure MCP server — read-only by default — so you can pull customers, invoices, and balances straight from your AI client.
June 12, 2026
7 min read
Expose the GitHub REST API as MCP tools so your AI client can read issues, PRs, and repos. Covers token auth, choosing safe tools, and the connect snippet.
June 11, 2026
7 min read
Serve your MCP endpoint from mcp.yourdomain.com instead of a shared URL. Walk through the DNS records, certificate validation, and verification flow end to end.
June 10, 2026
7 min read
Once agents are calling your tools, you need visibility and guardrails. Here's how to read tool-call logs, watch analytics, and apply rate limits to keep things safe.
June 9, 2026
7 min read
Cast's test-server ships five auth modes. Each post wires that mode to a live MCP server — every UI field explained.
The fastest path to a working MCP server. Start with an unauthenticated API and have a live endpoint in under two minutes.
June 1, 2026
4 min read
Secure your MCP server with an API key. Learn how to configure Cast's API Key Header mode and which UI fields to fill in.
June 2, 2026
5 min read
Set up OAuth with a known client_id and client_secret. Covers Cast's OAuth mode with full PKCE and state support.
June 3, 2026
6 min read
Skip the manual client setup. Use OAuth DCR so Cast registers itself automatically on the first connection.
June 4, 2026
7 min read
Your API issues JWTs after a username/password login. Here's how to configure Cast to handle the full token lifecycle.
June 5, 2026
6 min read