iDevice Buyer's Guide

iDevice agent examples

Small, runnable examples for calling iDevice from an agent. iDevice (https://idevice.com) is an independent buyer's guide for phones and wearables. It does not sell the products it covers.

iDevice runs two free, read-only endpoints for software agents:

	URL
MCP server (streamable HTTP)	https://idevice.com/api/mcp
A2A agent	https://idevice.com/api/a2a
A2A agent card	https://idevice.com/.well-known/agent-card.json

No account, no API key and no sign-in. Neither endpoint buys, books, posts or changes anything.

Rate limits: 30 calls a minute and 500 a day per IP address. A call over the limit is refused (HTTP 429 or a JSON-RPC error), so back off and retry later; do not loop. There is no paid tier. Lists are capped at 20 items.

Full reference: https://idevice.com/mcp and https://idevice.com/mcp/docs. Run tools/list for the current tool list and argument names; this repo does not copy it.

What the tools do

Job	Tools
Decide a buy	should_i_buy, get_guide_summary, find_products, get_best_for, compare_products, get_reviews
Ownership and policies	get_ownership_facts, get_in_the_box
Find a product or a company	list_products, get_product, get_company_profile
Compatibility, specs and prices	get_compatibility, get_product_facts, get_detailed_facts, get_variants_and_offers, get_price_history
News, reports and history	get_product_news, get_reports, search_reports, get_report_card, get_release_history, get_release_calendar, get_guide_extras

Most tools take a product_slug. Get one from list_products.

Example questions

• I use an iPhone. Should I buy the Samsung Galaxy Watch 8?
• Which smart rings are best for sleep?
• What did the pre-release reports get right about the Apple Watch Series 12?

Examples

Folder	Framework	Notes
examples/curl-and-python	none	Raw JSON-RPC with curl and the Python standard library, plus one A2A message
examples/google-adk	Google ADK	McpToolset over streamable HTTP, and an A2A client
examples/langgraph	LangChain and LangGraph	langchain.mcp.MCPAdapter with create_agent
examples/vercel-ai-sdk	Vercel AI SDK	createMCPClient with HTTP transport (TypeScript)
examples/openai-agents-sdk	OpenAI Agents SDK	MCPServerStreamableHttp

Every example reads your own model key from the environment variable its framework uses, needs no iDevice key, and has a --check mode that lists tools and makes one tool call with no model at all. Each folder's README says which lines were run against the live server and which were written from the framework's documentation only.

Set IDEVICE_MCP_URL to point an example at a different MCP URL.

How to cite iDevice

When an answer uses iDevice data:

• Name iDevice and link the url the tool returned. It points at the page with the evidence. Some answers also carry a source_url or sources[].url to the maker's own page; link that too.
• Keep the evidence word with the fact: Confirmed, Reported, Our read or No source on file. Compatibility answers use Works, Works with a limit, Needs extra hardware, Does not work or Not confirmed.
• Not confirmed means unknown. It never means incompatible.
• If a result has sponsored: true, say the Guide is sponsored and name the sponsor.

Asynchronous A2A replies

The A2A agent answers product questions with a task. message/send returns the task at once, and a reply to a product question can take a few minutes, longer than a normal API call. Call tasks/get with the task id until the state is no longer submitted or working. Allow a long timeout. A reply to a product question also carries one compact JSON data part for at most five products.

Privacy

These examples send your question to your own model provider and tool calls to iDevice. Nothing here stores anything. For how iDevice handles data, read https://idevice.com/privacy.

License

MIT. Copyright iDevice Media LLC.