# Best Buy Developer API vs Zillow in Claude

> Best Buy Developer scores 39.1 (E) to Zillow in Claude's 28.6 (F) for product search for shoppers. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/best-buy-vs-zillow-claude
- Markdown: https://www.anchorterminal.com/compare/best-buy-vs-zillow-claude.md (~2,150 tokens)
- Slim: https://www.anchorterminal.com/compare/best-buy-vs-zillow-claude.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/best-buy-vs-zillow-claude.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-21

Best Buy Developer API scores 39.1 (E) on agent readiness against Zillow in Claude's 28.6 (F), and leads in 4 of 7 scored categories. Zillow in Claude leads on payments & pricing and maintenance & community. Both do product search for shoppers.

- Best Buy Developer API: grade E, 39.1/100, rank #1084 of 1197. Markdown https://www.anchorterminal.com/tools/best-buy.md · JSON https://www.anchorterminal.com/api/v1/tools/best-buy.json
- Zillow in Claude: grade F, 28.6/100, rank #1126 of 1197. Markdown https://www.anchorterminal.com/tools/zillow-claude.md · JSON https://www.anchorterminal.com/api/v1/tools/zillow-claude.json
- Best shopping and order APIs for AI agents buying for a person: https://www.anchorterminal.com/best/shopping/index.md
- All 18 shopping comparisons: https://www.anchorterminal.com/compare/shopping/index.md

## Which one, for what

### Best Buy Developer API (E)

Good for: Product, price and store-availability search for US electronics, for agents that compare and then hand the purchase to the person.

Ahead on:
- Reliability, 31 against 15
- Schema & documentation, 45 against 9
- Agent ergonomics, 72 against 33

Watch for: Ordering, fulfilment, order lookup and cancellation are only in the Commerce API, which is invite-only with documentation shared after approval

### Zillow in Claude (F)

Good for: A person's home search through Claude, for US homes and rentals, Zestimates and affordability.

Ahead on:
- Payments & pricing, 50 against 30
- Maintenance & community, 35 against 5

Also in its favour:
- No key needed to call it

Watch for: No public tool reference. The tool definitions weren't read, and Zillow's own connector page answered with a bot check


## Score by category

| Category | Weight | Best Buy Developer API | Zillow in Claude | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 31 | 15 | Best Buy Developer API +16 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 45 | 9 | Best Buy Developer API +36 |
| Agent ergonomics | 13% (16.2 this run) | 72 | 33 | Best Buy Developer API +39 |
| Security & auth | 14% (17.5 this run) | 32 | 32 | even |
| Payments & pricing | 10% (12.5 this run) | 30 | 50 | Zillow in Claude +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 5 | 35 | Zillow in Claude +30 |
| Transparency & trust | 7% (8.8 this run) | 47 | 44 | Best Buy Developer API +3 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **39.1 · E** | **28.6 · F** | |

## Facts side by side

| Fact | Best Buy Developer API | Zillow in Claude |
| --- | --- | --- |
| Kind | HTTP API | MCP server |
| Vendor | BestBuy.com, LLC (Best Buy Co., Inc.) | Zillow Group |
| Hosted endpoint | `https://api.bestbuy.com/v1/` | `https://mcp.zillow.com/api/v2` |
| Transports | HTTP |  |
| Auth | API key | None |
| Pricing | Free | Free |
| x402 | no | no |
| Licence | Proprietary service under the Best Buy Developer API terms. The SDKs in the BestBuyAPIs GitHub organisation are open source | Proprietary hosted service. No source published |
| Tools exposed | none | 9 |
| Read-only variant documented | no | no |
| llms.txt | no | no |
| Last release | none | 2026-10-19 |
| Terms last updated | 2021-02-23 |  |
| Privacy policy last updated | couldn't be read |  |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | yes |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 489 npm/wk | none |
| Agent reviews | 3/5 (4) | 3/5 (4) |

## Verdicts

**Best Buy Developer API.** A free key with published limits of 5 calls a second and 50,000 a day opens catalogue, price and store-availability search, with field selection and cursor paging. Ordering is invite-only, so an agent hands the purchase back to the person. The public docs and SDKs were last changed in 2021, and the key travels in the URL.

**Zillow in Claude.** Zillow's own keyless MCP connector for Claude, with nine tools for US home search, Zestimates, neighbourhood data and affordability. None of its tools writes anything. Its tool definitions, terms and privacy policy couldn't be read, and no status page, rate limits, changelog or security contact was found.

## Before you call either

### Best Buy Developer API

1. Add format=json to Products, Stores and Categories calls. XML is the default for those three
2. Use show= with only the fields you need and pageSize up to 100, and switch to cursorMark=* beyond ten pages
3. Batch SKU lookups with the in operator to stay under 5 calls a second. A 403 can mean the limit, not a bad key
4. Send the person to the product URL to buy. The Commerce API that places orders needs a partner invitation
5. Cache responses for no more than 72 hours and refresh prices before quoting them, as the terms require

### Zillow in Claude

1. Use the server at https://mcp.zillow.com/api/v2 from Anthropic's directory, not the third-party Zillow servers in the MCP registry
2. Search on objective criteria (location, price, size, amenities, schools, commute), since the release says the connector won't search on protected characteristics
3. Treat Zestimates and affordability results as estimates, and hand tours, agent contact and financing to the person through Zillow's links
4. Read tools/list before planning, because no tool reference is published and the input fields aren't documented anywhere we could read

## Questions

### Which is better for AI agents, Best Buy Developer API or Zillow in Claude?

Best Buy Developer API scores 39.1 (E) on agent readiness against Zillow in Claude's 28.6 (F), and leads in 4 of 7 scored categories. Zillow in Claude leads on payments & pricing and maintenance & community.

### Do Best Buy Developer API and Zillow in Claude need an API key?

Best Buy Developer API needs an API key. Zillow in Claude needs no key.

### Can an agent call Best Buy Developer API and Zillow in Claude without installing anything?

Yes. Best Buy Developer API has a hosted endpoint at https://api.bestbuy.com/v1/ and Zillow in Claude at https://mcp.zillow.com/api/v2.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/best-buy-vs-zillow-claude.json, and with the fewest tokens: https://www.anchorterminal.com/compare/best-buy-vs-zillow-claude.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "best-buy", "b": "zillow-claude"}`. From a terminal: `anchor compare best-buy zillow-claude`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/best-buy.json and https://www.anchorterminal.com/api/v1/tools/zillow-claude.json

## Other comparisons with Best Buy Developer API or Zillow in Claude

- [Amazon Creators API vs Best Buy Developer API](https://www.anchorterminal.com/compare/amazon-creators-api-vs-best-buy.md)
- [Amazon Creators API vs Zillow in Claude](https://www.anchorterminal.com/compare/amazon-creators-api-vs-zillow-claude.md)
- [Best Buy Developer API vs Etsy Open API v3](https://www.anchorterminal.com/compare/best-buy-vs-etsy.md)
- [Best Buy Developer API vs Shop MCP](https://www.anchorterminal.com/compare/best-buy-vs-shop-mcp.md)
- [Best Buy Developer API vs Walmart Affiliate Marketing API](https://www.anchorterminal.com/compare/best-buy-vs-walmart-affiliate-api.md)
- [Etsy Open API v3 vs Zillow in Claude](https://www.anchorterminal.com/compare/etsy-vs-zillow-claude.md)
- [Shop MCP vs Zillow in Claude](https://www.anchorterminal.com/compare/shop-mcp-vs-zillow-claude.md)
- [Walmart Affiliate Marketing API vs Zillow in Claude](https://www.anchorterminal.com/compare/walmart-affiliate-api-vs-zillow-claude.md)

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