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Zillapi: Zillow property data API
REST API for U.S. Zillow property data: Zestimates, photos, schools, taxes, agent contact, price history, listing search, multi-unit building extraction, async batches, signed webhooks. 100 credits, no card required. See https://zillapi.com/pricing for current plans. Built for AI agents and SaaS products.
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-23T12:02:59.594Z. Cached copy · Source on zillapi.com
# Zillapi: Zillow property data API
> REST API for U.S. Zillow property data: Zestimates, photos, schools, taxes, agent contact, price history, listing search, multi-unit building extraction, async batches, signed webhooks. 100 credits, no card required. See https://zillapi.com/pricing for current plans. Built for AI agents and SaaS products.
Auth is `Authorization: Bearer zk_…`. Errors return `{ error: { code, message, request_id } }`. Async endpoints return `{ data: { job_id, status } }` with a `202` and notify completion via signed webhooks.
## Get a key in 30 seconds
- [Sign up free](https://zillapi.com/signup): 100 credits, no card required. Same key works for REST, MCP, and agent skills.
- [Pricing](https://zillapi.com/pricing/): 100 credits to start, plus paid plans with top-ups. Current prices on the page.
## Use Zillapi from any AI agent
- [MCP server](https://api.zillapi.com/mcp): Hosted, streamable-http transport. Drop into Claude Desktop, Claude Code, Cursor, ChatGPT, or the OpenAI Agents SDK with one config line.
- [Agent skills (open source, MIT-0)](https://github.com/ZeroPointRepo/zillow-skills): `npx skills add ZeroPointRepo/zillow-skills`: three drop-in agent skills for any skills-compatible agent.
- [Per-client setup guides](https://zillapi.com/blog/): Step-by-step install for Claude Desktop, Claude Code, Cursor, and ChatGPT custom GPTs.
- [For AI agents and LLMs](https://zillapi.com/ai-agents/): Tooling, conventions, function-calling templates.
## Start here
- [Welcome](https://zillapi.com/): Overview and entry points
- [Quickstart](https://zillapi.com/quickstart/): First call in 60 seconds, all four languages
- [Authentication](https://zillapi.com/authentication/): Keys, rotation, revocation
## Core concepts
- [Errors](https://zillapi.com/errors/): Stable error codes + HTTP status mapping
- [Rate limits & quotas](https://zillapi.com/rate-limits/): Per-minute caps + monthly quota by plan
- [Pagination](https://zillapi.com/pagination/): `limit`/`offset`/`has_more`
- [Output formats](https://zillapi.com/output-formats/): JSON, CSV, NDJSON
- [Field projection](https://zillapi.com/field-projection/): `?fields=zpid,address.streetAddress`
- [Async jobs](https://zillapi.com/async-jobs/): Polling vs webhooks
- [Webhooks](https://zillapi.com/webhooks-guide/): HMAC-SHA256 signature, retries, examples
## API reference
- [Properties](https://zillapi.com/api/properties/): Single lookups + 9 sub-resources (photos, price-history, tax-history, schools, nearby, agent, zestimate, open-houses, facts) + bulk batch
- [Buildings](https://zillapi.com/api/buildings/): Multi-unit extraction (apartments, condos)
- [Listings](https://zillapi.com/api/listings/): Status presets + REST GET wrapper with bbox
- [Search](https://zillapi.com/api/search/): Structured filters + chained search→detail
- [Jobs](https://zillapi.com/api/jobs/): List, inspect, results
- [Webhooks API](https://zillapi.com/api/webhooks/): Manage subscriptions
- [Account](https://z
…
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