# Zeer documentation

> Zcash testnet developer preview. Prep is public data; private receipts and memos are a local Chef workflow.

- [Build with Zeer](https://zeer.endpx.cloud/docs/): Query public Zcash data with Prep. Build your application indexer with Chef.
- [From source to API](https://zeer.endpx.cloud/docs/architecture/): Understand the responsibilities of Prep, Chef, PostgreSQL and GraphQL.
- [Zeer Prep](https://zeer.endpx.cloud/docs/prep/overview/): Select the public Zcash blocks, transactions and fields your application needs.
- [Your first Prep query](https://zeer.endpx.cloud/docs/prep/quickstart/): Install the Prep client and stream testnet block headers in your first script.
- [Quickstart with AI](https://zeer.endpx.cloud/docs/prep/quickstart-ai/): Give your coding assistant a bounded, verifiable first Zeer Prep integration.
- [Getting started with Prep](https://zeer.endpx.cloud/docs/prep/getting-started/): Move from a first request to a repeatable integration with coverage, fields and continuation.
- [Prep clients](https://zeer.endpx.cloud/docs/prep/clients/): Install the published JavaScript and TypeScript client and choose the correct read method.
- [Prep retrieval benchmarks](https://zeer.endpx.cloud/docs/prep/benchmarks/): Compare matched Prep and Zebra RPC retrieval, with samples, preparation and resource limits.
- [cURL examples](https://zeer.endpx.cloud/docs/prep/curl/): Copy bounded public testnet queries for block headers, shielded structures and transaction inspection.
- [API access & tokens](https://zeer.endpx.cloud/docs/prep/tokens/): Understand public preview access and server-side bearer authentication for private Prep deployments.
- [Supported networks](https://zeer.endpx.cloud/docs/prep/networks/): Zcash testnet chain identifier, Prep URL and access notes.
- [Troubleshooting](https://zeer.endpx.cloud/docs/prep/troubleshooting/): Diagnose empty pages, unavailable sources, invalid cursors and rejected Prep queries.
- [Query & response](https://zeer.endpx.cloud/docs/prep/query/): Prep request properties, response fields and cursor usage.
- [Filters & field selection](https://zeer.endpx.cloud/docs/prep/fields/): Choose lightweight public fields and combine transaction predicates correctly.
- [Continuation & historical scans](https://zeer.endpx.cloud/docs/prep/continuation/): Finish a pinned scan, including empty filtered pages, without losing its cursor.
- [Find payments to a transparent address](https://zeer.endpx.cloud/docs/prep/tutorials/address-outputs/): Stream transactions with matching transparent outputs and keep the scan range explicit.
- [Inspect a Zcash transaction](https://zeer.endpx.cloud/docs/prep/tutorials/inspect-transaction/): Read pending or mined status, coinbase classification and public shielded components.
- [Public shielded activity](https://zeer.endpx.cloud/docs/prep/shielded/): Sapling, Orchard and Ironwood public counts and pool filters.
- [Transaction lookup & mempool](https://zeer.endpx.cloud/docs/prep/transactions/): Inspect source-observed pending and mined transactions, and understand missing results.
- [Prep examples](https://zeer.endpx.cloud/docs/prep/examples/): Try task-specific public testnet queries in the existing Prep playground.
- [Coverage, access & preview limits](https://zeer.endpx.cloud/docs/prep/public-api/): Public testnet readiness routes and shared request limits.
- [Zeer Chef](https://zeer.endpx.cloud/docs/chef/overview/): Transform Zcash data into application entities with your TypeScript handlers and PostgreSQL.
- [Run your own Chef project](https://zeer.endpx.cloud/docs/chef/quickstart/): Install, configure, index and query a standalone Chef starter.
- [Quickstart with AI](https://zeer.endpx.cloud/docs/chef/quickstart-ai/): Build and verify a standalone Chef indexer with an AI assistant using the actual Zeer starter.
- [Chef indexing benchmarks](https://zeer.endpx.cloud/docs/chef/benchmarks/): Measure durable entity indexing and the first data observed through GraphQL while Chef runs.
- [Configuration file](https://zeer.endpx.cloud/docs/chef/configuration/): Select your project, network, historical start, source filters and commit settings.
- [Entity schema](https://zeer.endpx.cloud/docs/chef/schema/): Define entities, bounded lists and relationships, generate TypeScript types and choose indexes.
- [Transaction handlers](https://zeer.endpx.cloud/docs/chef/handlers/): Choose metadata or decoded public transaction input and write application entities.
- [Block handlers](https://zeer.endpx.cloud/docs/chef/block-handlers/): Store one entity per block and understand handler order, filtering and replay.
- [Environment variables](https://zeer.endpx.cloud/docs/chef/environment-variables/): Configure Prep, PostgreSQL, GraphQL authentication and the optional local scanner.
- [Chef CLI commands](https://zeer.endpx.cloud/docs/chef/cli-commands/): Initialize near the indexed head and reference every supported Zeer CLI command and option.
- [Database performance](https://zeer.endpx.cloud/docs/chef/database-performance/): Choose supported indexes, inspect query plans and measure read/write tradeoffs.
- [Latency at the chain head](https://zeer.endpx.cloud/docs/chef/latency-at-head/): Separate source, Prep, commit and reader delays when following new Zcash blocks.
- [Benchmark your indexer](https://zeer.endpx.cloud/docs/chef/benchmarking/): Use actual CLI counters to diagnose bottlenecks and verify equivalent replay results.
- [Querying with GraphQL](https://zeer.endpx.cloud/docs/chef/graphql/): Read entities, relationships and checkpoints with bounded filters, ordering and revision-bound cursors.
- [Shielded receipts & privacy](https://zeer.endpx.cloud/docs/chef/shielded/overview/): Local receipt scanning, supported pools and viewing-key scope.
- [Local viewing-key setup](https://zeer.endpx.cloud/docs/chef/shielded/local/): Build the local scanner, configure the UFVK and run the inbox.
- [Reading receipts & memos](https://zeer.endpx.cloud/docs/chef/shielded/memos/): Query locally decrypted note values, memo text and exact raw memo bytes.
- [Chef examples](https://zeer.endpx.cloud/docs/chef/examples/): Choose block summaries, transaction breakdown, address analytics or a local shielded inbox.
- [Transparent address analytics](https://zeer.endpx.cloud/docs/chef/address-analytics/): Build address history and exact observed totals with explicit coverage.
- [Testing your indexer](https://zeer.endpx.cloud/docs/chef/testing/): Validate handler output, database persistence, restart behavior and reorg recovery.
- [Checkpoints, restart & reorgs](https://zeer.endpx.cloud/docs/chef/recovery/): Resume compatible projects and understand bounded rollback and explicit rebuilds.
- [Schema & handler evolution](https://zeer.endpx.cloud/docs/chef/evolution/): Replay changed schema and handler generations into a fresh namespace.
- [Equality query indexes](https://zeer.endpx.cloud/docs/chef/indexes/): Supported @index declarations and migration rules.
- [Self-hosting & troubleshooting](https://zeer.endpx.cloud/docs/chef/self-hosting/): Operate Chef’s writer and authenticated reader against your own PostgreSQL database.