# Build with Strata

Identify a raw card, sealed product or graded slab. Get the right market price. Connect markets when the registry has a verified match. These guides cover the complete account, API and agent journey.

## Start here

- [Connect your account](./get-started.md): sign up or sign in, OAuth or API key, first lookup, billing and recovery.
- [Quickstart](./quickstart.md): copyable requests for identification, raw pricing, slabs and graded markets.
- [Agent operating guide](./agent-workflows.md): choose the right operation, manage uncertainty, process batches and resume after interruptions.
- [API console](./console.md): run queries with your existing account; no API key needed in the browser.

## Choose the operation

| You have | Use | Read next |
| --- | --- | --- |
| A photo | Your agent extracts visible evidence, then sends text. | [Photo and bulk recipes](./recipes.md) |
| A name, nickname or listing | Identify raw or sealed products. | [Identification](./identify.md) |
| A partial search or explicit user choice | Suggest candidates; record confirmation for review. | [Suggest and confirm](./suggest.md) |
| A known TCGplayer product | Price the exact printing, language and condition. | [Raw and sealed pricing](./enrich.md) |
| A slab cert, barcode or label | Resolve graded identity independently of raw coverage. | [Slab identification](./slabs.md) |
| An ALT identity or verified Strata link | Price one to four explicit graded markets. | [Graded pricing](./graded-prices.md) |
| A Strata product UUID | Read capabilities and mapping progress. | [Products and mappings](./products.md) |
| A corrected result | Submit evidence for review, without directly publishing. | [Registry feedback](./registry-feedback.md) |

## Connect, operate and recover

- [OAuth](./oauth.md): registration, consent, scopes, token refresh, revocation and gateway requests.
- [Billing lifecycle](./billing.md): human approvals, upgrades, scheduled downgrades, cancellation, invoices and failures.
- [Monthly plans](./monthly-plans.md): credit costs, resets, limits and idempotency.
- [Sandbox](./agent-sandbox.md): isolated payments and credits with an approved tester's actual identity.
- [Errors and retries](./errors-retries.md): partial results, retry boundaries and support references.
- [Coverage](./coverage.md), [pitfalls](./pitfalls.md) and [migration](./migration.md): supported evidence and boundaries.

## For agents and developers

- [Endpoint reference](./api-reference.md) and [OpenAPI JSON](/connector/openapi.json): all public consumer operations and schemas.
- [llms.txt](/connector/llms.txt): compact discovery and routing instructions.
- [Complete documentation bundle](/connector/llms-full.txt): all customer guides in one text file, generated from the same sources as these pages.
- [Reusable agent skill](./skills/tcg-identify/SKILL.md) and [integration guide](./agent-skill.md): execution instructions for compatible hosts.

Missing prices are never zero. A missing raw link never invalidates a graded result. Suggestions and proposed links are not verified identity decisions. Strata supplies market observations, not authentication or guaranteed resale values.