> ## Documentation Index
> Fetch the complete documentation index at: https://docs.partfinder.dev/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> The PartFinder API is served at https://api.partfinder.dev. Authenticate with `Authorization: Bearer $PARTFINDER_API_KEY`; create an account at https://console.partfinder.dev/sign-up and pick pay as you go or a monthly or yearly plan (see https://partfinder.dev/pricing), then create a key. Pay as you go starts with 100 free credits, once per person and per company.
> Install the PartFinder agent skill with `npx skills add https://docs.partfinder.dev` (skill file: https://docs.partfinder.dev/skill.md).
> The OpenAPI document at https://api.partfinder.dev/v1/openapi.json is the source of truth for request and response schemas.
> What each call costs and current plans: https://api.partfinder.dev/llms.txt.

# PartFinder API: Supply-Chain Intelligence for Industrial Parts

> Research parts, find alternates, scan BOMs, track disruptions and request quotes from suppliers. Designed for backend engineers and the agents they build.

The PartFinder API gives your application and your agents supply-chain intelligence for industrial
parts: risk scores, supply availability, datasheets, alternate parts, part search, part comparison, disruption events, and requests
for quote sent to suppliers you name.

Responses are built for programmatic use. Every score carries its scale, direction and a plain-language
interpretation, every measure carries its unit, unknown values are explicit nulls with a stated reason,
and every response carries an `as_of` timestamp and an informational-use notice.

## Three ways to use it

> [card] [Build with the API](https://docs.partfinder.dev/quickstart.md)
>
> Call the endpoints from your app or your own AI assistant.

> [card] [Connect over MCP](https://docs.partfinder.dev/mcp-server.md)
>
> Connect Claude, ChatGPT, Cursor or any MCP client and sign in.

> [card] [Add the agent skill](https://docs.partfinder.dev/agent-skills.md)
>
> Teach Claude Code, Codex or Cursor to use PartFinder. No code.

## Developer guides

> [card] [Research a part](https://docs.partfinder.dev/part-lookup.md)
>
> Risk score, supply and lead times, datasheet, disruptions and alternates for one part number.

> [card] [Find alternate parts](https://docs.partfinder.dev/alternates.md)
>
> Parts that could replace one part, each with its own current supply.

> [card] [Search for parts](https://docs.partfinder.dev/search.md)
>
> A part number or a description in; the part and comparable parts out, with specs and stock.

> [card] [Compare parts](https://docs.partfinder.dev/compare.md)
>
> Parts side by side on their datasheet specifications, with a verdict per specification and stock.

> [card] [Analyze a BOM](https://docs.partfinder.dev/bom-analysis.md)
>
> Send a parts list or a CSV/XLSX file and get a risk report for every line.

> [card] [Track supply-chain disruptions](https://docs.partfinder.dev/events.md)
>
> Current events by country, region and category, and shipping conditions at ports and sea routes.

> [card] [Request a quote](https://docs.partfinder.dev/rfq.md)
>
> Email a supplier, read their reply with the quote laid out, and answer in the same thread.

> [card] [Get notified](https://docs.partfinder.dev/webhooks.md)
>
> Signed webhooks when a supplier replies, an email bounces, or a search or a comparison ends.

> [card] [Serve your own customers](https://docs.partfinder.dev/authentication.md#serving-your-own-customers)
>
> A key for each of your customers. Each one sees only its own requests for quote, BOMs, searches and comparisons.

> [card] [Build PartFinder into your own assistant](https://docs.partfinder.dev/ai-agent-integration.md)
>
> Give your product's own AI assistant these endpoints as tools.

> [card] [API Reference](https://docs.partfinder.dev/api-reference/overview.md)
>
> Every endpoint with its parameters and response schemas.

> [!NOTE]
>
> API keys are created in the [PartFinder Console](https://console.partfinder.dev). Keys belong to an organization, not a person. They keep working when team members change.


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