Mercari item API

Endpoint facts

Method

GET

API path

/mercari/item/{id}

Auth

apiKey

Credits

3 credits/request

Platform

Mercari

Response schema

#/definitions/mercari.ItemDetailResponse

Overview

Returns a normalized Mercari item-detail page: description, all photos, price, condition, category, hashtags, the shipping origin state, and a "similar items" carousel of related listings. Credential-free public data sourced from Mercari's own mobile-app API using an anonymous, login-free session. Developers commonly use this endpoint for data enrichment, monitoring, research dashboards, internal automation, and agent-native workflows that need repeatable structured public web data. Authentication uses the documented Crawlora headers, and usage is metered with the credit cost shown on this page.

Authentication

Send your scraping API key in the x-api-key header. Use the console API Keys page to rotate or select the active key.

Billing

Endpoint usage is metered in credits. The plan prices, included credits, limits, and overage rates below match the active backend billing configuration.

Credit cost

3 credits/request

Charged response

Successful 2xx responses

Infrastructure behavior

This endpoint is executed through Crawlora's managed scraping infrastructure.

• Proxy strategy: managed automatically where needed
• Browser rendering: enabled for supported targets that require rendered HTML or JavaScript execution
• Browser cluster: supported dynamic workloads can be routed through distributed browser instances
• Retry behavior: automatic retry/fallback may be used depending on endpoint type
• Challenge handling: challenged pages or unusable upstream HTML are detected and surfaced clearly when they cannot be used
• Billing: credits are charged only for successful 2xx responses
• Observability: responses include request context where available

Response behavior

- `title` is the item's description text up to its first line break — Mercari's mobile API does not expose a separate, shorter title field at this response's top level; `description` is the full text. - `condition_code` and `category_code` are best-effort field labels, recovered by decoding raw upstream responses rather than from a published schema — treat them as directionally useful, not authoritative. - `similar_items` is a list of related listings in the same normalized shape as `/mercari/search`'s `items` array (title, price, thumbnail, condition, seller). It is omitted (not an error) when Mercari's response doesn't include a similar-items carousel for that listing, and it never includes the requested item itself. - An unknown or delisted item id returns `404`. - A missing `id` returns `400` before any upstream request is made. Example response: ```json { "code": 200, "msg": "OK", "data": { "id": "m38581776856", "url": "https://www.mercari.com/us/item/m38581776856", "title": "Women’s NIKE WNBA Nike Mesh Jacket Size NEW MSRP 120", "description": "Women’s NIKE WNBA Nike Mesh Jacket Size NEW MSRP 120", "photos": [ "https://u-mercari-images.mercdn.net/photos/m38581776856_1.jpg?1777492193", "https://u-mercari-images.mercdn.net/photos/m38581776856_2.jpg?1777492193" ], "price_cents": 4578, "condition_code": 1, "category_code": 6, "shipping_from_state": "New Jersey", "similar_items": [ { "id": "m34982910331", "url": "https://www.mercari.com/us/item/m34982910331", "title": "Lululemon Every Moment Pant *26\" Black Size 6", "thumbnail_url": "https://u-mercari-images.mercdn.net/photos/m34982910331_1.jpg?1783333561", "price_cents": 4000, "num_likes": 1967, "seller_id": "790985424", "created_at_unix": 1783333561 } ] } } ```

Error behavior

Crawlora does not silently return bad data when the upstream page cannot be used.

When possible, Crawlora returns structured error context so your integration can retry, back off, or inspect the request.

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