FintechPlatform secret

CoinMarketCap

coinmarketcap.com

CoinMarketCap cryptocurrency market data provider.

Tier: 🥉 Bronze
Reward: ₩50,000
Auth: Platform secret
Operations: 3
Working now: 0 contributors
Status: Open

Scope

Uses the CoinMarketCap Pro REST API for listings, latest quotes, and symbol metadata. The provider targets documented v1 cryptocurrency endpoints with API key headers and returns price, market cap, volume, and rank fields from the official JSON responses.

Expected operations

listings-latestGet latest listingsreadDifficulty: medium

Returns paginated cryptocurrency listings with ranked market data and quote objects. Use offset, limit, and convert to shape the result window. Backed by CoinMarketCap Pro.

Inputs

offsetnumberoptional

Suggested surface — propose changes in your submission if the upstream differs.

Acceptance criteria

Provider scaffolded from the public @apifuse/provider-sdk
All listed operations implemented with Zod/Standard Schema input & output
Each operation declares exactly one of healthCheck or healthCheckUnsupported
Real upstream fixture data included where applicable
bun run check and bun run test pass
Auth, credential, and env-secret behavior documented (no real secrets committed)

Evidence to submit

Workspace repository and main commit link
SDK version/tag and the create command used
Operation list with input/output summaries
Health coverage table per operation
bun run check and bun run test output

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Starting rank offset.

limitnumberoptional

Number of rows to return.

convertstringoptional

Fiat or crypto quote currency.

USD

Outputs

dataidnamesymbolcmc_rankquotepricemarket_capvolume_24h

Acceptance

Returns a data array with ranked cryptocurrency rows and quote objects.
Honors limit and convert parameters in the documented response shape.
Includes cmc_rank, symbol, and quote price fields from the API response.

Auth required for this operation.

quotes-latestGet latest quotesreadDifficulty: medium

Returns latest quote objects for one or more symbols or ids in the documented market-data shape. Use symbol, convert, and id to request the desired assets. Backed by CoinMarketCap Pro.

Inputs

symbolstringoptional
Comma separated cryptocurrency symbols.
BTC,ETH
convertstringoptional
Quote currency to convert into.
USD
idstringoptional
Comma separated cryptocurrency ids.
1,1027

Outputs

dataidnamesymbolquoteprice

cryptocurrency-metadataGet cryptocurrency metadatareadDifficulty: medium

Returns descriptive metadata for one or more cryptocurrencies, including logos, urls, and tags. Use symbol and id as lookup keys, with at least one required. Backed by CoinMarketCap Pro.

Inputs

symbolstringoptional
Comma separated symbols for the requested assets.
BTC,ETH
idstringoptional
Comma separated numeric ids.
1,1027

Outputs

dataidnamesymbollogodescription

Acceptance

Returns quote objects keyed by id or symbol for the requested assets.
Provides the documented USD or converted quote fields such as price and percent_change_24h.
Rejects requests that omit both symbol and id.

Auth required for this operation.

Acceptance

Returns metadata keyed by the requested symbol or id values.
Includes documented descriptive fields such as logo, description, urls, and tags.
Enforces that at least one lookup key is supplied.

Auth required for this operation.