> ## Documentation Index > Fetch the complete documentation index at: https://sl-6d1f19fe-mintlify-ff95e355.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # List crypto currencies > List all supported cryptocurrencies with live rates. ## OpenAPI ````yaml https://api.streamloop.app/v1/openapi.json get /crypto/currencies openapi: 3.1.0 info: contact: name: Streamloop url: https://streamloop.app description: >- The Streamloop REST API. Authenticate with either an `X-API-Key` header (a Streamloop API key, prefix `sl_` — simplest for programmatic clients) or an OAuth 2.1 bearer access token (obtain one via https://auth.streamloop.app). Collections are cursor-paginated (`limit` + `cursor`, returning `{ data, page }`). Errors are RFC 7807 problem documents. summary: >- Programmatic access to Streamloop — create and control 24/7 loop streams, manage media, destinations, playlists, and billing. title: Streamloop API version: 1.0.0 servers: - description: Production url: https://api.streamloop.app/v1 security: - oauth2: [] - bearerAuth: [] - apiKey: [] tags: - description: The authenticated user's account. name: account - description: Credits, usage analytics, invoices, and top-ups. name: billing - description: Crypto deposit options for topping up credits. name: crypto - description: Manage streaming destinations (custom RTMP). name: destinations - description: 'Service metadata: status and the OpenAPI document (unauthenticated).' name: meta - description: Manage and publish stream playlists. name: playlists - description: Create, control, schedule, and monitor 24/7 loop streams. name: streams - description: Upload and manage source media (video/audio). name: uploads paths: /crypto/currencies: get: tags: - crypto summary: List crypto currencies description: List all supported cryptocurrencies with live rates. operationId: listCryptoCurrencies responses: '200': content: application/json: schema: items: $ref: '#/components/schemas/CryptoCurrency' type: array description: Successful response. headers: RateLimit-Limit: description: Requests allowed per window. schema: type: integer RateLimit-Remaining: description: Requests remaining in the current window. schema: type: integer RateLimit-Reset: description: Seconds until the window resets. schema: type: integer '401': content: application/problem+json: schema: $ref: '#/components/schemas/Problem' description: Missing or invalid access token. '403': content: application/problem+json: schema: $ref: '#/components/schemas/Problem' description: The token lacks the required scope or access to the resource. '404': content: application/problem+json: schema: $ref: '#/components/schemas/Problem' description: The resource does not exist or is not visible to the caller. '422': content: application/problem+json: schema: $ref: '#/components/schemas/Problem' description: The request body or parameters are invalid. '429': content: application/problem+json: schema: $ref: '#/components/schemas/Problem' description: Rate limit exceeded. Retry after the indicated delay. headers: Retry-After: description: Seconds to wait before retrying. schema: type: integer '502': content: application/problem+json: schema: $ref: '#/components/schemas/Problem' description: The upstream data service returned an error. security: - oauth2: - streamloop:read - bearerAuth: [] - apiKey: [] components: schemas: CryptoCurrency: properties: chainId: description: >- EVM chain ID a WalletConnect/wagmi client should switch to before signing. Null for non-EVM chains (Solana, Tron, Bitcoin, TON, …) — those need their own connector libraries. type: - integer - 'null' contractAddress: description: >- Token contract address for ERC20-style tokens on EVM chains (and SPL mint for Solana). Null for native coins (ETH, SOL, MATIC, BTC, …) where a wallet sends a plain transfer instead of calling a contract. type: - string - 'null' decimals: description: >- Decimals for unit conversion. ERC20 tokens vary (USDT=6, DAI=18); native coins follow chain convention (ETH=18, SOL=9, BTC=8). Defaults to 18 when unknown so EVM transfers stay safe. type: integer icon: description: SVG icon URL. type: string id: description: 0xProcessing currency identifier, e.g. "USDT (TRC20)" or "BTC". type: string name: description: Human-readable name from manifest, e.g. "Tether". type: string network: description: >- Network code from the manifest, e.g. "TRC20", "ERC20", "POLYGON", "SOL". type: string rateUSD: description: Price of 1 unit in USD (from Binance; 1.0 for stablecoins). type: number symbol: description: Base symbol, e.g. "USDT". type: string transferKind: description: How a frontend should construct the payment transaction. enum: - EVM_NATIVE - EVM_ERC20 - NON_EVM type: string required: - decimals - icon - id - name - network - rateUSD - symbol - transferKind type: object Problem: description: RFC 7807 problem-details error body. properties: code: description: A stable, machine-readable error code. type: string detail: description: A human-readable explanation specific to this occurrence. type: string status: description: The HTTP status code. type: integer title: description: A short, human-readable summary of the problem. type: string type: description: A URI reference identifying the problem type. format: uri-reference type: string required: - type - title - status - detail - code type: object securitySchemes: oauth2: description: OAuth 2.1 authorization-code flow with PKCE. flows: authorizationCode: authorizationUrl: https://auth.streamloop.app/api/auth/oauth2/authorize scopes: streamloop:billing: Read billing/usage and create top-up links streamloop:destructive: Delete streams and destinations streamloop:read: Read streams, destinations, playlists, and billing status streamloop:write: Create and control streams, destinations, and playlists tokenUrl: https://auth.streamloop.app/api/auth/oauth2/token type: oauth2 bearerAuth: bearerFormat: JWT description: An OAuth 2.1 bearer access token. scheme: bearer type: http apiKey: description: >- A Streamloop API key (prefix `sl_`), sent in the `X-API-Key` header. Create and manage keys in the dashboard. The simplest auth for programmatic / agent clients — no OAuth flow required; the key acts as its owning user. in: header name: X-API-Key type: apiKey ````