{"uid":"cap_rSek7NOxoM8WUOD5esW_o","slug":"zerion-api-list-swappable-fungible-tokens-6361133e","name":"Zerion API - List Swappable Fungible Tokens","description":"Interpreted wallet data for more than 40 chains and Solana: portfolios, DeFi positions, PnL, transactions and NFTs. REST for apps, x402 pay-per-call for agents.","url":"https://api.zerion.io/v1/swap/fungibles?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"direction":{"enum":["input","output","both"],"type":"string","description":"Which side to list swappable tokens for (defaults to both)"},"input[chain_id]":{"type":"string","description":"Input chain ID (defaults to ethereum)"},"output[chain_id]":{"type":"string","description":"Output chain ID (defaults to ethereum)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["data"],"properties":{"data":{"type":"array","items":{"type":"object","properties":{"id":{"type":"string","description":"Resource ID."},"type":{"type":"string","description":"Resource type."},"attributes":{"type":"object","description":"Resource attributes; see https://developers.zerion.io"}}},"description":"Array of JSON:API resource objects."},"links":{"type":"object","description":"Self and pagination links."}}}}}}},"responseSchema":{"type":"json","example":{"data":[{"id":"<resource id>","type":"<resource type>","attributes":{}}],"links":{"self":"https://api.zerion.io/v1/..."}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0EFP-8WAlfTORPWr3Ip2r","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the list of fungible tokens (with chain filtering) that are available as swap inputs or outputs on Zerion's cross-chain swap infrastructure.","exampleAgentPrompt":"What fungible tokens can I use on the output side of a swap on Arbitrum via Zerion?","exampleUseCases":[{"title":"Discover swappable tokens on Base","prompt":"Show me all the tokens I can swap into on the Base chain using Zerion."},{"title":"Check cross-chain swap token availability","prompt":"What tokens are available on both the input and output sides for swapping on Optimism through Zerion?"},{"title":"Build a swap token selector UI","prompt":"Give me the full list of swappable fungible tokens on Ethereum so I can populate a token selection dropdown for my DeFi app."}],"resultDescription":"A paginated JSON:API array of fungible token resource objects, each with a unique ID, resource type, and attributes (token metadata). Also includes self and pagination links for navigating through the full result set.","failureModes":["Invalid chain_id value returns an error or empty data array","Unsupported direction enum value may result in a 400 bad request","No tokens found for an obscure or unsupported chain returns an empty data array","Rate limiting or payment failure (x402) blocks the response","Missing or malformed query parameters may default to Ethereum silently"],"whenToPreferThis":"Use this endpoint when you need to enumerate which fungible tokens are eligible for swapping on a specific chain via Zerion, especially as a prerequisite step before constructing a swap. Prefer this over generic token list endpoints when you specifically need swap-eligibility context and cross-chain filtering by direction (input, output, or both).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T04:00:19.168Z","isFirstParty":false,"canonicalSlug":"zerion-api-list-swappable-fungible-tokens-6361133e"}