{"id":"bba3a390-98f8-41e5-8809-78d21183b48b","shortId":"9h8wRS","kind":"x402","title":"Live token prices with FDV, liquidity, and 24h change for Ethereum and Base, quoted in USD/ETH/BTC.","tagline":"Live token prices with FDV, liquidity, and 24h change for Ethereum and Base, quoted in USD/ETH/BTC.","description":"The SlamAI Token Price endpoint returns real-time token pricing data for tokens on Ethereum and Base networks. For each queried token it provides the current price (quoted in USD, ETH, or BTC), fully diluted valuation (FDV), available liquidity, and 24-hour price change percentages. Tokens can be looked up by symbol or contract address, with up to 30 tokens per request using pipe-delimited lists.\n\nThe endpoint is an x402-enabled GET API on Base, accepting payment in USDC (contract 0x8335…2913). The maximum cost per call is 1000 base units of USDC, which equals $0.001 (one-tenth of a cent). Each response includes a block number and UTC timestamp anchoring the price snapshot, plus a `slam` field indicating the internal SLAM token cost of the call. A special `estimate_cost` query parameter lets callers preview the SLAM cost without fetching actual price data.\n\nThe endpoint exposes a detailed output schema via its x402 challenge, covering token name, symbol, address, price, FDV, liquidity, and an array of historical price-change entries keyed by lookback period in minutes. No separate documentation site or OpenAPI spec was found; all schema information comes from the 402 challenge payload itself.","tags":[],"capabilities":["token-price-lookup","fdv-valuation","liquidity-data","24h-price-change","multi-token-batch","ethereum-support","base-l2-support","usd-eth-btc-quoting","x402-micropayment","cost-estimation"],"categories":["crypto","defi","market-data"],"synonyms":["token price API","crypto price feed","DeFi token data","ERC-20 price lookup","on-chain price oracle","token market data","Base token prices","Ethereum token prices","FDV API","liquidity API"],"warnings":["No documentation site found; all crawled paths return 404.","No OpenAPI or ai-plugin manifest available.","Example response values are inferred from the schema, not from an actual API call.","Provider identity ('SlamAI') is inferred from the domain name only."],"endpointUrl":"https://api.slamai.dev/token/price","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0xd85096fAeC1aC03075667B4C1a1661F5623Bf111","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://api.slamai.dev/token/price","description":"\nReturns current token prices with FDV, liquidity, and 24h price change, quoted in **USD**, **ETH**, or **BTC**.\n\n### Rules\n- Provide **either** `symbols` or `addresses`, not both.\n- Max **30 entries** for either parameter (pipe-delimited).\n- `quote_symbol` must be one of: `USD`, `ETH`, `BTC`.","discoverable":true,"outputSchema":{"input":{"type":"http","method":"GET","queryParams":{"symbols":{"type":"string","description":"Pipe-delimited list of token symbols to query (e.g., SWARM|VADER). Cannot be used with 'addresses'. Max 30 symbols."},"addresses":{"type":"string","description":"Pipe-delimited list of token contract addresses (e.g., 0xabc...|0xdef...). Cannot be used with 'symbols'. Max 30 addresses."},"blockchain":{"enum":["ethereum","base"],"type":"string","required":true,"description":"The blockchain network to query."},"quote_symbol":{"enum":["USD","ETH","BTC"],"type":"string","description":"Quote token or currency to return prices in."},"estimate_cost":{"type":"boolean","description":"When true, only returns the SLAM token cost for this request. Does not include token price data."}}},"output":{"status":200,"content":{"application/json":{"schema":{"oneOf":[{"type":"object","required":["block","chain","quote","slam","utc"],"properties":{"utc":{"type":"string","minLength":1,"description":"UTC timestamp of this data (ISO 8601)."},"slam":{"type":"number","format":"double","description":"The SLAM token cost for this API call."},"block":{"type":"integer","format":"int32","description":"The block number for this price snapshot."},"chain":{"type":"string","minLength":1,"description":"The blockchain network name (e.g., 'base')."},"quote":{"type":"string","minLength":1,"description":"Quote token or currency (USD, ETH, BTC)."},"tokens":{"type":"array","items":{"type":"object","properties":{"fdv":{"type":"number","format":"double","nullable":true,"description":"Fully diluted valuation in USD."},"name":{"type":"string","description":"Full token name."},"prev":{"type":"array","items":{"type":"object","properties":{"change":{"type":"string","description":"Price change percentage."},"minutes":{"type":"integer","format":"int32","description":"Lookback period in minutes."}}},"description":"Price change info over 24h."},"price":{"type":"number","format":"double","description":"Current price in selected quote."},"symbol":{"type":"string","description":"Token symbol."},"address":{"type":"string","description":"Token contract address."},"liquidity":{"type":"number","format":"double","nullable":true,"description":"Available liquidity in USD."}}},"description":"List of token price data."}}},{"type":"object","properties":{"slam":{"type":"number","format":"double"}}}]}}},"description":"OK"}},"maxAmountRequired":"1000","maxTimeoutSeconds":300}]},"qualityScore":"0.720","qualityRationale":"The x402 challenge is live and includes a detailed outputSchema with input query parameters and response structure. However, no external documentation, OpenAPI spec, or landing page exists—all information is derived solely from the 402 challenge payload. The example response is inferred from the schema rather than 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'0x8335':117 '1000':125 '24':74 '24h':8,24 '24h-price-change' '2913':118 '30':92 '402':231 'Base token prices' 'DeFi token data' 'ERC-20 price lookup' 'Ethereum token prices' 'FDV API' 'accept':112 'actual':179 'address':88,197 'anchor':148 'api':109 'array':203 'avail':71 'base':13,29,50,111,126 'base-l2-support' 'block':143 'btc':66 'call':123,164 'caller':172 'cent':138 'challeng':192,232 'chang':9,25,77,208 'come':228 'contract':87,116 'cost':121,161,168,176 'cost-estimation' 'cover':193 'crypto price feed' 'current':59 'data':44,181 'delimit':99 'detail':186 'dilut':68 'document':218 'enabl':107 'endpoint':37,102,183 'entri':209 'equal':131 'estim':167 'eth':64 'ethereum':11,27,48 'ethereum-support' 'expos':184 'fdv':5,21,70,199 'fdv-valuation' 'fetch':178 'field':155 'found':224 'fulli':67 'get':108 'histor':205 'hour':75 'includ':141 'indic':156 'inform':227 'intern':158 'key':210 'let':171 'liquid':6,22,72,200 'liquidity API' 'liquidity-data' 'list':100 'live':1,17 'look':82 'lookback':212 'maximum':120 'minut':215 'multi-token-batch' 'name':195 'network':51 'number':144 'on-chain price oracle' 'one':134 'one-tenth':133 'openapi':221 'output':187 'paramet':170 'payload':233 'payment':113 'per':94,122 'percentag':78 'period':213 'pipe':98 'pipe-delimit':97 'plus':152 'preview':173 'price':3,19,36,43,60,76,150,180,198,207 'price-chang':206 'provid':57 'queri':54,169 'quot':14,30,61 'real':40 'real-tim':39 'request':95 'respons':140 'return':38 'schema':188,226 'separ':217 'site':219 'slam':154,159,175 'slamai':34 'snapshot':151 'spec':222 'special':166 'symbol':85,196 'tenth':135 'time':41 'timestamp':147 'token':2,18,35,42,46,55,79,93,160,194 'token market data' 'token price API' 'token-price-lookup' 'unit':127 'usd':63 'usd-eth-btc-quoting' 'usd/eth/btc':16,32 'usdc':115,129 'use':96 'utc':146 'valuat':69 'via':189 'without':177 'x402':106,191 'x402-enabled':105 'x402-micropayment'","prices":[{"id":"0c1d5dce-9959-4df9-b9ba-a312cf193526","listingId":"bba3a390-98f8-41e5-8809-78d21183b48b","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"1000","chain":"base","payTo":"0xd85096fAeC1aC03075667B4C1a1661F5623Bf111","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0xd85096fAeC1aC03075667B4C1a1661F5623Bf111","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://api.slamai.dev/token/price","description":"\nReturns current token prices with FDV, liquidity, and 24h price change, quoted in **USD**, **ETH**, or **BTC**.\n\n### Rules\n- Provide **either** `symbols` or `addresses`, not both.\n- Max **30 entries** for either parameter (pipe-delimited).\n- `quote_symbol` must be one of: `USD`, `ETH`, `BTC`.","discoverable":true,"outputSchema":{"input":{"type":"http","method":"GET","queryParams":{"symbols":{"type":"string","description":"Pipe-delimited list of token symbols to query (e.g., SWARM|VADER). Cannot be used with 'addresses'. Max 30 symbols."},"addresses":{"type":"string","description":"Pipe-delimited list of token contract addresses (e.g., 0xabc...|0xdef...). Cannot be used with 'symbols'. Max 30 addresses."},"blockchain":{"enum":["ethereum","base"],"type":"string","required":true,"description":"The blockchain network to query."},"quote_symbol":{"enum":["USD","ETH","BTC"],"type":"string","description":"Quote token or currency to return prices in."},"estimate_cost":{"type":"boolean","description":"When true, only returns the SLAM token cost for this request. Does not include token price data."}}},"output":{"status":200,"content":{"application/json":{"schema":{"oneOf":[{"type":"object","required":["block","chain","quote","slam","utc"],"properties":{"utc":{"type":"string","minLength":1,"description":"UTC timestamp of this data (ISO 8601)."},"slam":{"type":"number","format":"double","description":"The SLAM token cost for this API call."},"block":{"type":"integer","format":"int32","description":"The block number for this price snapshot."},"chain":{"type":"string","minLength":1,"description":"The blockchain network name (e.g., 'base')."},"quote":{"type":"string","minLength":1,"description":"Quote token or currency (USD, ETH, BTC)."},"tokens":{"type":"array","items":{"type":"object","properties":{"fdv":{"type":"number","format":"double","nullable":true,"description":"Fully diluted valuation in USD."},"name":{"type":"string","description":"Full token name."},"prev":{"type":"array","items":{"type":"object","properties":{"change":{"type":"string","description":"Price change percentage."},"minutes":{"type":"integer","format":"int32","description":"Lookback period in minutes."}}},"description":"Price change info over 24h."},"price":{"type":"number","format":"double","description":"Current price in selected quote."},"symbol":{"type":"string","description":"Token symbol."},"address":{"type":"string","description":"Token contract address."},"liquidity":{"type":"number","format":"double","nullable":true,"description":"Available liquidity in USD."}}},"description":"List of token price data."}}},{"type":"object","properties":{"slam":{"type":"number","format":"double"}}}]}}},"description":"OK"}},"maxAmountRequired":"1000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:33.307Z"}],"sources":[{"listingId":"bba3a390-98f8-41e5-8809-78d21183b48b","source":"x402_bazaar","sourceId":"https://api.slamai.dev/token/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:33.307Z","lastSeenAt":"2026-04-22T04:02:47.945Z"}],"details":{"listingId":"bba3a390-98f8-41e5-8809-78d21183b48b","quickStartSnippet":"curl -X GET \"https://api.slamai.dev/token/price?blockchain=base&symbols=USDC|WETH&quote_symbol=USD\" \\\n  -H \"X-Payment: <x402-payment-header>\"","exampleRequest":{"url":"https://api.slamai.dev/token/price?blockchain=base&symbols=SWARM|VADER&quote_symbol=USD","method":"GET"},"exampleResponse":{"utc":"2026-04-22T00:45:00.000Z","slam":0.5,"block":28451023,"chain":"base","quote":"USD","tokens":[{"fdv":23400000,"name":"Swarm","prev":[{"change":"-2.31%","minutes":1440}],"price":0.0234,"symbol":"SWARM","address":"0xabc...","liquidity":185000},{"fdv":870000,"name":"Vader","prev":[{"change":"+5.12%","minutes":1440}],"price":0.00087,"symbol":"VADER","address":"0xdef...","liquidity":42000}]},"schema":{"input":{"type":"http","method":"GET","queryParams":{"symbols":{"type":"string","description":"Pipe-delimited list of token symbols to query (e.g., SWARM|VADER). Cannot be used with 'addresses'. Max 30 symbols."},"addresses":{"type":"string","description":"Pipe-delimited list of token contract addresses (e.g., 0xabc...|0xdef...). Cannot be used with 'symbols'. Max 30 addresses."},"blockchain":{"enum":["ethereum","base"],"type":"string","required":true,"description":"The blockchain network to query."},"quote_symbol":{"enum":["USD","ETH","BTC"],"type":"string","description":"Quote token or currency to return prices in."},"estimate_cost":{"type":"boolean","description":"When true, only returns the SLAM token cost for this request. Does not include token price data."}}},"output":{"status":200,"content":{"application/json":{"schema":{"oneOf":[{"type":"object","required":["block","chain","quote","slam","utc"],"properties":{"utc":{"type":"string","minLength":1,"description":"UTC timestamp of this data (ISO 8601)."},"slam":{"type":"number","format":"double","description":"The SLAM token cost for this API call."},"block":{"type":"integer","format":"int32","description":"The block number for this price snapshot."},"chain":{"type":"string","minLength":1,"description":"The blockchain network name (e.g., 'base')."},"quote":{"type":"string","minLength":1,"description":"Quote token or currency (USD, ETH, BTC)."},"tokens":{"type":"array","items":{"type":"object","properties":{"fdv":{"type":"number","format":"double","nullable":true,"description":"Fully diluted valuation in USD."},"name":{"type":"string","description":"Full token name."},"prev":{"type":"array","items":{"type":"object","properties":{"change":{"type":"string","description":"Price change percentage."},"minutes":{"type":"integer","format":"int32","description":"Lookback period in minutes."}}},"description":"Price change info over 24h."},"price":{"type":"number","format":"double","description":"Current price in selected quote."},"symbol":{"type":"string","description":"Token symbol."},"address":{"type":"string","description":"Token contract address."},"liquidity":{"type":"number","format":"double","nullable":true,"description":"Available liquidity in USD."}}},"description":"List of token price data."}}},{"type":"object","properties":{"slam":{"type":"number","format":"double"}}}]}}},"description":"OK"}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint is live and returns a 402 x402 challenge on Base network with USDC payment","source_url":"https://api.slamai.dev/token/price"},{"claim":"Max amount required is 1000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), equaling $0.001","source_url":"https://api.slamai.dev/token/price"},{"claim":"Supports blockchain parameter with enum values 'ethereum' and 'base'","source_url":"https://api.slamai.dev/token/price"},{"claim":"Accepts pipe-delimited symbols or addresses (max 30) and quote_symbol of USD, ETH, or BTC","source_url":"https://api.slamai.dev/token/price"},{"claim":"Response includes slam cost, chain, block, utc, quote, and tokens array with price, FDV, liquidity, and prev change data","source_url":"https://api.slamai.dev/token/price"}],"useCases":["Fetching real-time prices for a portfolio of ERC-20 tokens on Ethereum or Base","Building a dashboard that displays FDV, liquidity, and 24h price changes for DeFi tokens","Programmatic trading bots that need sub-cent per-call pricing data","Agents comparing token valuations across USD, ETH, and BTC quote currencies","Estimating API call costs before committing to a paid request"],"bestFor":["AI agents needing pay-per-call token price data without API keys","DeFi applications tracking prices on Ethereum and Base","Batch lookups of up to 30 tokens in a single request","Low-cost micropayment access at $0.001 per call"],"notFor":["Historical OHLCV or candlestick chart data","Chains other than Ethereum and Base","High-frequency streaming price feeds (this is a request-response API)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-04-20T22:34:49.878Z"},"updatedAt":"2026-04-22T04:02:47.945Z"}}