{"uid":"cap_1KObYAQ5XDeFeFE7HAVEB","slug":"true402-base-new-pairs-2cb7f196","name":"true402 Base New Pairs","description":"The machine-native marketplace. Wallet = identity. Pay per call with HTTP 402.","url":"https://true402.dev/api/v1/base/new-pairs","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"dex":{"enum":["uniswap-v3","aerodrome"],"type":"string","description":"Filter: 'uniswap-v3' | 'aerodrome'"},"limit":{"type":"number","description":"Max pairs (1–200, default 50)"},"since":{"type":"number","description":"Only pairs first seen at or after this block"},"withToken":{"type":"boolean","description":"Only token launches (default true)"}}},"responseSchema":{"type":"object","properties":{"chain":{"type":"string"},"count":{"type":"number"},"pairs":{"type":"array","description":"dex, pool, token (the new token), quote (WETH/USDC), fee|stable, block, ageBlocks, ageSecondsApprox, txHash (pool-creation tx, where recorded — verify the row on-chain)"},"latestBlock":{"type":"number","description":"Highest block the watcher has indexed"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_9k4-38WvHQD1VU1jRZSeS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches newly created trading pairs on Base chain DEXes (Uniswap v3 or Aerodrome), optionally filtered to token launches only","exampleAgentPrompt":"Show me the 100 most recent token launches on Uniswap v3 on Base since block 12500000 — only pairs that are actual token launches.","exampleUseCases":null,"resultDescription":"A list of newly created trading pairs on the specified Base chain DEX, including pair metadata such as token addresses, creation block, and DEX source, filtered by the requested criteria.","failureModes":["Invalid DEX name (not 'uniswap-v3' or 'aerodrome') returns an error","Limit out of range (outside 1–200) returns a validation error","Payment failure via HTTP 402 if USDC wallet balance is insufficient","No pairs found matching the since-block filter returns empty list","Network or RPC timeout for on-chain data queries"],"whenToPreferThis":"Use this endpoint when you need real-time discovery of newly created trading pairs or token launches on Base chain DEXes, specifically Uniswap v3 or Aerodrome. Prefer it over generic blockchain explorers when you want structured, filtered pair data without parsing raw chain events.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:53:16.300Z","isFirstParty":false}