{"uid":"cap_1TovwQlcfB2YCIe4QuICQ","slug":"b20-new-tokens-on-base-fabe6170","name":"B20 New Tokens on Base","description":"Recently deployed B20 tokens on Base: scans the factory's B20Created logs over a block window, locates each new token by its 0xB200 address prefix, and enriches it with live name/symbol/decimals eth_calls. ?blocks=50000&limit=25","url":"https://agent402.tools/api/b20-new-tokens","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":{"limit":{"type":"number","description":"max tokens returned, newest first (default 25, max 100)"},"blocks":{"type":"number","description":"lookback window in blocks (default 50000 ≈ 28h, max 200000)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["network","factory","fromBlock","toBlock","scannedFromBlock","truncated","count","skipped","tokens"],"properties":{"count":{"type":"integer"},"tokens":{"type":"array"},"factory":{"type":"string"},"network":{"type":"string"},"skipped":{"type":"integer"},"toBlock":{"type":"integer"},"fromBlock":{"type":"integer"},"truncated":{"type":"boolean"},"scannedFromBlock":{"type":"integer"}}}}}}},"responseSchema":{"type":"json","example":{"count":0,"tokens":[],"factory":"0xb20f000000000000000000000000000000000000","network":"base","skipped":0,"toBlock":2,"fromBlock":1,"truncated":false,"scannedFromBlock":1}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_cPcNdyzJY5RsawRTSMKcI","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Scans recent Base blockchain blocks for newly deployed B20 tokens, enriching each with live name, symbol, and decimals data via eth_calls.","exampleAgentPrompt":"Can you show me the 25 most recently deployed B20 tokens on Base, looking back across the last 50000 blocks, with their names, symbols, and decimals?","exampleUseCases":null,"resultDescription":"A list of up to 100 newly deployed B20 tokens on Base, ordered newest-first, each enriched with its contract address (0xB200-prefixed), token name, symbol, and decimals as retrieved via live eth_calls.","failureModes":["blocks parameter exceeds max of 200000 — returns error","limit parameter exceeds max of 100 — returns error","No new B20 tokens found in the specified block window — returns empty list","RPC or eth_call failure for enrichment — partial or degraded token metadata","Payment of $0.005 USDC not fulfilled — 402 Payment Required response"],"whenToPreferThis":"Use this endpoint when you need to discover recently launched B20-standard tokens on Base with live on-chain metadata. Prefer it over generic token scanners when you specifically need the 0xB200 address prefix filter, B20Created factory log scanning, and simultaneous name/symbol/decimals enrichment in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T19:14:04.893Z","isFirstParty":false}