Base Token Risk Check

Endpoints (22 live)

• POST /v1/token-check — Pay-per-call token risk check for Base: send a Base ERC-20 contract address, get deterministic JSON risk flags (owner/renounced, upgradeable proxy, mint/pause/blacklist/fee functions, on-chain Uniswap v2/v3 + Aerodrome liquidity, holder concentration) and a rule-based risk_level. Use before buying or listing an unfamiliar Base token. $0.01 USDC. Invalid input returns 400 and is not charged. Not financial advice. (0.01 USDC on Base)
• POST /v1/address-screen — Pay-to / counterparty address screen for Base: exact match against OFAC SDN published digital currency addresses (daily refresh, list date included), contract vs EOA, Blockscout verification, first-seen age and tx count, lookalike (address-poisoning) check vs an optional compare_to, labels, and a block/caution/ok verdict. $0.005 USDC. Screening aid only, not a compliance clearance or legal advice. (0.005 USDC on Base)
• POST /v1/pretrade-check — Pre-trade sellability / honeypot check for Base tokens: simulates a buy, a wallet transfer and a sell of a Base ERC-20 on live Base state (Uniswap v2/v3 or Aerodrome; nothing is signed or spent). Returns buy/sell/transfer success, measured tax %, revert reason and a simulation-driven verdict (ok/caution/avoid/unknown); owner/holder flags go in risk_flags. $0.02 USDC. Invalid input is not charged. Informational, not financial advice. (0.02 USDC on Base)
• POST /v1/address-screen/batch — Batch pay-to address screen for Base: up to 25 addresses per call (optional shared compare_to), same JSON per address: OFAC SDN exact match, contract/EOA, age, lookalike, verdict. $0.08 USDC. Screening aid only, not a compliance clearance or legal advice. (0.08 USDC on Base)
• POST /v1/token-check/batch — Batch Base token risk check: up to 10 Base ERC-20 addresses per call, same JSON per token. $0.08 USDC. Not financial advice. (0.08 USDC on Base)
• POST /v1/pretrade-check/batch — Batch pre-trade sellability / honeypot check for Base: up to 10 Base ERC-20 addresses per call, same simulated buy/transfer/sell JSON per token. $0.15 USDC. Informational, not financial advice. (0.15 USDC on Base)
• POST /v1/exclusion-check — Organization-only public-list screen: organization name and/or 10-digit NPI against HHS OIG LEIE entity records and the Texas HHSC-OIG entity file. Returns possible-match or no-match, source, file date, and public record fields. $0.02 USDC. Not a consumer report and not a hiring decision. Person-name, SSN, and date-of-birth searches are rejected. (0.02 USDC on Base)
• POST /v1/search — English Wikipedia topic search: up to 5 titles, urls, and snippets from the public MediaWiki API (no upstream API key). Body {"q":"..."}, max 120 characters. $0.01 USDC. Not a person lookup, background check, people search, or consumer report. SSN queries are rejected. (0.01 USDC on Base)
• POST /v1/usdc-blacklist/batch — Batch Base USDC issuer blacklist: up to 25 addresses, one multicall, same isBlacklisted and paused JSON per address. $0.08 USDC. Not an OFAC screen, not a consumer report. (0.08 USDC on Base)
• POST /v1/exclusion-check/batch — Batch organization-only public-list screen: up to 10 organizations per call (name and/or 10-digit NPI), same possible-match or no-match JSON per organization. $0.15 USDC. Not a consumer report and not a hiring decision. (0.15 USDC on Base)
• POST /v1/usdc-blacklist — Base USDC issuer blacklist: live isBlacklisted(address) on Circle native USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) plus whether that contract is paused. block if blacklisted, caution if USDC is paused. $0.01 USDC. Not an OFAC screen, not a consumer report. (0.01 USDC on Base)
• GET /v1/usdc-blacklist (free)
• GET /v1/usdc-blacklist/batch (free)
• GET /v1/search (free)
• GET /v1/exclusion-check/batch (free)
• GET /v1/exclusion-check (free)
• GET /v1/pretrade-check (free)
• GET /v1/address-screen/batch (free)
• GET /v1/pretrade-check/batch (free)
• GET /v1/address-screen (free)

+2 more endpoints.