# Services from 402.com.tr on Zero

> 402.com.tr serves 164 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/402.com.tr
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/402.com.tr/health.json

## Services

- [Business Days Calculator](https://www.zero.xyz/c/business-days-calculator-3afea475/llms.txt): $0.002/call via x402. Add a number of business days to a date, or count business days between two dates, for ~110 countries with country-specific weekends and national public holidays.
- [Safe to Send](https://www.zero.xyz/c/safe-to-send-60e0f2ae/llms.txt): $0.01/call via x402. Screens a blockchain address for OFAC sanctions, identity, wallet vs contract status, age, and upgrade risk before sending funds — returning a single GO/REVIEW/STOP verdict.
- [402.com.tr Basename Profile Resolver](https://www.zero.xyz/c/402-com-tr-basename-profile-resolver-024429bf/llms.txt): $0.02/call via x402. Resolves the full Base identity profile (address, avatar, description, website, social handles) for a given Basename or wallet address using Base L2 Resolver text records.
- [Batch Page Reader](https://www.zero.xyz/c/batch-page-reader-e7397a6d/llms.txt): $0.01/call via x402. Fetches up to 5 URLs and returns each page as clean extracted text with title, including JavaScript-rendered SPAs and dynamic dashboards that server-side fetches cannot read.
- [Counterparty Check](https://www.zero.xyz/c/counterparty-check-fc1145a6/llms.txt): $0.12/call via x402. Validates a counterparty by checking domain age (RDAP), email deliverability (DNS), OFAC sanctions status, and LEI register existence, returning a single GO/HOLD/STOP verdict with all supporting signals.
- [Exa Contents](https://www.zero.xyz/c/exa-contents-15327536/llms.txt): $0.002/call via x402. Fetches clean text, title, author, and publish date for up to 5 URLs using Exa's own crawl index, bypassing server-side GET blocks.
- [IBAN Check](https://www.zero.xyz/c/iban-check-a873d14f/llms.txt): $0.002/call via x402. Validates an IBAN offline by checking country registry length, structure, and ISO 7064 mod-97 checksum, returning normalized form, country, SEPA membership, and bank identifier.
- [402.com.tr Sign Guard — Pre-Sign Calldata Risk Screener](https://www.zero.xyz/c/402-com-tr-sign-guard-pre-sign-calldata-risk-screener-d733754f/llms.txt): $0.06/call via x402. Decodes raw unsigned EVM calldata (approve/permit/transfer/setApprovalForAll) and screens the destination/spender for OFAC sanctions and dangerous owner powers, returning a GO/HOLD/STOP verdict before signing.
- [Exit Liquidity Check](https://www.zero.xyz/c/exit-liquidity-check-b8e7d2f8/llms.txt): $0.02/call via x402. Estimates buy and sell price impact for a Base token at a given trade size and identifies the largest safe exit position without collapsing the pool.
- [B20 Token Role-Based Access Control (RBAC) Inspector](https://www.zero.xyz/c/b20-token-role-based-access-control-rbac-inspector-db9c38a4/llms.txt): $0.05/call via x402. Reads onchain role-based access control events for a Base-native B20 token to identify who holds mint, burn, seize, pause, and admin powers, and assesses how centralized or renounced those controls are.
- [402.com.tr Contract Danger Scanner](https://www.zero.xyz/c/402-com-tr-contract-danger-scanner-739f1e57/llms.txt): $0.04/call via x402. Reads a verified smart contract's ABI and flags owner-callable abuse functions that could harm token holders, such as mint, pause, blacklist, setFee, withdraw, or upgrade.
- [Domain Check via RDAP](https://www.zero.xyz/c/domain-check-via-rdap-fc2915c5/llms.txt): $0.02/call via x402. Returns registration age, expiry, registrar, EPP status codes, nameservers, and DNSSEC status for any domain, with a GO/HOLD/STOP fraud-risk verdict based on RDAP data.
- [Fiat Onramp Quote](https://www.zero.xyz/c/fiat-onramp-quote-e6628df7/llms.txt): $0.03/call via x402. Prices a fiat-to-crypto purchase across all available payment methods for a given country and ranks them by net amount received, with live Coinbase pricing.
- [FX Convert (ECB Reference Rates)](https://www.zero.xyz/c/fx-convert-ecb-reference-rates-060dc7bc/llms.txt): $0.002/call via x402. Converts between 30+ currencies using the European Central Bank's daily reference rate for today or any historical date, returning the converted amount, per-unit rate, and actual rate date.
- [Holder Forensics](https://www.zero.xyz/c/holder-forensics-51b9a3ee/llms.txt): $0.03/call via x402. Classifies a token's holder base into creator/owner holdings, benign infrastructure wallets (LP/CEX/bridge), and unlabelled wallets that pose real dump risk, plus identifies the largest non-infrastructure wallet.
- [Password Breach Check (k-Anonymity via Have I Been Pwned)](https://www.zero.xyz/c/password-breach-check-k-anonymity-via-have-i-been-pwned-a051f053/llms.txt): $0.005/call via x402. Checks whether a password has appeared in known data breaches using k-anonymity (only a 5-char SHA-1 prefix is sent), returning a GO/HOLD/STOP signal plus occurrence count.
- [402.com.tr Token Risk Scorer](https://www.zero.xyz/c/402-com-tr-token-risk-scorer-9518c876/llms.txt): $0.03/call via x402. Returns a live-computed risk score and safety flags (ERC-20 conformance, ownership renounce, upgradeable proxy) for a Base token contract address.
- [URL to Text Extractor](https://www.zero.xyz/c/url-to-text-extractor-ac950fc0/llms.txt): $0.002/call via x402. Fetches a web page from a URL and returns clean, furniture-stripped text along with its title, description, and site name
- [4-Byte Function Selector Decoder](https://www.zero.xyz/c/4-byte-function-selector-decoder-4dc1340a/llms.txt): $0.01/call via x402. Resolves a 4-byte Ethereum function selector or calldata prefix to candidate human-readable ABI function signatures via 4byte.directory
- [Address Intelligence](https://www.zero.xyz/c/address-intelligence-f90537a2/llms.txt): $0.02/call via x402. Checks an Ethereum/Base address for EOA vs contract classification, ETH and USDC balances, transaction count, and activity level via Base RPC.
- [Base Address Nonce](https://www.zero.xyz/c/base-address-nonce-fb97bc93/llms.txt): $0.002/call via x402. Returns the next transaction nonce, ETH balance, and contract status for any Base network address
- [402.com.tr Address Trust & Identity Check](https://www.zero.xyz/c/402-com-tr-address-trust-identity-check-f46a4980/llms.txt): $0.03/call via x402. Checks a Base address for Coinbase onchain KYC verification (EAS attestation) and Basename, returning a verified/named/anonymous verdict with a trust score
- [Agent File Slot](https://www.zero.xyz/c/agent-file-slot-b899acc1/llms.txt): $0.005/call via x402, rated 3.0/5 (1 review). Returns a signed PUT URL and retrieval URL so an agent can upload a file directly to storage without routing bytes through this API
- [AI Smart Contract Risk Analyzer](https://www.zero.xyz/c/ai-smart-contract-risk-analyzer-44edeb10/llms.txt): $0.04/call via x402. Analyzes a smart contract's ABI and security flags using Claude to explain dangerous owner capabilities (mint, pause, blacklist, upgrade, self-destruct) and assign a danger level.
- [402.com.tr AI Extract Batch](https://www.zero.xyz/c/402-com-tr-ai-extract-batch-de9f5285/llms.txt): $0.1/call via x402. Batch-extracts structured fields from up to 10 documents in a single paid API call, returning one schema-enforced JSON object per document.
- [402.com.tr AI Text Summarizer](https://www.zero.xyz/c/402-com-tr-ai-text-summarizer-bbbbd31b/llms.txt): $0.03/call via x402. Accepts a block of text and returns a 3-5 bullet-point summary generated by Claude, with pay-per-call billing via x402.
- [402.com.tr AI Token Risk Report](https://www.zero.xyz/c/402-com-tr-ai-token-risk-report-c1c34b42/llms.txt): $0.12/call via x402. Aggregates token risk, holder concentration, price/liquidity, and OFAC sanctions data for a Base token, then synthesizes a structured AI verdict with risks and positives.
- [Base Transaction Explainer](https://www.zero.xyz/c/base-transaction-explainer-ae5b6a68/llms.txt): $0.04/call via x402. Takes a Base blockchain transaction hash and returns a plain-English explanation of what the transaction did, including action summary, risk assessment, and contextual notes.
- [402.com.tr AI Wallet Report](https://www.zero.xyz/c/402-com-tr-ai-wallet-report-c54f1032/llms.txt): $0.06/call via x402. Aggregates net worth, age/activity, and recent transactions for a blockchain wallet, then uses Claude to synthesize a human-readable intelligence verdict with key observations.
- [402.com.tr AI Wallet Security Audit](https://www.zero.xyz/c/402-com-tr-ai-wallet-security-audit-79f66832/llms.txt): $0.06/call via x402. Fetches active token approvals for a wallet and uses Claude to generate a security audit with risk level, USD at risk, and specific revoke recommendations.
- [402.com.tr Approval Advisor](https://www.zero.xyz/c/402-com-tr-approval-advisor-32e7cf47/llms.txt): $0.05/call via x402. Ranks a wallet's active token approvals by risk priority (USD-at-risk × unlimited allowance × unlabelled spender) and returns a prioritised revoke queue.
- [B20 Token Institutional Due-Diligence Dossier](https://www.zero.xyz/c/b20-token-institutional-due-diligence-dossier-22edfab7/llms.txt): $0.75/call via x402. Produces a comprehensive institutional-grade due-diligence report on a B20 token, including issuer control powers, seizure/freeze/pause history, access model, supply-cap headroom, and an AI-written hold/avoid recommendation with risk scoring.
- [B20 Token Freeze Check](https://www.zero.xyz/c/b20-token-freeze-check-e9dc1a27/llms.txt): $0.03/call via x402. Checks whether a specific wallet is authorized under a B20 token's transfer-sender policy, determining if it can be seized or frozen by the token issuer.
- [402.com.tr B20 Stablecoin Peg Verification](https://www.zero.xyz/c/402-com-tr-b20-stablecoin-peg-verification-d761618f/llms.txt): $0.03/call via x402. Checks whether a B20 stablecoin's declared currency peg matches its actual DEX market price, returning a status of on_peg, depeg_warning, depegged, no_market, or unverifiable_fx.
- [B20 Permit Data Reader (DOMAIN_SEPARATOR, Nonce, EIP-712)](https://www.zero.xyz/c/b20-permit-data-reader-domain-separator-nonce-eip-712-480dfd7d/llms.txt): $0.03/call via x402. Returns ERC-2612 permit parameters for a B20 token — DOMAIN_SEPARATOR, owner nonce, and EIP-712 domain/type structs — so an agent can build a valid gasless approval signature.
- [402.com.tr B20 Portfolio Freeze/Seize Risk Scanner](https://www.zero.xyz/c/402-com-tr-b20-portfolio-freeze-seize-risk-scanner-f30266a7/llms.txt): $0.06/call via x402. Scans a wallet's entire Base-native B20 token holdings for protocol-level freeze, seize, and rebase risks, and checks whether the wallet is already blocked on any held token.
- [B20 Token Safety Check](https://www.zero.xyz/c/b20-token-safety-check-f5e712cd/llms.txt): $0.04/call via x402. Checks a Base B20 token address for protocol-level powers (freeze, seize, pause, rebase, uncapped-mint) and returns a hold/caution/avoid safety verdict
- [B20 Transfer Preflight Check](https://www.zero.xyz/c/b20-transfer-preflight-check-0fbe442d/llms.txt): $0.04/call via x402. Runs a per-transaction compliance preflight on a B20 token transfer, resolving sender, receiver, and executor policies plus live transfer-pause state to return GO/HOLD/STOP.
- [Base Block](https://www.zero.xyz/c/base-block-bad70ed1/llms.txt): $0.002/call via x402. Fetches raw block metadata from the Base blockchain by block number, hash, or tag (latest/finalized/safe/earliest)
- [402.com.tr Base Chain Status](https://www.zero.xyz/c/402-com-tr-base-chain-status-c15ccb65/llms.txt): $0.01/call via x402. Returns live Base chain snapshot including latest block, base fee, priority fee, current ETH price, and estimated USD cost of a simple ETH transfer
- [Basename Resolver](https://www.zero.xyz/c/basename-resolver-912d1211/llms.txt): $0.01/call via x402. Resolves Base L2 Basenames to Ethereum addresses (forward) or Ethereum addresses to their primary Basename (reverse) using the Base L2 Resolver.
- [Base Receipt Lookup](https://www.zero.xyz/c/base-receipt-lookup-98049e3a/llms.txt): $0.002/call via x402. Retrieves the full receipt for a Base blockchain transaction by hash, including success/revert status, block, gas used, fees, logs, and contract deployment address.
- [Base Transaction Lookup by Hash](https://www.zero.xyz/c/base-transaction-lookup-by-hash-cdb284ac/llms.txt): $0.002/call via x402. Fetches detailed on-chain data for a Base network transaction by its hash, including value, gas, fees, method selector, and explicit flags for contract creation and pending status.
- [Base Withdrawal Decoder & Finalizer (post-Beryl)](https://www.zero.xyz/c/base-withdrawal-decoder-finalizer-post-beryl-2f452410/llms.txt): $0.04/call via x402. Decodes a Base withdrawal-initiation transaction to extract the L2ToL1MessagePasser event details and estimates finalization windows under post-Beryl (2026-06-25) rules.
- [402.com.tr OFAC Sanctions Batch Screener](https://www.zero.xyz/c/402-com-tr-ofac-sanctions-batch-screener-0de7ab29/llms.txt): $0.03/call via x402. Screens up to 25 blockchain addresses against OFAC sanctions lists in a single batch call, returning a per-address result and a flagged subset.
- [402.com.tr Multi-Token Price Feed](https://www.zero.xyz/c/402-com-tr-multi-token-price-feed-3ce51988/llms.txt): $0.02/call via x402. Returns the current USD price and 24-hour percent change for up to 10 Base chain token addresses in a single call.
- [402.com.tr Batch Base Token Rug-Risk Screener](https://www.zero.xyz/c/402-com-tr-batch-base-token-rug-risk-screener-c72d5378/llms.txt): $0.08/call via x402. Screens up to 10 Base token addresses in one call, returning a 0-100 rug-probability score, risk level, and top risk signals for each, sorted riskiest-first.
- [BIC / SWIFT Code Validator](https://www.zero.xyz/c/bic-swift-code-validator-1994744c/llms.txt): $0.002/call via x402. Validates a BIC/SWIFT code offline against ISO 9362 structural rules, identifying which specific check failed on rejection.
- [402.com.tr Commerce Escrow Reconciliation](https://www.zero.xyz/c/402-com-tr-commerce-escrow-reconciliation-45b9b784/llms.txt): $0.04/call via x402. Reconciles two-phase auth/capture payments on Base's Commerce Payments protocol, returning escrow status (captured, voided, refunded, reclaimable, etc.) filterable by payment hash, payer, receiver, or operator.
- [Company LEI Lookup](https://www.zero.xyz/c/company-lei-lookup-edeef04f/llms.txt): $0.005/call via x402. Looks up a company in the GLEIF global Legal Entity Identifier register and returns its LEI code, legal name, entity status, jurisdiction, and address with exact-match filtering.
- [402.com.tr Compliance Check](https://www.zero.xyz/c/402-com-tr-compliance-check-8131ff92/llms.txt): $0.03/call via x402. Screens 

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