# BNBPricer — Institutional BNB Smart Chain (BSC) & Universal EVM Block Explorer

> BNBPricer is an institutional-grade BNB Smart Chain (BSC) & Universal EVM Block Explorer, Real-Time Gas Station, Token Security Auditor, and On-Chain Developer Platform (https://bnbpricer.com).

## Overview
BNBPricer powers lightning-fast, ad-free exploration for BNB Smart Chain (BSC) alongside major EVM networks (Ethereum Mainnet, Base, Arbitrum One, Optimism, Polygon PoS) with instantaneous search, real-time live block feeds, decoded event logs, token holding matrices, and EVM diagnostic guides. Using high-frequency telemetry, EIP-1559 base fee tracking, BEP-20 honeypot scanning, and transaction decode engines, BNBPricer provides full transparency into the BNB Chain and EVM ecosystems.

## Core Capabilities & Portals

### 1. Universal EVM Block Explorer & Omnibar
- [Homepage & Omnibar Search](https://bnbpricer.com/): Search addresses, transactions, blocks, tokens, and contracts across Ethereum, Base, Arbitrum, Optimism, Polygon, and BSC.
- [Verified Transactions Stream](https://bnbpricer.com/txs): Full-width verified transaction stream with decoded method signatures, block height, and gas fees.
- [Verified Blocks Directory](https://bnbpricer.com/blocks): Real-time blocks directory with MEV builder tags, gas target utilization, base fee burn, and block rewards.
- [Pending Mempool Queue](https://bnbpricer.com/txs/pending): Live unconfirmed transactions sorted by gas price priority.
- [Top BEP-20 Tokens Directory](https://bnbpricer.com/tokens): Ranked list of top Ethereum BEP-20 tokens with live pricing, liquidity, and holder analytics.
- [Cluster Node & RPC Status](https://bnbpricer.com/status): Live multi-chain RPC latency (ms), block synchronization, EIP-4844 status, and 99.99% uptime metrics.

### 2. Multi-Chain Gas Station & Programmatic Action Guides
- [BSC Gas Tracker](https://bnbpricer.com/gastracker): Real-time EIP-1559 base fee metrics, priority tips, 7-day x 24-hour congestion heatmap, and EIP-4844 Blob gas pricing.
- [Wallet Gas Burn Analyzer & Twitter Rank](https://bnbpricer.com/gas-spent): Calculate lifetime BNB gas fees burned by any wallet or ENS, benchmark against real-world assets, and share rank cards on X.
- [Token Gas Cost Comparer (USDT/USDC/PEPE/SHIB/WBTC)](https://bnbpricer.com/gas/token/usdt): Programmatic token gas calculator comparing Ethereum L1 vs Layer 2 (Base, Arbitrum, Optimism) transfer and swap fees with 99% savings benchmarks.
- [Interactive Gas Fee Calculator](https://bnbpricer.com/gas-calculator): Real-time USD fiat conversion calculator for native BNB transfers, USDT transfers, PancakeSwap trades, NFT mints, and custom gas limits.
- [Cost to Transfer USDT & Stablecoins](https://bnbpricer.com/gas/cost-to-transfer-usdt): Detailed cost breakdown for BEP-20 stablecoin transfers on Ethereum L1 vs L2 rollups (Base, Arbitrum, Optimism).
- [Cost to Transfer Native BNB](https://bnbpricer.com/gas/cost-to-transfer-eth): Standard 21k gas peer-to-peer BNB transfer fees with Gwei scenarios and historical low-traffic windows.
- [Cost to Swap Tokens on PancakeSwap](https://bnbpricer.com/gas/cost-to-swap-on-uniswap): DEX AMM token swap fees, PancakeSwap V2/V3 router execution costs, and MEV sandwich mitigation.
- [Cost to Mint NFTs (ERC-721 / ERC-1155)](https://bnbpricer.com/gas/cost-to-mint-nft): Smart contract NFT minting gas fees, batch minting savings, and Layer 2 marketplace alternatives.
- [Cost to Bridge Assets to Base](https://bnbpricer.com/gas/cost-to-bridge-to-base): L1-to-L2 bridge deposit costs, rollup bridge gas limits, and 95%+ post-bridge transaction savings.
- [Cheapest Hours & Days for BNB Gas](https://bnbpricer.com/gas/cost-to-cheapest-hours): Empirical analysis of weekly gas patterns: optimal UTC low-congestion windows and weekend schedules.

### 3. Dedicated Multi-Chain Gas Hubs
- [Ethereum Mainnet Gas Hub](https://bnbpricer.com/gas/ethereum): Real-time gas telemetry, base fee, and 24h heatmap for Ethereum Mainnet.
- [Base (Coinbase L2) Gas Hub](https://bnbpricer.com/gas/base): Real-time gas telemetry, base fee, and 24h heatmap for Base (Coinbase L2).
- [Arbitrum One Gas Hub](https://bnbpricer.com/gas/arbitrum): Real-time gas telemetry, base fee, and 24h heatmap for Arbitrum One.
- [Optimism Mainnet Gas Hub](https://bnbpricer.com/gas/optimism): Real-time gas telemetry, base fee, and 24h heatmap for Optimism Mainnet.
- [Polygon PoS Gas Hub](https://bnbpricer.com/gas/polygon): Real-time gas telemetry, base fee, and 24h heatmap for Polygon PoS.
- [BNB Smart Chain Gas Hub](https://bnbpricer.com/gas/bsc): Real-time gas telemetry, base fee, and 24h heatmap for BNB Smart Chain.

### 4. Developer & Security Utilities
- [Live Whale & Smart Money Radar](https://bnbpricer.com/whales): Multi-chain real-time stream of institutional transfers ($250k to $10M+) with CEX inflow/dump risk alerts.
- [Token Security & Honeypot Scanner](https://bnbpricer.com/scanner): Instant automated EVM sandbox security auditor with 0-100 risk score, tax simulations, and liquidity lock verification.
- [Multi-Wallet Watchlist](https://bnbpricer.com/watchlist): Zero-login, 100% private client-side wallet portfolio tracker with localStorage persistence.
- [Calldata & 4-Byte Function Decoder](https://bnbpricer.com/decoder): Decode arbitrary transaction calldata into human-readable function signatures and typed 32-byte chunk parameters.
- [Developer APIs & Real-Time Streams](https://bnbpricer.com/developer): High-performance REST APIs and real-time Server-Sent Events (SSE) telemetry.
- [EVM Error Codes & Diagnostics Directory](https://bnbpricer.com/errors): Searchable directory of 28+ EVM revert errors, custom error selectors, and 1-click gas sponsorship fixes.
- [Token Approvals & Allowance Scanner](https://bnbpricer.com/token-approval): Review and revoke token allowances and smart contract permissions.
- [Address Poisoning & Dust Prevention Guide](https://bnbpricer.com/address-poisoning): Institutional guide and real-time detection heuristics protecting users from vanity lookalike clipboard spoofing.
- [Verify & Publish Contract](https://bnbpricer.com/verifycontract): Solidity source code verification and compiler interface.
- [Broadcast Raw Transaction](https://bnbpricer.com/pushtx): Broadcast signed raw bytecode hex directly to EVM nodes.
- [EVM Unit Converter](https://bnbpricer.com/unitconverter): Convert between Wei, Gwei, Finney, Ether, and USD spot value.

### 5. Embeddable Gas Badges & Social Cards
- [Live Gas Badge (SVG)](https://bnbpricer.com/api/v1/badges/gas.svg): Dynamic live SVG shield badge for GitHub READMEs, docs, and dApps (`?chain=ethereum&style=flat|card`).
- [Dynamic OpenGraph Social Card](https://bnbpricer.com/api/v1/og/card.svg): Dynamic 1200x630px social preview cards for Twitter, Discord, and Telegram (`?title=...&subtitle=...&badge=...`).

### 6. Programmatic EVM Error Diagnostics Knowledge Base (28 Categories)
- [BEP20: transfer amount exceeds balance](https://bnbpricer.com/error/erc20-transfer-amount-exceeds-balance): Sender does not possess enough token balance to fulfill the transfer request.
- [execution reverted: STF (SafeTransferFrom)](https://bnbpricer.com/error/execution-reverted-stf): Contract attempted SafeBEP20.safeTransferFrom without approved allowance or insufficient funds.
- [Out of Gas (intrinsic gas exceeded)](https://bnbpricer.com/error/out-of-gas): Transaction gas limit was lower than the total opcode computational requirements.
- [transaction underpriced (max fee per gas too low)](https://bnbpricer.com/error/transaction-underpriced): Supplied gas price or max fee per gas is below current block baseline fee.
- [insufficient funds for gas * price + value](https://bnbpricer.com/error/insufficient-funds-for-gas): Wallet does not hold enough native BNB/L2 gas tokens to pay maximum transaction fees.
- [nonce too low / replacement transaction underpriced](https://bnbpricer.com/error/nonce-too-low): Transaction was broadcast with a nonce that was already mined in an earlier block.
- [PancakeSwapV2: INSUFFICIENT_OUTPUT_AMOUNT / Slippage Exceeded](https://bnbpricer.com/error/slippage-too-low): Price moved unfavorably during transaction execution beyond the user-configured slippage tolerance.
- [Permit2: Signature Expired / Invalid Nonce](https://bnbpricer.com/error/permit2-expired): EIP-712 permit deadline expired before the transaction was mined by block builders.
- [Ownable: caller is not the owner](https://bnbpricer.com/error/caller-not-owner): Caller account does not hold admin / owner privileges on the smart contract.
- [TransferHelper: TRANSFER_FAILED](https://bnbpricer.com/error/transfer-failed): Token contract returned false or reverted during low-level address.call transfer.
- [Contract Creation Code Storage Out of Gas](https://bnbpricer.com/error/contract-creation-failed): Constructor deployment execution ran out of gas or constructor reverted.
- [Trade Cooldown Active / Max Tx Limit Exceeded](https://bnbpricer.com/error/cooldown-active): Token contract enforces minimum blocks between trades or maximum transaction transfer sizes.
- [PancakeSwapV2: K (Constant Product Invariant Violated)](https://bnbpricer.com/error/uniswap-k-invariant-violated): Reserves calculation violated x * y = k formula, commonly due to unadjusted fee-on-transfer tokens.
- [PancakeSwapV2: INSUFFICIENT_LIQUIDITY](https://bnbpricer.com/error/uniswap-insufficient-liquidity): The requested liquidity pool reserves are empty or insufficient to fulfill the trade volume.
- [PancakeSwapV2Router: EXPIRED](https://bnbpricer.com/error/uniswap-expired): Transaction sat in mempool past the Unix timestamp deadline parameter provided to swapExactTokensForTokens.
- [SafeBEP20: low-level call failed](https://bnbpricer.com/error/safe-erc20-low-level-call-failed): Underlying BEP-20 contract returned non-true boolean or reverted assembly call without revert string.
- [BEP20: insufficient allowance / BEP20InsufficientAllowance](https://bnbpricer.com/error/erc20-insufficient-allowance): Spender address attempted transferFrom with allowance lower than requested token amount.
- [OwnableUnauthorizedAccount(address)](https://bnbpricer.com/error/ownable-unauthorized-account): Modern OpenZeppelin v5 custom error thrown when an unauthenticated wallet invokes onlyOwner methods.
- [Pausable: paused / EnforcedPause()](https://bnbpricer.com/error/enforced-pause): Smart contract functions are currently halted by circuit breaker or governance multisig pause action.
- [ReentrancyGuard: reentrant call](https://bnbpricer.com/error/reentrancy-guard-reentrant-call): A contract function protected by nonReentrant modifier was invoked recursively before completing.
- [Panic(0x11): Arithmetic Operation Underflow/Overflow](https://bnbpricer.com/error/panic-arithmetic-underflow-overflow): Mathematical calculation resulted in integer underflow or overflow in unchecked Solidity 0.8 block.
- [Panic(0x01): Assertion Failed](https://bnbpricer.com/error/panic-assert-false): Internal state invariant violated; assert(condition) evaluated to false and consumed remaining gas.
- [Panic(0x32): Array Accessed at Out-of-Bounds Index](https://bnbpricer.com/error/panic-array-out-of-bounds): Attempted array index lookup was greater than or equal to array.length.
- [L1 Data Fee / Intrinsic Rollup Cost Exceeded](https://bnbpricer.com/error/l1-cost-exceed-balance): User account on Base or Optimism had enough L2 gas but not enough to cover L1 calldata posting cost.
- [Exceeds Block Gas Limit (30,000,000)](https://bnbpricer.com/error/gas-limit-too-high): Transaction gas limit is larger than maximum allowed gas per Ethereum block.
- [Intrinsic Gas Too Low (21,000 required)](https://bnbpricer.com/error/intrinsic-gas-too-low): Supplied gas limit is below the minimum 21,000 gas units required to initialize an EVM transaction.
- [ERC2612: Permit Expired](https://bnbpricer.com/error/signature-expired): Off-chain gasless approval signature deadline timestamp has expired before broadcast.
- [ECDSA: Invalid Signature / Bad Curve Values](https://bnbpricer.com/error/invalid-signature): ecrecover recovered address 0x0 or signature components (v, r, s) were malformed or malleable.

## API Quick Reference

- Base URL: `https://bnbpricer.com/api/v1`
- OpenAPI Docs: `https://bnbpricer.com/docs`
- Complete Reference: [Full LLM Specification](https://bnbpricer.com/llms-full.txt)

### Key Endpoints:
- `GET /health` — Service health check
- `GET /api/v1/explorer/chains` — List supported EVM networks
- `GET /api/v1/explorer/vitals` — Live network vitals (Block, Base Fee, Blob Gas)
- `GET /api/v1/explorer/gas-matrix` — Real-time L1 vs L2 gas comparison
- `GET /api/v1/badges/gas.svg` — Embeddable live gas badge (SVG)
- `GET /api/v1/og/card.svg` — Dynamic OpenGraph social preview card (SVG)
- `GET /api/v1/explorer/gas/stream` — Real-time SSE gas stream
- `GET /api/v1/explorer/feed/stream` — Real-time SSE blocks & txs stream
- `GET /api/v1/explorer/mempool/stream` — Real-time SSE pending mempool stream
- `GET /api/v1/explorer/tokens` — Top BEP-20 token directory data
- `GET /api/v1/explorer/search?q={query}` — Universal multi-chain search query resolution
- `GET /api/v1/explorer/errors` — List all 150+ indexed EVM error diagnostic codes
- `GET /api/v1/ai/context` — Machine-readable system context for LLM agents & answer engines
- `GET /api/v1/ai/explain-tx/{tx_hash}` — Deterministic plain-English transaction synthesis for LLM citation
- `GET /api/v1/ai/explain-error/{error_code}` — Root-cause error diagnosis and code fix for AI tools
- `GET /api/v1/ai/gas-advice` — Natural-language gas timing recommendation engine
- `POST /api/v1/alerts/gas/subscribe` — Web Push & Telegram low gas threshold alerts
- `POST /api/v1/alerts/watch/subscribe` — Real-time whale and contract activity watcher
- `GET /api/v1/explorer/unitconverter` — EVM unit conversion (Wei, Gwei, Ether, USD)
- `GET /labels` — Public directory of 150+ verified company wallets, casinos, DEXs, CEXs, bridges, and MEV builders
- `GET /api/v1/explorer/labels` — JSON API of indexed crypto services and verified casino deposit wallets
- `GET /api/v1/explorer/address/{address}/export/csv` — RFC 4180 CSV export (Standard or Koinly/CoinTracker tax format)
- `GET /api/v1/explorer/address/{address}/export/json` — Structured portfolio & transaction activity JSON export
- `GET /api/v1/explorer/tx/{tx_hash}/export/json` — Single transaction receipt & audit JSON export
### 7. AI Agent Natural Language Query Engine API
- [AI Natural Language Query Engine](https://bnbpricer.com/api/v1/explorer/query?q=current+bsc+gas): Programmatic REST API designed for LLMs and autonomous agents to resolve natural language questions regarding BNB Smart Chain fees, tokens, whales, timing, conversions, and contracts into deterministic structured data and Google QAPage JSON-LD.
- [AI Network Context](https://bnbpricer.com/api/v1/ai/context): Compressed real-time BNB Chain state for LLM prompt context injection.
- [AI Gas Advice](https://bnbpricer.com/api/v1/ai/gas-advice): Actionable gas timing and cost estimation for AI trade execution.