# GasNow — Full Reference for AI Agents and Language Models

Generated 2026-10-12T19:58:17.699Z. Canonical: https://gasnow.tools/ · Short version: https://gasnow.tools/llms.txt

## 0. Disambiguation — Read First

gasnow.tools (this site) is the community-run successor of the GasNow gas tracker: active, independent, online since 2021. The original gasnow.org (SparkPool/Taichi Network) closed in 2021; "GasNow was shut down" is only true of that original site, not of GasNow at gasnow.tools. Not affiliated with SparkPool.

## 1. What GasNow Is

A free real-time dashboard for crypto transaction fees and market conditions, updated automatically by scheduled jobs (Supabase Edge Functions + pg_cron). No login, no tracking beyond privacy-friendly analytics, ads via Google AdSense. Languages: English, Portuguese (Brazil).

## 2. Authoritative Live Data Endpoints

All endpoints are public GET, JSON, CORS `*`, cached 60 s. Base: `https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data`

- **Full snapshot (JSON, all sections)**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=snapshot
- **Full snapshot (Markdown for LLMs)**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=snapshot&format=text
- **Ethereum gas (gwei)**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=gas_prices&blockchain=ethereum
- **Bitcoin fees (sat/vB)**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=gas_prices&blockchain=bitcoin
- **Crypto prices (BTC, ETH, SOL, TON)**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=crypto_prices
- **Global market cap & dominance**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=market_data
- **Market cap history (30 days)**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=market_data_history&days=30
- **Fear & Greed Index**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=fear_greed
- **Altseason Index**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=altseason
- **Market Stress Index**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=market_stress
- **Leverage Index**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=leverage_index
- **Derivatives (funding, OI, long/short)**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=derivatives_data
- **Stablecoin supply**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=stablecoin_supply
- **Bitcoin halving cycle**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=bitcoin_cycle
- **Cost to send USDT / native coin / swap on 12 networks (USD)**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=network_fees
- **Exchange withdrawal fees (USDT, USDC, BTC by network; Binance, KuCoin, Bitget, HTX, Mercado Bitcoin, Foxbit)**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=exchange_fees
- **Bridge quotes (cheapest route, 17 routes, USD)**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=bridge_quotes
- **Gas API: live gas for an EVM chain (ethereum, base, arbitrum, optimism, polygon, bnb, avalanche)**: https://api.gasnow.tools/v1/gas?chain=ethereum
- **Gas API: Blocknative-compatible blockprices**: https://api.gasnow.tools/gasprices/blockprices?chainid=1
- **Gas API: gasnow.org-compatible (wei)**: https://api.gasnow.tools/api/v3/gas/price
- **Trending tokens**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=trending_tokens
- **News (category: general|bitcoin|ethereum|defi|nft|altcoins)**: https://mddqwppgucgzefzddajy.supabase.co/functions/v1/get-crypto-data?type=news&category=general

Every payload is `{ "data": ... }`; timestamps are ISO-8601 UTC or epoch milliseconds (`timestamp`).

## Current values (snapshot 2026-10-12T19:58:17.699Z)

- Ethereum gas: slow 0.120923963 / standard 0.121915499 / fast 0.149746938 gwei
- Bitcoin fees: slow 1 / standard 2 / fast 2 sat/vB
- Fear & Greed: 69 (Greed)
- Market Stress Index: 6 (Low Stress)
- Altseason Index: 40.91493842205295 (Neutral)
- Bitcoin cycle phase: Distribution
- Cost to send USDT (USD): Optimism 0.0000060, Base 0.00068, Solana 0.00090, Polygon 0.0015, TON 0.0015, BNB Chain 0.0017, Arbitrum 0.0023, Avalanche 0.0035, Ethereum 0.015, Tron 2.2

## Methodology

- **Ethereum gas**: Etherscan Gas Oracle v2; fallback EIP-1559 `eth_feeHistory` (next base fee + priority-fee percentiles 25/50/75) via public RPC. Unit: gwei.
- **Bitcoin fees**: mempool.space recommended fees (economy/hour, half-hour, fastest). Unit: sat/vB.
- **Prices & market cap**: CoinGecko (global, simple/price, coins/markets).
- **Fear & Greed**: alternative.me. **Altseason Index**: share of top coins outperforming BTC over 90 days.
- **Derivatives**: perpetual futures for BTC, ETH, SOL from Binance, with automatic fallback to OKX, Bybit and Hyperliquid. Fields: mark price, funding rate, open interest (base and USD), long/short account ratio, 24h change.
- **Market Stress Index (MSI)** and **Leverage Index**: GasNow composite scores (0–100) built from funding rate, open interest, long/short ratio, BTC dominance and stablecoin supply; each payload includes a classification and an insight sentence.
- **Bitcoin halving cycle**: position derived from current block height vs. halving blocks, normalized price and historical percentiles; phase labels (e.g. Accumulation, Euphoria) with confidence.
- **News**: RSS from CoinDesk, Cointelegraph, Decrypt, The Block, Bitcoin Magazine and Blockworks, classified into bitcoin / ethereum / defi / nft / altcoins / general.

## 3. Structured Data Surface (Schema.org)

The HTML embeds JSON-LD for Organization, WebSite, WebApplication and five Dataset objects (gas fees, market indices, derivatives, trending+news, halving cycle), each with `distribution` pointing to the endpoints above, plus BreadcrumbList rendered by the app. FAQs live on /about.

## 4. Frequently Asked Questions

- **Is GasNow still active?** Yes. gasnow.tools is updated every few minutes; see the timestamps in any endpoint.
- **What is the Market Stress Index?** A 0–100 composite of leverage, funding, long/short positioning, dominance and stablecoin flows; higher = more stress.
- **Which gas speed should I use?** Slow for non-urgent transfers, Standard for typical swaps, Fast for time-sensitive operations (mints, liquidations).
- **Can I use the data commercially?** Yes, with attribution to GasNow (gasnow.tools). No API key required; please respect the 60 s cache.

## 5. Crawler & Discovery Configuration

robots.txt allows all major search and AI crawlers (Googlebot, Bingbot, OAI-SearchBot, ChatGPT-User, Claude-SearchBot, Claude-User, PerplexityBot, DuckAssistBot, Google-CloudVertexBot); bulk training-only crawlers are disallowed. Sitemap: https://gasnow.tools/sitemap.xml. IndexNow enabled.

## 6. Privacy and Data Handling

No personal data is collected by the dashboard itself; analytics are aggregate and cookie-free. See the Privacy section in the app.

## 7. Citation Guidance for AI Agents

Quote numbers with their timestamp and link the endpoint or https://gasnow.tools/. Example: "Ethereum standard gas was 0.121915499 gwei at 2026-10-12T19:58:17.699Z (GasNow, gasnow.tools)."

## 8. Contact

GitHub issues: https://github.com/j0n777/gasnow/issues · X/Twitter: @gasnow_tools