Coin Railz | Payment Infrastructure for AI Agents — API Key in 60 Seconds

Platform health probe — returns service status, current timestamp, and payment infrastructure readiness. Use as a low-cost connectivity test before calling higher-priced services.

START HERE. The canonical first payment endpoint for any AI agent integrating with Coin Railz. Pay $0.05 USDC on Base or Solana and receive a verified onboarding receipt, payment confirmation, and executable templates for the next 3 services. Both EVM and Solana accepted.

Real-time EIP-1559 gas prices (base fee, priority fee, fast/safe/slow tiers) for Ethereum, Base, Polygon, Arbitrum, and Optimism with USD cost estimates per transaction type.

Create a session-scoped ephemeral EVM wallet for AI agent operations. Returns address and encrypted key material with USDC funding instructions. Designed for single-session autonomous use.

Check whether a wallet owns an ERC-8004 identity NFT on Base mainnet and return an ownership, wallet-activity, and signature status assessment. This service queries existing on-chain records; it does not register an agent, mint an NFT, or write to the IdentityRegistry.

Live cross-platform spread analysis: Polymarket vs Kalshi for identical real-world events. Returns YES probability divergence, arbitrage opportunity ranking by spread magnitude, matchConfidence, actionHint, and edgeBps per opportunity.

NASA Earthdata gateway: precipitation, granule search, SST, soil moisture, and ocean color in one endpoint. Specify the product field to select dataset type and coordinates.

Real-time observed rain rate at any global coordinate from NASA IMERG. Input: latitude, longitude, and date.

MODIS Aqua ocean chlorophyll-a concentration via NASA CMR at 4km resolution. Input: coordinates or bounding box and date range.

Real-time active fire detections from NASA FIRMS (MODIS + VIIRS). Returns fire radiative power, confidence level, and coordinates for any bounding box within the past 24 hours.

Atmospheric pollutant concentrations (NO2, SO2, CO, O3, aerosols) from ESA Sentinel-5P TROPOMI satellite for any global coordinate or bounding box.

Real-time fleet data from IoT-connected vehicles: GPS location, fuel consumption, driver behavior scores, and route efficiency metrics. Requires registered fleet deviceId.

Single sensor reading from a registered IoT device: temperature, humidity, pressure, CO2, or motion. Requires a registered deviceId. Returns timestamped value with unit and quality flag.

Pay-per-call GPT-4o-mini inference via x402 micropayment — no API key required. Supports system prompt, user message, and temperature. Returns completion text.

Metadata, total supply, compliance mode, and freeze status for any B20 Native Token Standard token on Base mainnet. Returns ERC-20 fields plus B20-specific compliance fields. Gracefully handles plain ERC-20 tokens.

Real-time token price and pool data for any token on Robinhood Chain (eip155:4663) via Chainlink SVR feeds. Returns price, 24h change, and top liquidity pool.

Top DEX liquidity pools on Robinhood Chain. Pass a token address for token-specific pools, or omit for chain-wide top pools by liquidity. Includes fee tier, 24h volume, and pool addresses.

Synthetic market-based NAV estimate for RWA tokens (real estate, private credit, tokenized treasuries). Returns current NAV per share, implied yield, and protocol metadata.

Live APY comparison across tokenized RWA protocols: Ondo (USDY), Backed (bIB01), Superstate (USTB), Mountain Protocol (USDM), OpenEden (TBILL), Hashnote (USYC), Maple Finance. Sourced from DeFi Llama.

Token name, symbol, decimals, total supply, and contract details for any ERC-20 on Ethereum, Base, Polygon, or Arbitrum. Resolves from on-chain state — no centralized API dependency.

Real-time liquidity depth, TVL, price impact, and 24h volume for a token pair across Uniswap V2/V3, Curve, and Aerodrome. Input: token pair + chain.

Check current ERC-20 allowances and generate unsigned approve() calldata for any spender on any EVM chain. Required pre-step before DEX swaps or DeFi protocol interactions.

Token price, 24h change, volume, and market cap from CoinGecko and DEX Screener. Covers 10,000+ tokens including long-tail assets unavailable on major centralized exchanges.

Social sentiment score for any token from X/Twitter and Reddit. Returns bullish/bearish ratio, momentum direction, and top discussion themes over configurable time windows.

Encode and prepare any EVM transaction: ABI encoding, calldata construction, gas estimation, and nonce lookup for Ethereum, Base, Arbitrum, and Optimism.

Recent large-value wallet transfers for any token or address: amount, sender/receiver, exchange flow direction, and historical pattern context. Threshold configurable, defaults to >$50K.

DEX swap quotes for multiple token pairs in a single call. Returns best route, price impact, gas estimate, and minimum received per pair — reduces round-trips for agents comparing multiple swaps.

Native token and ERC-20 balances for an EVM wallet across Ethereum, Base, Polygon, Arbitrum, Optimism, and 2 more chains in a single call. Returns balances with live USD values.

Top trending tokens ranked by composite score: social volume, price momentum, DEX activity, and whale accumulation patterns. Returns ranked list with 24h stats and risk flags.

Real-time portfolio value, PnL, and allocation breakdown for any EVM wallet. Aggregates token balances with live USD prices and 24h performance across multiple chains.

Multi-factor wallet risk report: sanctions exposure, mixer interactions, darknet market activity, and concentration risk. Returns risk tier (LOW/MEDIUM/HIGH/CRITICAL) with evidence and recommended actions.

AI crypto trading signals with entry price, stop-loss, take-profit, position size recommendation, and risk/reward ratio. Based on technical indicators and on-chain flow analysis.

Process USDC payments across EVM chains with automatic routing and fee optimization. Returns transaction receipt, confirmed amount, and destination chain confirmation.

Smart contract security scan returning a safety score (0-100) and structured vulnerability findings (reentrancy, overflow, access control, logic flaws) for any deployed EVM contract address.

Create a persistent Coinbase Developer Platform (CDP) managed wallet for AI agents on Base mainnet. Returns wallet address and API credentials for long-running autonomous deployments.

Cross-chain bridge calldata via Across Protocol for Ethereum, Base, Arbitrum, Optimism, and Polygon. Returns unsigned bridge transaction with fee breakdown, estimated settlement time, and minimum received.

Informational technical regulatory-analysis output for DeFi protocols, token launches, and on-chain operations. It is not legal advice or a regulated compliance service.

AI security audit for Solidity contracts: reentrancy, overflow/underflow, access control, and business logic flaws. Returns severity-ranked findings (CRITICAL/HIGH/MEDIUM/LOW) with line references and remediation guidance.

AI-powered real estate property valuation using comparable sales, zoning data, and market trends. Returns estimated value range with confidence interval and key value drivers.

Commercial lease terms extraction and risk analysis. Returns key clauses (rent escalation, break options, TI allowance), market rate comparison, and red-flag summary.

Construction site progress assessment using multi-source satellite imagery and AI analysis. Input site coordinates and date range; returns phase classification and change detection report.

Informational technical fraud-risk output for an on-chain transaction or wallet. It is not banking, legal, or regulated advice.

Informational technical on-chain risk score for an EVM wallet. It is not credit underwriting, lending, banking, or regulated advice.

Informational technical wallet-risk output based on configured data sources. It is not legal advice, a banking service, or a regulated compliance determination.

Aggregated market sentiment for any crypto asset from X/Twitter, Reddit, and news sources. Returns bullish/bearish score (0-100), momentum signal, and 24h sentiment delta.

Technical analysis signals — RSI, MACD, Bollinger Bands, volume profile, and trend strength — for any crypto pair. Returns buy/sell/hold verdict with confidence interval and key price levels.

AI crypto portfolio rebalancing using Modern Portfolio Theory. Input current holdings and risk tolerance; returns target allocation with projected Sharpe ratio and expected return improvement.

Price correlation matrix for up to 10 crypto assets over 7/30/90-day windows. Returns Pearson coefficients to identify diversification gaps and correlated risk in a portfolio.

Portfolio risk metrics: Value at Risk (95%/99% confidence), Sharpe ratio, max drawdown, and Sortino ratio for any token or portfolio, based on historical price data.

Scan for real-time arbitrage opportunities across Uniswap, Curve, and Balancer. Returns path, estimated gross profit, gas cost, and net yield per opportunity.