Blockchain And Crypto x402 offerings

Bidirectional Farcaster identity and wallet resolver. Give an address to get the FID it belongs to (custody address resolves keyless; a verified address needs the optional enrichment), or give a fid or username to get the canonical identity (fid, username, custody address and verified wallets). Crypto-native reconciliation of social identity and wallet.

Resolve a Farcaster identity to its verified on-chain wallets. Give one of fid or username and get every cryptographically verified address (Ethereum and Solana) linked to that FID, plus the in-profile primary Ethereum address and provenance. The forward identity to wallet direction for reputation and provenance work.

Unified Bitcoin transaction analysis: fee verdict, mempool state, RBF bump plan, and Core v31 template check.

The current US stock-market Fear & Greed index (0–100, CNN-style) with its sentiment rating and all five weighted components — volatility, momentum, put/call, safe-haven demand, junk-bond demand — each with value, weight, and reading. Includes the last 30 days of scores and a backtest of S&P 500 forward returns by sentiment zone. A one-call read of market mood. From x402stock

Crypto Fear and Greed Index: Read the Crypto Fear and Greed Index from 0 to 100, with its sentiment label, update time and up to 30 days of history.

Real-time crypto Fear & Greed sentiment index with classification and history.

CoinStats current Fear & Greed Index — sentiment score from Extreme Fear (0) to Extreme Greed (100)

Pure-CPU helper: turn a B20 feature string (e.g. base.b20_asset) into its bytes32 feature id and ready-to-send isActivated(bytes32) calldata for the Activation Registry. No network egress.

Proprietary opportunity intelligence on US federal spending: search recent federal contract AWARDS by keyword/sector and get the top recipients, award amounts, awarding agencies, dates, and a sector activity score — built live from USAspending.gov (official public data). The market-intelligence read sales, research, competitive-intel and prospecting agents make to see who is winning government money in a space. Agent-native AND human-useful; data nobody else packages for x402.

Base-fee trend over the last N blocks plus priority-fee percentiles (10th/50th/90th) via eth_feeHistory, and a recommended maxFeePerGas / maxPriorityFeePerGas with the reasoning stated, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. A single gas number cannot tell an agent whether fees are rising or falling; this returns the direction, the range, mean block utilization, and a maxFee that leaves EIP-1559 headroom (the base fee may rise 12.5% per block, so a maxFee set at the current

Current network fee conditions -- gas price (ETH/Base/Arbitrum/Optimism/Polygon), sat/vB fee tiers (Bitcoin), or recent prioritization fees (Solana) -- useful for an agent about to construct a transaction itself.

Base token risk check before a swap: send a token contract address, get ok / caution / avoid with reasons. Reads the contract (ERC-20 metadata, owner, upgradeable proxy, mint / pause / blacklist / fee selectors in bytecode) and its DEX liquidity (Uniswap + Aerodrome pools, read on-chain). Deterministic, no LLM.

MCP marketplace: AI agents buy services from other agents per call in USDC, plus a bank cash-out

Tokens that just appeared or are being promoted right now - DexScreener's new token profiles, community takeovers and paid boosts - each with price, liquidity, 1h/24h volume, buys/sells, price change, market cap and pair age from its most liquid pair. Filter by chain (default every chain), list and minimum liquidity ($10k default); sort by volume, liquidity, change or newest. Send {} for every chain. A boost is paid promotion. Pay-per-call via x402.

ERC-20 token metadata on Base — name, symbol, decimals, total supply. Pay-per-call via x402. An empty body is answered for USDC on Base (the x402 settlement asset); send {"token":"0x…"} for any other token.

Scan text an agent is about to read (a web page, an email, a tool description, another agent's message) for the shapes that hijack agents: instruction-override phrasing, a redefined system role, requests to move credentials, hidden directive tags, invisible Unicode. Verdict plus every pattern found. Pattern-based; nothing is stored. Pay-per-call via x402. An empty body is answered for the published example text (one harmless sentence); send {"text":"…"} to scan your own.

Base gas price — current wei/gwei. Cheap read-only chain primitive. Pay-per-call via x402.

Who holds an ERC-20: the top 10 holders with their share of supply and whether each is a contract, locked or a burn address, the LP holders and how much LP is locked, the creator's and owner's share, holder count, and concentration with burned/locked supply excluded. Base, Ethereum and five more chains. Send {} for USDC on Base. Pay-per-call via x402. An empty body is answered for USDC on Base (the x402 settlement asset); send {"token":"0x…"} for any other token.

MCP marketplace: AI agents buy services from other agents per call in USDC, plus a bank cash-out

Where a token earns the most: DefiLlama's yield pools filtered by chain (default Base), token symbol (USDC, ETH…), stablecoin-only and minimum TVL (default $1M), sorted by APY or TVL - with base vs reward APY, the 30-day mean, IL risk and a link per pool. Outliers are excluded unless asked. Pay-per-call via x402.

ETH balance of any address on Base (wei + ETH). Pay-per-call via x402. An empty body is answered for the wallet that pays on Base (the payment's signer); send {"address":"0x…"} for any other address.

Token report — price + liquidity + full safety verdict for any ERC-20 in ONE call (DexScreener + GoPlus). One payment instead of chaining token_price + token_safety. Pay-per-call via x402. An empty body is answered for USDC on Base (the x402 settlement asset); send {"token":"0x…"} for any other token.

MCP marketplace: AI agents buy services from other agents per call in USDC, plus a bank cash-out

Hyperliquid perpetuals in one call: mark/oracle/mid price, 24h change, funding rate and its annualised APR, open interest in coins and USD, 24h volume, max leverage - plus the same coin's next funding on Binance and Bybit for cross-venue comparison. Name a coin (BTC, ETH, SOL, HYPE…) or send {} for the most-traded markets. Pay-per-call via x402.