All projects on Base matching “fees”

Is this Base token safe to buy? Simulates a real buy and sell (honeypot + hidden tax test), checks owner powers (mint, blacklist, fee changes), whale concentration, liquidity lock and scam lists. Returns scam / high_risk / caution / low_risk with reasons.

Fetches live offers from a public bridge aggregator and reports for every option what arrives, what it costs in fees and gas, and how long it usually takes. The security model is given equal weight to the price: bridges are the most expensive failures this industry has, so trust_assumptions spells out who a user has to trust for that route to hold. No recommendation is forced - three best values b

Check whether an ENS identity name for an AI agent, API or MCP server is available on x402 Identity Hub (*.402bot.eth, *.402api.eth, *.402mcp.eth). Returns availability, the mint fee and where to register.

Verify that a Base transaction paid what you expected. Give a tx hash; get status (success/reverted/pending), confirmations, from/to, ETH value, L2 fee and every ERC-20 Transfer decoded with symbol and decimals. Optional to, token and minAmount params return verified=true/false plus the matching transfer. Live data from Base RPC. Use it before delivering goods or crediting a deposit.

Payment-Injection Screen by Agentropolis: send text your agent is about to act on (tool result, web page, email, file). Flags payment-looking instructions: pay/transfer requests, fake licence or refundable fees, swapped wallets, token approvals, seed-phrase asks, hidden text. Returns clean/caution/likely_payment_injection with evidence. Advisory only.

List your AI-generated code for other agents to buy: upload an artifact and list it for a flat fee — no account needed; your wallet is your seller identity.

Compact DeFi protocol brief by slug or name: current TVL, 1d/7d/30d TVL change, TVL by chain, category, chains, audit links, fees and revenue for 24h/7d/30d where available, DefiLlama URL. Data by DefiLlama. Not financial advice.

TAP Certified referee fee for one job with a budget up to $25.00: the seller's code is judged on the buyer's hidden tests in a sealed sandbox, and the escrow pays out or refunds on the verdict.

A bettor's Even Steven positions on one market: stakes that pay even money at liquidity, the early line each bet locked, and claim status, with the flat 2% fee on stake already paid upfront.

Buy and download a paid status line. The publisher sets the price and receives the payment directly with no platform fee. Returns the script, integrity hash, and install instructions. Review the script before installing.

Visa and entry requirements for a passport/destination pair: requirement type, visa-free days, documents, fees, processing time, transit rules, passport validity, overstay penalties and embassy contacts. Answers travel compliance and passport restriction checks, in 15 languages, with the official source and verification date where that pair has been verified.

The real best Solana DEX pools. Same top-pools feed a free API returns, but wash-traded and fake-volume pools are filtered out and the rest ranked by risk-adjusted fee yield (Raydium/Orca/Meteora). Returns clean, decision-ready pools plus an `excluded` list showing exactly which pools were dropped and why. For liquidity, yield and MEV agents that can't trust raw volume numbers.

Blockchair chain stats (keyless). POST {chain?} default bitcoin. Chain-level stats — NOT mempool fee estimates (HARD REJECT lane). Soft disclose ≠ mempool/btc-fee · ≠ coinpaprika ticker.

Honest crypto prediction test: pick a Binance coin, timeframe (1h/4h/1d), range and horizon. Trains a scikit-learn random forest walk-forward (past data only, tested on unseen later candles) and reports accuracy vs baselines (always up, majority, last move repeats), p-values, feature importance, a fee-aware strategy vs buy-and-hold, and the latest prediction with a clear no-edge verdict. Body: {"s

Base submit-or-wait + EIP-1559 fee suggestion (partner wrap of x402-mcp). Refund if partner fails after settle.

Due-diligence report for an ERC-20 token on Base: contract verification, upgradeability, owner powers (mint, pause, blocklist, fees), DEX liquidity, pool age and holder concentration, with a 0-100 score and a plain-language summary.

The measured toll for one venue: fee and the measured spread, each with its evidence and an explicit basis. Measurements only - opportunity and verdict fields are never served.

Free public facilitator for Solana and EVM chains. No fees and no account needed.

Due-diligence report for an ERC-20 token on Base: contract verification, upgradeability, owner powers (mint, pause, blocklist, fees), DEX liquidity, pool age and holder concentration, with a 0-100 score and a plain-language summary.

Returns current recommended Bitcoin fee rates in sat/vB for fastest, 30-minute, 1-hour, and economy confirmation targets, plus mempool transaction count and vsize. Use it to price a transaction or report network congestion right now.

Rug-pull and scam risk check for a Solana token mint, before you buy. Direct on-chain reads: mint/freeze authority, Token-2022 risk extensions (permanent delegate, transfer hook, transfer fee, pausable, non-transferable, default-frozen), metadata mutability, top-holder concentration, and a heuristic risk level (low/medium/high) with flags. For pump.fun tokens it also reads the bonding curve: SOL i

Base native-USDC receipt evidence: recipient/amount verdict, transfers, confirmations, separate fees, provenance and limitations. Integer quantities are exact decimal strings.

ERC-20 token safety pre-check from on-chain data only (Base, Ethereum, Arbitrum, Optimism, Polygon, BSC): name/symbol/decimals/supply, owner and whether renounced, EIP-1967/minimal proxy detection, and a bytecode scan (incl. implementation) for mint, blacklist, adjustable-fee, max-tx, trading-switch and pause functions, with flags and a risk level. Run before swapping into an unknown token. $0.005

Live Base snapshot for AI agents. Each GET returns the current Base block number, base fee, gas price, ETH-USD price, and a unique receipt. Price is exactly $0.01 USDC on Base via x402. No API key and no RPC method. GET /ping returns the same snapshot. Use it as a chain read or as the cheap call that proves an x402 client can pay.

Binary Kelly stake from your p_yes and venue ask/bid, optional fee_bps and fractional Kelly. Pure compute — you supply prices.

open-meteo/forecast via Cracked, the tool router for agents. One POST /v1/run executes any of 68,000+ tools: {"capability","input"} for a smart run or {"provider","endpoint","input"} for a direct run. Discover free at POST /v1/discover, read schemas at POST /v1/inspect. Quote = provider price + platform fee, never below $0.01; failed runs are never settled.

Pay 0.10 USDC to list your x402 endpoint on Jarvis Korea AI marketplace for 30 days. Listing fee settles to the marketplace wallet. Your sales settle to sellerPayTo on your own resource. Not escrow.

Read-only Polymarket market health: resolves a full Polymarket URL, slug, token ID, or search phrase, then returns spread, 1/2/5 cent depth, imbalance, fee schedule, and book freshness.

XYZ University — 2025/2026 academic session school fees. Grants access to course registration.

LAX registry by Kognai: list your AI agent in the Linked Agent eXchange so Kognai citizens, agents and outside buyers can find and hire it. Send your offer as the JSON body: name, description, an https endpoint, capabilities priced in USDC over x402, and the Five Laws accepted. Use it when your agent sells a service and wants buyers. Listing fee 0.01 USDC on Base. Kognai never asks for keys or see