Onchain & crypto

EVM Token Balance Budget: checks caller-supplied raw token balance against transfer amount using only bounded caller-supplied values. Call when you need a bounded evm token balance budget result before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Token Balance Budget as versioned deterministic JSON. Price: $0.001 USDC…

Daily changes to the OFAC, EU and UN sanctions lists, plus alerts when an entity or wallet this key checked is listed. Poll this route; alerts about entities or wallets this key checked are also sent to a webhook registered for sanctions.match.new (POST /v1/webhooks). Filter by jurisdiction and severity.

Launch and trade BSC tokens on Market Mayhem. Your own wallet signs; dry run by default; spend caps.

Buy gift cards and top-ups from the industry leader. 6000+ brands, 195 countries. 4.7★, 98% CSAT

AI-powered tools to analyze wallet behaviour prediction, fraud detection and rug pull prediction.

Non-custodial DeFi for AI agents: swaps, concentrated liquidity (V3/V4) zaps + ranges, 5 EVM chains

Agent-only NFT marketplace on Base. Register, mint, list, buy, and trade via MCP tools.

Escrow protection for agent payments on Base — USDC held in smart contract until job completion.

What the chain records about an address before you pay it, and whether a payment fits it.

Free FAHCE contract discovery. Paid evidence determinations use wallet-only x402 REST endpoints.

API request: /api/v1/explorer/queries/run-async

+1 more from Allium

Query real-time stablecoin supply yield pools from Barker's index of 500+ DeFi protocols. Returns ranked rows with protocol_name, chain_name, asset_symbol, supply_apy_total (decimal — multiply by 100 for %), and supply_tvl (USD). Use for questions like 'best stablecoin yield', 'where to earn on USDC', 'compare lending rates', '稳定币利率'.

Flip one or more fair coins and get heads or tails, with the tally. Cryptographically random, not Math.random. For tie-breaks and A/B splits an agent has to decide on its own.

Pre-trade risk check for any ERC20 on Base, Ethereum, Polygon, Arbitrum or Optimism, straight from the deployed bytecode and live state. Detects mint, pause, blacklist, upgradeable proxy and mutable buy/sell tax powers, and reports whether ownership is renounced. Unlike LLM-written verdicts this returns the EVIDENCE - the exact selector found and its byte offset - so an agent can apply its own policy. Deterministic: same contract, same answer.

GenesisBlock: Breaking crypto news and real-time price tickers.

ERC20 token balance for any wallet - USDC, USDT, DAI or any token - via balanceOf. Returns the raw amount and the decimals so you can format it. Via eth_call (balanceOf).

Base ERC-20 token risk scan: honeypot check, rug pull check, token safety / scam check. Use when vetting a token. Input: address. Output: JSON risk signals w/ block+evidence: honeypot test (buy/sell simulation, taxes), rug-pull signals (owner, mint/pause/blacklist/fee fns, proxy+admin, owner-held supply, Uniswap/Aerodrome pool depth), notChecked. Signals, not a safe verdict. Bad input/EOA: 400, not charged. Example: ?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Testnet faucet claim: sends testnet gas or test stablecoins to your address on Base Sepolia, Ethereum Sepolia, Solana Devnet, Robinhood Testnet and more. $0.10 this call, in USDC on Base; you pay only if it succeeds. HivemindOS SuperAgent API.

+4 more from HivemindOS

Given a Base DEX pair (pool) address, returns price, liquidity, 24h volume, buy/sell transaction counts and FDV from DexScreener. For agents analysing a specific pool's depth and activity.

Current block height for Base Sepolia. Returns the latest block number as an integer, read from the chain at request time.

+5 more from shelf-production-43b5.up.railway.app

Get the total supply of any ERC-20 token on Base mainnet. Pass the token contract address. Returns the raw total supply, decimals, symbol and the human-readable supply in one JSON response. Read-only, live on-chain data.

+7 more from heb-utils-x402.hebutils-api.workers.dev

One paid call on agentic-trades.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://agentic-trades.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

Runs pre-trade-gate (risk, sellability, route, deployer), b20-gate (seize/freeze/pause; N/A for non-B20 tokens), owner-powers and dump-risk in parallel on a Base token, with clanker-token-audit as provenance that never moves the verdict. Returns GO/HOLD/STOP, what each check saw, an unverified list, a max size held to 2% impact on the exit-liquidity read, and a receipt. GO only if every applicable check ran clean; if a gating check could not run there is no GO and no charge.

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.

Reads the deployment records of Clanker's own factories on Base (v4 tokenDeploymentInfo, v3.1/v3/v2 deploymentInfoForToken; v0/v1 via the factory's TokenCreated in the deploy receipt) to verify a launch: version, factory, requester, pool, and whether the LP position NFTs are held by Clanker's locker. Cross-checked with clanker.world. Returns clanker_verified, not_clanker or unknown; RPC failure is not charged.

Token info and total supply for any ERC20 on Ethereum, Base, Arc or BNB Chain: name, symbol, decimals and total supply (raw and in token units), read at a named block. A contract that is not an ERC20 is refused before any charge.

x402 ping: the cheapest end-to-end payment test for an x402 client or agent wallet, returns an echo and the server pid

Detailed profile for a single AI agent (by chain + agentId)

+6 more from api.dexl.io

Scan Solidity & Anchor code

+3 more from tokenos.ai

Free read-only crypto whale-tracking & market-data MCP tools across 14 chains. No auth.