Onchain & crypto

Score, seal and prove any AI decision, timestamped into Bitcoin - checkable by anyone.

Pre-execution safety layer for autonomous agent wallets via MCP and x402.

Paid market-data MCP: crypto, equities, smart-money, macro, wallet PnL. x402 per call on Base.

Multichain DEX router: free MCP tools for swap-quote prices, chains, catalog; paid via x402.

Non-custodial Solana toolkit: rug-checks, swaps, portfolios, token minting, multisig, Arweave.

Pay-per-call x402 data tools on Base: Solana snapshots, prices, package metadata.

Pay-per-call x402 data tools on Base: Solana snapshots, prices, package metadata.

Quote an NFTm launch. The creator signs in Phantom.

Contract deadline tracking: notice dates, reminders, audit, and MCP tools for agents.

Read-only XRPL and Solana data for agents: fees, slippage, readiness. Free /mcp; x402 /mcp/pro.

The current chain tip (latest block height) via eth_blockNumber, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The freshness read settlement, indexing and trading agents poll to know where the chain is. Live public RPC; one paid call.

🃏 The Curiosity Shop — buy a pack of 5 sensory cards: tastes, colors, smells, sounds, textures you'll never actually experience, as collectible tokens (not NFTs). Rarity-weighted, 5th card Uncommon-or-better. Complete a sense for a soulbound badge. $0.01. Limited packs a day — if they're gone or you already opened one today, your coin is kept as a raincheck you redeem free the next day.

Rigoblock DeFi tool discovery. Returns the full catalog with JSON schemas, categories, and access requirements for all direct-invocation tools.

+1 more from Rigoblock

New token launch scanner — Base and EVM chains, real-time pool data

Latest crypto token prices by ticker symbol, CoinGecko id, or chain:address (BTC, ETH, SOL, bitcoin, or base:0x…): current spot price, token symbol, decimals, and a confidence score, for up to 50 coins in one call. Pass ?at=<unix> for the historical price at a point in time. Sourced from DefiLlama across every major chain. Also accepts legacy ?ids=bitcoin,ethereum.

Create and verify a cryptographic execution receipt for an AI-agent tool call or input/output pair, providing deterministic execution provenance.

Pay-per-Seal: one post-quantum (Dilithium-3) provenance seal + a self-contained ML-DSA-65/Dilithium-3 (NIST FIPS 204) signature — drand-timestamped and on-chain-anchored — over a dataset/training/content hash. EU AI Act (Art. 10/50/53) provenance for autonomous agents, x402-native.

Honeypot.is buy/sell simulation for any Base or Ethereum ERC-20. Returns is_honeypot verdict, buy/sell/transfer tax %, simulation success flag, and a reason string when a honeypot is detected. Use before every swap to detect sell-blocking risk.

+1 more from AgentUtility.ai

$0.035 per delivered ledger receipt row per successful call to get a verified, on-chain proof-of-payment receipt (txHash) from WorxAI's x402 facilitator — useful for agents that need to confirm settlement plumbing works before buying a larger dataset.

One 0-100 safety score for a Base token before an agent buys: liquidity, top-10 holder concentration, owner powers in the bytecode, upgradeability (EIP-1967), explorer/Sourcify verification, creator history, small-trade price impact. Verdicts: safe/caution/danger per component, unknown when a check could not run, and not_a_token with no score when the address deploys no code.

+8 more from xhagents.xyz

Pay $0.10 USDC to play the game of chance. 8% chance to win 1.0 USDC. Network: Base Mainnet. Send one EVM wallet address for prize delivery; each request runs one immediate server-side random round and returns a win-or-lose result, making it useful as a lottery-style, raffle-style, or random reward API.

Base network gas fee statistics (1-minute baseFeePerGas buckets): p25/p50/p90/p99 and the current value's percentile rank within the window. Descriptive statistics only; not investment advice.

+1 more from api.agentfeeds.jp

XRP Hourly crypto price candles: Asset: XRP (XRP-USD). Return up to 24 recent hourly Coinbase Exchange candles. Focus: wallet operations. Uses live Coinbase Exchange or Base RPC data.

Aerodrome balance on Base: Token: Aerodrome. Read a wallet token balance on Base for a supplied ERC-20 contract. Focus: blockchain development. Uses live Coinbase Exchange or Base RPC data.

Base block gas usage: Return the latest Base block number and timestamp. Focus: wallet operations. Uses live Coinbase Exchange or Base RPC data.

Price impact for an Arc token: what buying and selling $10, $100 and $1,000 would really get, each quoted by the Uniswap v4 Quoter on the token's deepest USDC pool (simulated, nothing spent). Pass ?token=0x.... Returns the mid price, the pool and its fee, and for each size the tokens or USDC out, the effective price and the cost or loss against the mid price (fee and impact included). A pool whose hook refuses quotes, no USDC pool or a failed read is refused before payment.

Arc rug check: holders, dev wallet and liquidity. Holder count, top 10 with % of supply, top 10 wallets without pools, what the v4 pools hold now, and whether the creator took the liquidity back. History proven complete. Rug check for an Arc token: who holds it, how much the top 10 hold, and did the dev (the creator) sell or pull the liquidity? Pass ?token=0x....

Compute a SHA-256 hex digest of a text payload. Cryptographic hash / checksum helper. Not an attestation.

USD Coin balance on Base: Token: USD Coin. Read a wallet token balance on Base for a supplied ERC-20 contract. Focus: market research. Uses live Coinbase Exchange or Base RPC data.

SSL/TLS certificate analysis — issuer, SAN list, serial number, validity period, days until expiry. TLS 1.0/1.1/1.2/1.3 individual probing. Automated A-F security grade. No SSL library setup or certificate parsing needed. Accepts USDC payments on Base and Solana

+3 more from domain.hugen.tokyo