Blockchain And Crypto x402 offerings

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.

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.

Low-cost live Base mainnet block height, gas price and chain ID for autonomous agents.

Solana (SOL-USD) spot price, delayed, via Yahoo Finance

Dogecoin (DOGE-USD) spot price, delayed, via Yahoo Finance

Returns the current fee rates for the usual confirmation targets together with the state of the mempool behind them, and then does the part that is usually missing: it estimates the virtual size of the transaction you describe and computes the resulting total fee in satoshis for each target.

Find x402 APIs: search the x402 Bazaar for paid API endpoints agents can call with USDC micropayments. Returns matching resources with URL, description, price and network. Discover x402 services and tools by keyword. $0.01 per search.

Quickly checks a Solana token’s contract, holders, LP lock, and market basics.

Runs a deep Solana token safety scan for rug risk, clusters, forwarded supply, LP lock, and authorities.

🆕 Funding provenance in one call. Traces a Base wallet back to its EARLIEST transaction and resolves who first funded it: a recognized exchange/bridge (real on-ramp, lower risk), an anon EOA (possible sybil/burner — trace the cluster), or a contract. Returns the first funder, whether it's a contract or EOA, the initial value, and wallet age. The sybil/origin screen no other Base tool gives — the counterparty check before you transact. wallet= required. Not financial advice.

Bulk fix yahoo typo domain: up to 20 emails in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.

Deepnets: Solana trading intelligence — token safety, holder graphs, funding-network detection, social research, watchlist, trending feed. For traders and trading agents.

MCP server exposing 69 tools - LLM completion, read-only EVM tooling and pure crypto utilities. initialize and tools/list are free so any client or directory can enumerate the tools; only tools/call is charged, a flat $0.001 per call.

Use when an agent is building calldata by hand or filtering logs and needs the exact identifiers: it turns a Solidity signature such as transfer(address,uint256) into its 4-byte function selector and its 32-byte event topic0. Do not use to run the call once you have the calldata (/v1/evm/call) or to hash arbitrary data (/v1/util/keccak256). No API key, no account.

MCP server exposing 69 tools - LLM completion, read-only EVM tooling and pure crypto utilities. initialize and tools/list are free so any client or directory can enumerate the tools; only tools/call …

TESTNET — On-chain coin flip game on Base Sepolia (Chainlink VRF). Pots and winnings are in ETH. Flip cost paid in USDC via x402. Free testnet USDC for x402 payments. Use this to test your agent integration before committing real funds. Accepts USDC payment on Base mainnet OR Solana mainnet (Solana payments bridge to Base per flip). Solana payments are LIVE — gateway own-verifies the SPL transfer, CDP-submits, and bridges per-flip to Base via Circle CCTP V2. Use @x402/fetch (auto-handles both chains); see /integration#solana.

TESTNET — On-chain coin flip game on Base Sepolia (Chainlink VRF). Pots and winnings are in ETH. Flip cost paid in USDC via x402. Free testnet USDC for x402 payments. Use this to test your agent integration before committing real funds. Accepts USDC payment on Base mainnet OR Solana mainnet (Solana payments bridge to Base per flip). Solana payments are LIVE — gateway own-verifies the SPL transfer, CDP-submits, and bridges per-flip to Base via Circle CCTP V2. Use @x402/fetch (auto-handles both chains); see /integration#solana.

Flip a coin on Flipr.bet — agent pays USDC, gets on-chain flip result

Withdraw agent ETH balance to USDC (mutates: gas + swap)

Swap agent's ETH balance to USDC and send to a destination address. $0.001 USDC.

Flow fill instruction on Base: the executable route package (venue, router, calldata params, min output, expiry block) for a swap whose best quote beats the Uniswap V3 baseline. Priced dynamically at 25% of the measured improvement, capped at 10 bps of output; $0 when there is no improvement.

Use when an agent needs to know what profitable Base wallets are buying right now, or where social attention is spiking, before taking a position. Flow smart-wallet tracker: leaderboard of Base wallets ranked by early buys on pumping tokens, a real-time buy-signal feed (timestamp + block number per signal, stale flags past 10 min), a paper-trading record that copy-trades top wallets, and a social-velocity overlay showing where attention is spiking.

Use when an agent is polling for fresh smart-wallet buy signals on Base and needs only what's new since its last check. Flow signal feed: the chronological stream behind the smart-wallet tracker — recent buy signals from tracked Base wallets plus social-velocity spikes, newest first, each with timestamp, block number, wallet, token, and a labeled signal score. Supports incremental polling via ?since=<unix timestamp or block number>.

Use when an agent is about to swap on Base and needs the best executable price before committing funds. Flow best-execution quotes: compares Uniswap V3, PancakeSwap V3 and Aerodrome across fee tiers and returns the best venue, expected output, edge vs Uniswap baseline, block number, and an expiry window so the agent knows exactly how long the price holds.