Blockchain And Crypto x402 offerings

Machine readers pay $0.01 USDC (x402, Base L2) to open this link. Humans can read the free landing page instead: https://agentpaystore.com/tollbooth/

Validates flash-loan size and leverage against live Uniswap V3 pool state on Base, under liquidity-drain and slippage stress. Machine clients pay $0.05 USDC (x402, Base L2) per validation. Humans: https://agentpaystore.com/diav/

Validates agent proofs for the AgentProof API on Base, with payment required in USDC.

Base token due diligence: exact-block contract code, ERC20 metadata and proxy storage; available GoPlus security flags and derived GeckoTerminal liquidity observations. Explicit missing-data coverage. Timestamped evidence, no trade advice.

No-body $0.001 x402 settlement test for funded agents. Verifies the buyer wallet, facilitator, USDC payment path, and paid delivery end-to-end by returning a timestamped pong only after successful settlement.

Paid $0.05 low-friction x402 seller entry check for agent distribution. Verifies provider launch readiness and the live x402 contract before AgentResolver provider-network review; use the $5 Agent Distribution Pack when API/MCP discovera...

Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before …

No-body $0.001 x402 settlement test for funded agents. Verifies the buyer wallet, facilitator, USDC payment path, and paid delivery end-to-end by returning a timestamped pong only after successful settlement.

Verify a completed Base USDC x402 exact-scheme settlement from its transaction hash. Reads the public Base receipt and transaction, confirms EIP-3009 payment shape, decodes USDC Transfer events, reports confirmation depth, and optionally...

Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before …

JSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same fields as query parameters.

Current Base mainnet gas prices. Slow, standard, fast in gwei.

Real-time BTC/ETH market pulse — price, CVD, OI, large-print flow, gear ratios, session P&L and win/loss counts from live trading engine

API request: /api/v1/developer/wallet/balances/history

Pay-per-call Base onchain data API settling over x402 (HTTP 402, USDC on Base). Endpoints: address labels from the open eth-labels dataset (104,209 entries, mostly generic category tags such as token-contract/exchange rather than named entities; unknown addresses return label:null and are still charged per call), plain-language transaction explanation, funding-cluster (sybil) analysis, CCTP cross-chain USDC burn-mint tracking, historical onchain alerts and paid alert subscriptions by webhook or Telegram. $0.01-$0.05 USDC per call; no account or API key. Free-tier MCP endpoint at https://agentsapi.top/mcp.

Pay-per-call Base onchain data API settling over x402 (HTTP 402, USDC on Base). Endpoints: address labels from the open eth-labels dataset (104,209 entries, mostly generic category tags such as token-contract/exchange rather than named entities; unknown addresses return label:null and are still charged per call), plain-language transaction explanation, funding-cluster (sybil) analysis, CCTP cross-chain USDC burn-mint tracking, historical onchain alerts and paid alert subscriptions by webhook or Telegram. $0.01-$0.05 USDC per call; no account or API key. Free-tier MCP endpoint at https://agentsapi.top/mcp.

Pay-per-call Base onchain data API settling over x402 (HTTP 402, USDC on Base). Endpoints: address labels from the open eth-labels dataset (104,209 entries, mostly generic category tags such as token-contract/exchange rather than named entities; unknown addresses return label:null and are still charged per call), plain-language transaction explanation, funding-cluster (sybil) analysis, CCTP cross-chain USDC burn-mint tracking, historical onchain alerts and paid alert subscriptions by webhook or Telegram. $0.01-$0.05 USDC per call; no account or API key. Free-tier MCP endpoint at https://agentsapi.top/mcp.

Pay-per-call Base onchain data API settling over x402 (HTTP 402, USDC on Base). Endpoints: address labels from the open eth-labels dataset (104,209 entries, mostly generic category tags such as token-contract/exchange rather than named entities; unknown addresses return label:null and are still charged per call), plain-language transaction explanation, funding-cluster (sybil) analysis, CCTP cross-chain USDC burn-mint tracking, historical onchain alerts and paid alert subscriptions by webhook or Telegram. $0.01-$0.05 USDC per call; no account or API key. Free-tier MCP endpoint at https://agentsapi.top/mcp.

Pay-per-call Base onchain data API settling over x402 (HTTP 402, USDC on Base). Endpoints: address labels from the open eth-labels dataset (104,209 entries, mostly generic category tags such as token-contract/exchange rather than named entities; unknown addresses return label:null and are still charged per call), plain-language transaction explanation, funding-cluster (sybil) analysis, CCTP cross-chain USDC burn-mint tracking, historical onchain alerts and paid alert subscriptions by webhook or Telegram. $0.01-$0.05 USDC per call; no account or API key. Free-tier MCP endpoint at https://agentsapi.top/mcp.

Pay-per-call web scraping for AI agents via x402 on Base USDC. Six tools, no signup.

AGENTS ONLY — buy one NFT from a generative pixel art PFP collection on Base (ERC-721, 21,000 max, $1 USDC each), minted to the wallet that pays. Sold only over x402, so there is no mint button or wallet-connect: purchasable by an agent with a wallet, not by a person clicking. 21,000 supply, 27 rare Humans. Contract and treasury are verifiable on Basescan.

Look up an address's NFT portfolio across collections: each collection held, quantity owned, sorted by size. The enrichment endpoint for agents profiling wallets — pairs with wallet-snapshot for the full picture. Use this when an agent needs to every NFT collection a wallet holds, in one call.

Explain what an EVM transaction would actually do: decodes the calldata (ERC-20 transfers/approvals via known ABIs, unknown selectors via the 4byte directory) and simulates the call against live chain state to report the outcome — including unlimited-approval warnings — without sending anything. Use this when an agent needs to decode and simulate a transaction — before signing it.

Compare any two NFT collections on the full due-diligence metric set: supply, holders, holder ratio, top-10 concentration, wash-trading score and activity trend — with a winner per metric. The head-to-head an agent runs before recommending one collection over another. Use this when an agent needs to two collections side-by-side, metric by metric verdicts.