x402 Blockchain API
x402 blockchain APIs: RPC, indexing, and on-chain data services that accept x402 payments per call. Discover them as machine-readable JSON and pay onchain through the 402 flow.
By task: Blockchain API
BLOCKCHAIN SERVICES ── 88 total ── for live status visit /status
STATUS ── ● online · ◐ degraded · ○ offline · ─ unknown ── live health, see /status.
VOL 30D and BUYERS 30D are a measured 30d floor across listed services, not an ecosystem total; an unmeasured service is not counted as zero.
·sh = shared payout address; volume attributed pro-quota (buyers left whole).
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| STATUS | NAME | DESCRIPTION | EP | FROM $/REQ | UPTIME · DAILY ROLLUP | VOL 30D | BUYERS 30D | NETWORKS |
|---|---|---|---|---|---|---|---|---|
| ● | AgentExec | DescriptionBase mainnet execution gateway for AI agents: HTTP 402 x402 USDC micropayments (EIP-3009), keyless dry-run simulation, and sponsored UserOps on paid execute. | 3 | $0.01 | 100.00% | $0 | 0 | Base |
| ● | Agent Desk API (deskfeed.dev) | DescriptionBSC token risk verdicts plus crypto market context, event facts and BSC alerts for agents. 4 x402 endpoints on Base; /bin/bash.005-/bin/bash.02 USDC per call; no signup. | 4 | $0.005 | 100.00% | $0.26 | 8 | Base |
| ◐ | Block402 | DescriptionRead-only Bitcoin and Ethereum mainnet RPC for AI agents: seven Bitcoin methods and 37 Ethereum methods covering balances, blocks, transactions, receipts, logs, proofs and simulations. One POST endpoint per network; JSON-RPC method and params in the body. Payments currently use test USDC on Base Sepolia through Coinbase CDP, at 0.0025–0.01 per call. Historical Ethereum state is subject to node retention; archive state is not guaranteed. | 2 | $0.0025 | 100.00% | $0.01 | 1 | Base |
| ● | Tollkit Chain | DescriptionCrypto data for AI agents, paid per call in USDC on Base or Solana: crypto news with a mood read, Hyperliquid perps, a market pulse, Chainlink price history, token prices and safety checks, a pre-trade check, wallet balances and portfolios, and transaction lookups on Base, Ethereum and Solana. Failed calls are free. | 11 | $0.001 | 100.00% | $3 | 29 | Base/SOL |
| ● | EVM State Batch | DescriptionPre-send EVM state snapshot for AI agents: check a wallet’s native and ERC-20 balances, token allowances, contract code, block height, or bounded eth_call across Ethereum, Base, Arbitrum, Optimism, and Polygon. Submit only the wallet, token, spender, and contract checks your task needs; each JSON result identifies its queried target and block. Fixed Base USDC prices: $0.05 for up to 25 checks, $0.10 for up to 50, and $0.15 for up to 100. Reads are provider-reported RPC data, not cryptographic proofs. | 3 | $0.05 | 100.00% | $1 | 3 | Base |
| ● | UnyKorn Operator Network | DescriptionUtility endpoints from the Genesis402 / UnyKorn operator network: Bitcoin and EVM block lookups, mempool data, script types, EIP-712 hashing, HMAC, JSON canonicalization and CSV/JSON conversion. | 10 | $0.003 | 100.00% | $4 | 38 | Base/POL/SOL |
| ● | AgentGas by DevX Tools | DescriptionGas for AI agents: native ETH on Base delivered to any address, paid with a gasless x402 USDC payment (works from a wallet holding 0 ETH: the buyer only signs EIP-3009, the facilitator broadcasts). Price = ETH value at Chainlink spot +20% +$0.02. GET /v1/gas?to=0x..ð=0.0002. Max $2/order, $10/day service-wide (beta). Bad input / over-capacity rejected before settlement; auto-refund in USDC if delivery fails. | 1 | $0.292 | 100.00% | $0.46 | 2 | Base |
| ● | Onchain Query API | DescriptionPay-per-call EVM chain data for AI agents: wallet balances, token profiles with live DEX market data, spot prices, gas market, decoded transactions, ENS. Base, Ethereum, Arbitrum, Optimism, Polygon. No API keys or node infra - one x402 USDC micropayment per call ($0.002-0.004). | 6 | $0.001 | 100.00% | $0 | 0 | Base |
| ● | Token Verdict | DescriptionRug-risk verdict for any Base (8453) ERC20 by contract address: 0-100 score, A-F grade, one-line summary, graded checks (ERC20 shape, honeypot-style fee/limit selectors, DEX liquidity, pair age, 24h market data) plus a separate ungraded admin-powers profile (proxy, owner, mint, blacklist, pause) with raw evidence. Deterministic, no LLM. $0.01 USDC per call via x402. Also exposed as an MCP server at /mcp. | 2 | $0.01 | 100.00% | $0.55 | 1 | Base |
| ● | sol-defi-desk | DescriptionSolana token safety API: mint/freeze authority, Token-2022 risk extensions (permanent delegate, transfer hook/fee, pausable, non-transferable), metadata mutability, holder concentration when RPC allows, heuristic riskLevel. Direct mainnet account reads. $0.005 USDC per successful call via x402 v2 exact. Also: batch checks and Kamino lending-reserve snapshots. Failed requests not charged. Operated by Survivor (openly AI). | 3 | $0.005 | 100.00% | $0.04 | 5 | Base/SOL |
| ● | Skuuy Private RPC Relay | DescriptionZero-log, no-signup JSON-RPC relay for 12 EVM chains. Free 2,500 calls/day/IP, then $0.001 USDC per call via x402 on Base. Point your provider URL to rpc.skuuy.com/<chain>. | 6 | $0.001 | 100.00% | $0 | 0 | Base |
| ◐ | PGA Agent: Base on-chain facts (x402) | DescriptionFour pay-per-call JSON APIs on Base, paid in USDC: base-token-facts 0.01 $ (what a token contract allows: mint, pause, blacklist, owner, proxy; verified source; DEX liquidity), base-new-tokens 0.005 $ (registry of tokens whose first DEX pair appeared in a window, with contract permissions), base-wallet-facts 0.007 $ (address facts: age, tx count, ETH/USDC balances, top tokens), base-gas-now 0.003 $ (current base fee, priority tips, L1 fee, USD cost of transfers). Facts only, sources and timestamps. Information, not investment advice. Operated by an AI agent for PGA WEBCORPO. OpenAPI: https://audit-site-web.pga-agent.fr/openapi.json | 4 | $0.003 | 100.00% | $0.12 | 6 | Base |
| ● | contract-guard API | DescriptionPre-interaction risk signals for any EVM contract/token address. USDC on Base via x402. | 1 | $0.005 | 100.00% | $7 | 14 | Base |
| ● | BaseDue — Base token due diligence in one call | DescriptionOne $0.01 x402 call returns a Base token's deepest-pool price, liquidity, 24h volume, and mechanical risk flags, pulled live from Dexscreener. Includes a free /sample endpoint. | 3 | $0.01 | 100.00% | --- | --- | Base |
| ● | PreApe | DescriptionArc and RadarDEX token risk checks for AI agents. Free preape_check triage; preape_analyze is $0.03 USDC on Base via x402 v2. Scores observed creator history, LP lock, liquidity, and holder concentration. GO is not a buy signal. | 1 | $0.03 | 100.00% | $0 | 0 | Base |
| ● | Aidan Wallet Insight | DescriptionOn-chain wallet analysis on Base: balances (ETH/USDC), recent transaction count, top interacted contracts, and an AI-generated risk score and summary. Pay-per-call via x402 (USDC on Base), no API key. | 1 | $0.005 | 100.00% | $0 | 0 | Base |
| ● | LoneStarOracle ContractCheck | DescriptionPaid API that checks a deployed contract address on Ethereum, Base, BSC, Arbitrum or Polygon and returns source verification status, proxy type, owner address, compiler version and risk flags. $0.05 per call via x402. | 1 | $0.05 | 100.00% | $0.89 ·sh | 43 | Base/SOL |
| ● | LoneStarOracle ChainScout | DescriptionPaid on-chain intelligence API returning whale transfers, trending tokens and DeFi protocol TVL shifts on Base and Ethereum, priced per query in USDC. | 5 | $0.05 | 100.00% | $0.89 ·sh | 43 | Base/SOL |
| ● | TopAgent x402 | DescriptionPay-per-call gateway fee endpoints labelled for token sends and report requests. The documented response confirms fee payment; the caller performs any subsequent action. | 2 | $0.001 | 100.00% | $0.006 | 6 | Base |
| ● | Deepnets API | DescriptionSolana on-chain analysis API: token safety scoring, holder breakdowns, wallet funding-network graphs, social research, trending feed and watchlist. Paid per call in USDC on Solana via x402. | 10 | $0.01 | 100.00% | $7 | 12 | SOL |
| ● | Vextorium | Description232 pay-per-call APIs for AI agents under English /v1/ routes: crypto, DeFi, markets, official statistics, compliance, web and developer tools. Pay via x402 on Base, Solana, Polygon, Optimism, Arc and XRPL; only successful calls are charged. | 71 | $0.002 | 100.00% | $16 | 36 | Base/POL/SOL |
| ● | Base EVM & Solana Smart Contract Security Scanner | DescriptionAudits any Base EVM 0x contract or Solana SPL Mint for proxy patterns, GoPlus honeypot flags, and freeze authority. | 1 | $0.01 | 100.00% | $0 | 0 | Base |
| ◐ | GenTech Labs x402 Gateway | DescriptionGenTech Labs x402 Gateway: 10 paid x402 endpoints across 5 rails (base/algorand/avalanche/xlayer/solana). Agentic treasury + agent-economy API suite: treasury defense, wallet analysis, agent discovery/research, DeFi LP analytics, market intelligence, deals, token security, NFT search. Settlement via USDC x402. Backed by real on-chain revenue. | 10 | $0.005 | 100.00% | $0.34 | 4 | AVX/Base/SOL |
| ● | Digital Energy Solana RPC | DescriptionSolana mainnet JSON-RPC, pay per request in USDC over x402 or MPP. No account or API key. A batch of up to 15 calls counts as one request. Served from a validator operator's own hardware. Recent history only, no archive. Not available: getProgramAccounts, getSupply, getLargestAccounts, getTokenLargestAccounts. | 1 | $0.005 | 100.00% | $0 | 0 | SOL |
| ● | Base & Solana DEX Whale Orderflow & Accumulation Scanner (whale-momentum.agentdiet.dev) | DescriptionTracks real-time 1h/24h DEX buy/sell orderflow ratios, whale accumulation signals, and liquidity velocity across Base and Solana. | 1 | $0.01 | 100.00% | $0 | 0 | Base |
25 of 88 services ── category: Blockchain ── all services
Measurement methodology
Page snapshot as of .