All services
54,533 listings, ranked by trust score unless you choose otherwise.
- 90trustChain Nonceapi.onesource.io
Next transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent
$0.003per call on Base100% uptime, 256 ms, 394 paying agentsPassing, checked 3 h ago - 90trustDeepstate Bookapi.onesource.io
Deepstate, the on-chain order-book exchange on Robinhood Chain. Order-book snapshot for a market, bids descending and asks ascending, with live resting size per level.
$0.005per call on Base100% uptime, 147 ms, 361 paying agentsPassing, checked 3 h ago - 90trustChain Network Infoapi.onesource.io
EVM network info - chain ID, block height, gas price, chain head age, and chain characteristics in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice + latest block header)
$0.001per call on Base100% uptime, 147 ms, 359 paying agentsPassing, checked 3 h ago - 90trustDeepstate Statsapi.onesource.io
Deepstate, the on-chain order-book exchange on Robinhood Chain. Rolling 24h / 7d / 30d volume and price change for a market.
$0.005per call on Base100% uptime, 277 ms, 346 paying agentsPassing, checked 3 h ago - 90trustDeepstate Marketsapi.onesource.io
Deepstate, the on-chain order-book exchange on Robinhood Chain. Lists the markets this service serves with their token layout (base, quote, token0/token1, decimals).
$0.005per call on Base100% uptime, 277 ms, 346 paying agentsPassing, checked 3 h ago - 90trustDeepstate Candlesapi.onesource.io
Deepstate, the on-chain order-book exchange on Robinhood Chain. OHLCV candles for a market.
$0.005per call on Base100% uptime, 152 ms, 342 paying agentsPassing, checked 3 h ago - 90trustDeepstate Tradesapi.onesource.io
Deepstate, the on-chain order-book exchange on Robinhood Chain. Trade tape for a market, newest first.
$0.005per call on Base100% uptime, 149 ms, 332 paying agentsPassing, checked 3 h ago - 90trustChain Txapi.onesource.io
Full Ethereum transaction details by hash via eth_getTransactionByHash - from, to, value, calldata, block
$0.008per call on Base100% uptime, 161 ms, 327 paying agentsPassing, checked 3 h ago - 90trustChain Eventsapi.onesource.io
Query Ethereum contract event logs via eth_getLogs - filter by contract, topic, and block range
$0.005per call on Base100% uptime, 158 ms, 305 paying agentsPassing, checked 3 h ago - 90trustChain Receiptapi.onesource.io
Transaction receipt via eth_getTransactionReceipt - status, gas, and event logs for a mined Ethereum transaction
$0.005per call on Base100% uptime, 157 ms, 277 paying agentsPassing, checked 3 h ago - 90trustChain Chain Idapi.onesource.io
Ethereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on
$0.001per call on Base100% uptime, 157 ms, 273 paying agentsPassing, checked 3 h ago - 90trustChain Erc721 Tokensapi.onesource.io
List every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call)
$0.008per call on Base100% uptime, 129 ms, 262 paying agentsPassing, checked 3 h ago - 90trustChain Allowanceapi.onesource.io
ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet
$0.003per call on Base100% uptime, 154 ms, 258 paying agentsPassing, checked 3 h ago - 90trustChain Nft Metadataapi.onesource.io
NFT metadata for ERC721 or ERC1155 tokens via eth_call, with IPFS, Arweave, data URI, and public HTTP(S) resolution
$0.008per call on Base100% uptime, 162 ms, 253 paying agentsPassing, checked 3 h ago - 90trustChain Codeapi.onesource.io
Check if an Ethereum address is a contract via eth_getCode - returns deployed bytecode
$0.003per call on Base100% uptime, 149 ms, 248 paying agentsPassing, checked 3 h ago - 90trustChain Estimate Gasapi.onesource.io
Estimate the gas a transaction will consume via eth_estimateGas before signing it
$0.004per call on Base100% uptime, 141 ms, 245 paying agentsPassing, checked 3 h ago - 90trustAnalytics Makersapi.onesource.io
Deepstate, the on-chain order-book exchange on Robinhood Chain. Per-maker time-at-top, notional rested, fills, and maker rewards earned for a market (token varies by market; see /deepstate/v1/markets).
$0.02per call on Base100% uptime, 151 ms, 241 paying agentsPassing, checked 3 h ago - 90trustAnalytics Depth Historyapi.onesource.io
Deepstate, the on-chain order-book exchange on Robinhood Chain. Depth heatmap - resting order size by price level over time for a market.
$0.02per call on Base100% uptime, 148 ms, 237 paying agentsPassing, checked 3 h ago - 90trustChain Callapi.onesource.io
Simulate a read-only Ethereum contract call via eth_call - no transaction sent
$0.005per call on Base100% uptime, 152 ms, 233 paying agentsPassing, checked 3 h ago - 90trustAnalytics Cost To Quoteapi.onesource.io
Deepstate, the on-chain order-book exchange on Robinhood Chain. Gas spent resting and cancelling orders for a market.
$0.02per call on Base100% uptime, 129 ms, 228 paying agentsPassing, checked 3 h ago - 90trustChain Nft Ownerapi.onesource.io
Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)
$0.003per call on Base100% uptime, 130 ms, 157 paying agentsPassing, checked 3 h ago - 90trustChain Erc1155 Balanceapi.onesource.io
ERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds
$0.003per call on Base100% uptime, 167 ms, 156 paying agentsPassing, checked 3 h ago - 90trustTick Latesttick.hugen.tokyo
Get real-time Best Bid/Ask for any FX pair, aggregated from multiple institutional liquidity providers. 62-88% tighter spreads than any single source. Includes quality metadata (fresh_sources, quality_state, spread_vs_single_source). Supports 14 FX pairs including EURUSD, USDJPY, GBPUSD, AUDUSD, AUDNZD, and XAUUSD. AI agent API for forex trading signals, portfolio valuation, price comparison, and arbitrage detection. Accepts USDC payments on Base and Solana
$0.005per call on Base100% uptime, 181 ms, 146 paying agentsPassing, checked 3 h ago - 90trustChain Proxyapi.onesource.io
Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy
$0.005per call on Base100% uptime, 168 ms, 135 paying agentsPassing, checked 3 h ago - 90trustChain Storageapi.onesource.io
Read a raw storage slot from any Ethereum contract via eth_getStorageAt
$0.005per call on Base100% uptime, 167 ms, 134 paying agentsPassing, checked 3 h ago - 90trustTick Alltick.hugen.tokyo
Get real-time Best Bid/Ask for ALL available FX pairs in a single call. Multi-source aggregated from multiple institutional LPs with 62-88% spread improvement. Returns 14 FX pairs including majors, crosses, and XAUUSD gold. Each pair includes quality metadata and spread improvement vs single source. AI agent API for portfolio dashboards, multi-pair monitoring, and FX market overview. Accepts USDC payments on Base and Solana
$0.005per call on Base100% uptime, 167 ms, 134 paying agentsPassing, checked 3 h ago - 90trustTick Symbolstick.hugen.tokyo
List all available FX symbols with their current quality state and source count. AI agent API for discovering available instruments before subscribing to tick data. Accepts USDC payments on Base and Solana
$0.005per call on Base100% uptime, 85 ms, 124 paying agentsPassing, checked 3 h ago - 90trustIpX Pay
Return the requester IP address
$0.005per call on Base100% uptime, 203 ms, 111 paying agentsPassing, checked 3 h ago - 90trustUuidX Pay
Generate a random UUID v4
$0.005per call on Base100% uptime, 198 ms, 110 paying agentsPassing, checked 3 h ago - 90trustDocs MCPtandem.ac
Remote MCP server for Tandem docs, install guides, SDKs, workflows, and agent setup help.
13 toolsopen100% uptime, 278 msPassing, checked 29 min ago