{"uid":"cap_qEaWs_qhcVXjLH6PnBF8i","slug":"signalharness-orderbook-depth-4dd83ef0","name":"SignalHarness Orderbook Depth","description":"Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.","url":"https://signalharness.ai/api/agent/services/orderbook_depth/invoke","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"orderbook_depth_request":{"type":"string","maxLength":65536,"minLength":2}}},"responseSchema":{"type":"json","example":{"replay":false,"result":{"warnings":["The order book is caller supplied and may be stale or incomplete."],"service_id":"orderbook_depth","evidence_scope":"caller_supplied_data","orderbook_depth":"{\"ask_depth\":{\"levels\":1,\"notional\":\"303\",\"quantity\":\"3\"},\"best_ask\":\"101\",\"best_bid\":\"99\",\"bid_depth\":{\"levels\":1,\"notional\":\"198\",\"quantity\":\"2\"},\"level_limit\":10}"},"status":"succeeded","receipt":{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","usage":[],"status":"succeeded","network":"eip155:8453","artifacts":[],"endedAtMs":0,"latencyMs":0,"paymentId":"example-payment","receiptId":"example-receipt","requestId":"example-request","serviceId":"orderbook_depth","executionId":"example-execution","startedAtMs":0,"amountAtomic":"10000","resultSha256":"2f888a22a08e204522b8353d3fd26d3fff83a7e6d732802741098d1ec11be9e1","serviceVersion":"1.0.0","settlementReference":"0x0000000000000000000000000000000000000000000000000000000000000000"},"artifacts":[],"requestId":"example-request","executionId":"example-execution"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_pMQFRbbZb_S0dXftEUE-T","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves or analyzes orderbook depth data for a given trading asset or market, returning bid/ask depth information via a paid agent-native API.","exampleAgentPrompt":"Pull the current orderbook depth for BTC/USDC — I need to see the bid and ask walls before placing a large order.","exampleUseCases":[{"title":"Pre-trade liquidity check for large order","prompt":"Before I execute this large ETH buy, can you pull the current orderbook depth so I can see how much sell-side liquidity is available and avoid slippage?"},{"title":"Algorithmic trading bot market analysis","prompt":"My trading bot needs a fresh orderbook depth snapshot for the SOL/USDC pair — fetch it now so it can decide whether to execute the next leg of the strategy."},{"title":"Market maker spread and wall monitoring","prompt":"Check the orderbook depth for USDC/BTC and tell me where the major bid and ask walls are sitting right now — I want to see if there's a thin spot I can exploit."}],"resultDescription":"Returns a JSON object containing the orderbook depth result, any warnings, evidence scope, service ID, and a detailed receipt including payment info, network, latency, execution IDs, and a SHA-256 result hash for verification.","failureModes":["Invalid or malformed orderbook_depth_request string returns an error","Unsupported trading pair or market identifier yields empty or warning-only response","Payment failure (USDC not received) results in 402 response before execution","Rate limiting or service unavailability returns a non-succeeded status","Request string too short (< 2 chars) or too long (> 65536 chars) fails schema validation"],"whenToPreferThis":"Choose this endpoint when you need real-time or near-real-time orderbook depth data for crypto or DeFi markets and are operating in an agent-native, micropayment-enabled (x402/USDC) context. Prefer this over manual exchange API calls when your agent needs a single, standardized interface with verifiable receipts and on-chain payment provenance.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T19:01:50.051Z","isFirstParty":false}