{"uid":"cap_KU4AaLO1jBEGs-kl0Eg6z","slug":"json-lines-stringify-4dd537cc","name":"JSON Lines Stringify","description":"JSON Lines Stringify: JSON Lines Stringify serializes bounded JSON values as compact newline-delimited JSON from bounded caller-supplied values without an external provider. Call JSON Lines Stringify before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for JSON Lines Stringify as versioned deterministic JSON. Price: $0.001 USDC…","url":"https://api.delx.ai/api/v1/x402/json-lines-stringify?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"items":{"type":"array","items":{"type":"object","maxProperties":128,"additionalProperties":true},"maxItems":256,"description":"Items supplied to JSON Lines Stringify; used only for this bounded calculation and processed in memory without retention."}}},"responseSchema":{"type":"json","example":{"result":{"text":"{\"id\":1}\n{\"id\":2}","line_count":2},"schema":"delx/util-json-lines-stringify/v1","status":"pass","evidence":{"retained":false,"input_sha256":"0e0bc9cb6b5f1b41ed89071cc8222f2bbc6b2c97af66c03cd0d24ac5102d86af","external_calls":0},"operation":"data_batch:json_lines_stringify"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_G3mxW540gSZs03X_KdViA","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Serializes an array of JSON objects into compact newline-delimited JSON Lines (JSONL) format with counts and a versioned result contract","exampleAgentPrompt":"Take these structured records and serialize them as compact JSON Lines — one JSON object per line — so I can hand the result off to a downstream tool that only accepts JSONL format.","exampleUseCases":[{"title":"Pipeline ingestion pre-processing","prompt":"I have a batch of up to 200 order records as JSON objects that I need to convert to JSON Lines format before sending them to our data pipeline — can you stringify them into JSONL?"},{"title":"Agent handoff to strict contract tool","prompt":"Before passing this structured batch plan to the next tool, serialize it as newline-delimited JSON Lines so it meets the stricter input contract on the other end."},{"title":"Log export formatting","prompt":"I need to convert this array of log event objects into JSONL format — one compact JSON object per line — so the log ingestion service can process them correctly."}],"resultDescription":"Returns a versioned deterministic JSON result containing the JSONL-formatted string (each input object serialized on its own line), a count of lines produced, normalized values, and a versioned result contract identifier. No data is retained after processing.","failureModes":["Input array exceeds 256 items — request rejected with a bounds error","Individual objects exceed 128 properties — validation error returned","Malformed or non-serializable input values cause serialization failure","Empty items array returns zero-line output with count of 0","Network or payment processing failure returns 402 or 5xx error"],"whenToPreferThis":"Choose this endpoint when an agent needs a deterministic, bounded, stateless JSONL serialization with a versioned result contract and line-count metadata — particularly before handing structured data to a downstream tool that enforces a strict JSONL input contract. Prefer over ad-hoc client-side serialization when auditability, count verification, or a standardized result envelope matters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T18:54:34.745Z","isFirstParty":false,"canonicalSlug":"json-lines-stringify-4dd537cc"}