{"uid":"cap_3Cp2cDcfLDM-O1bvSmsWu","slug":"gpt-5-5-json-extraction-tool-8ce79616","name":"GPT-5.5 JSON Extraction Tool","description":"Extract structured JSON from short text according to a caller-provided schema or field list. Useful for agents that need cheap parsing, lead cleanup, invoice notes, support tickets, and lightweight ETL steps. Pay up to $0.003 per request with x402 USDC on Base. Public paid calls are limited to 1500 input characters and 128 output tokens.","url":"https://gpt55.558686.xyz/v1/tools/extract-json","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string","maxLength":700000,"minLength":1},"fields":{"type":"array","items":{"type":"string"}},"schema":{"type":"object","additionalProperties":true},"max_tokens":{"type":"integer","maximum":4096,"minimum":1},"temperature":{"type":"number","maximum":2,"minimum":0}}},"responseSchema":{"type":"json","example":{"text":"{\"field\":\"value\"}"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.00293","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":"$0.00293/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.00293","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.00293","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_6WkeiWXK_d1-WFSe7l4bT","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.00293","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Extracts structured JSON fields from unstructured text using GPT-5.5, paid per-call via x402 USDC on Base with no subscription required.","exampleAgentPrompt":"Extract the fields 'company_name', 'invoice_date', and 'total_amount' as JSON from this text: 'Invoice #4421 from Acme Corp dated March 15 2025 for a total of $1,240.00 due in 30 days.' Keep it under 512 tokens.","exampleUseCases":null,"resultDescription":"Returns a JSON object with the extracted field values parsed from the input text, shaped according to the requested fields or schema. Example: {\"text\": \"{\\\"company_name\\\": \\\"Acme Corp\\\", \\\"invoice_date\\\": \\\"March 15 2025\\\", \\\"total_amount\\\": \\\"$1,240.00\\\"}\"}","failureModes":["Text too long (exceeds 700,000 char limit) — 400 bad request","Fields or schema not recognized in input text — returns null or empty values for those keys","Payment not settled via x402 USDC on Base — 402 Payment Required","Temperature or max_tokens out of allowed range — 400 validation error","Model unavailable or upstream GPT-5.5 error — 500 or 503 response"],"whenToPreferThis":"Choose this endpoint when you need to extract specific named fields or a structured JSON object from unstructured or semi-structured text without a subscription, paying only per call in USDC. Ideal for agents that occasionally need JSON extraction without committing to a monthly plan, or for x402-native workflows on Base. Prefer over general chat completions endpoints when the goal is purely structured field extraction rather than open-ended generation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:48:54.317Z","isFirstParty":false}