{"uid":"cap_kX_vwyBYCCfro6i_s1I9p","slug":"cobol-copybook-java-record-generator-854035bb","name":"COBOL Copybook Java Record Generator","description":"Tools for mainframe modernization projects: convert COBOL copybooks to JSON schema, decode real EBCDIC/packed-decimal mainframe records into field values (schema validation against sample data), and generate modern Java record source code directly from a copybook. Handles REDEFINES (including group-level alternate layouts), OCCURS and OCCURS DEPENDING ON (variable-length repeating groups, resolved at decode time using the actual runtime count), 66-level RENAMES, and 77-level standalone items. Accepts payment on Base, Polygon, Arbitrum, and Solana (USDC) - pick whichever network your wallet holds funds on.","url":"https://cobol-modernize-api.fly.dev/generate-java-record","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"copybook_name":{"type":"string","description":"Optional filename for reference"},"copybook_text":{"type":"string","description":"Raw COBOL copybook source text"}}},"responseSchema":{"type":"json","example":{"records":[{"class_name":"ExampleRecord","java_source":"public record ExampleRecord(...) {}"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.3","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":"$0.3/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.3","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.3","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0z9NAQnoYguzDqxbdKzrI","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.3","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates modern Java record source code from a COBOL copybook definition, handling REDEFINES, OCCURS, RENAMES, and standalone items","exampleAgentPrompt":"Take this COBOL copybook — it has REDEFINES and OCCURS DEPENDING ON clauses — and generate the equivalent modern Java record source code for me so I can use it in our Spring Boot microservice.","exampleUseCases":[{"title":"Mainframe migration to Spring Boot","prompt":"We're migrating our COBOL batch system to Java microservices. Here's our CUSTOMER-RECORD copybook with nested REDEFINES for address types — generate the Java record class I can drop straight into the project."},{"title":"Auto-generate DTO from legacy layout","prompt":"I have a COBOL copybook for our LOAN-DETAIL structure that uses OCCURS DEPENDING ON for variable-length installment groups. Can you generate the Java record code from it so our backend team doesn't have to write it by hand?"},{"title":"CI pipeline code generation from copybook","prompt":"Our build pipeline needs to auto-generate Java records every time a copybook changes. Here's the latest version of ACCT-TRANS copybook with 66-level RENAMES — produce the Java record source so we can commit it to the repo."}],"resultDescription":"Returns a JSON object containing an array of records, each with a class_name (the Java record class name) and java_source (the complete Java record source code as a string), ready to compile and use in a modern Java application.","failureModes":["Invalid or malformed COBOL copybook syntax returns a parse error","Unsupported COBOL constructs not handled by the parser may return an error or incomplete output","OCCURS DEPENDING ON without a resolvable reference may fail at generation time","Network timeouts if the copybook is very large","Payment failure or insufficient USDC balance blocks the request"],"whenToPreferThis":"Choose this endpoint when you need to automatically generate compilable Java record source code from a COBOL copybook, especially when the copybook uses advanced constructs like REDEFINES, OCCURS DEPENDING ON, 66-level RENAMES, or 77-level items that require specialized parsing. Prefer this over manual coding or generic LLM generation when you need deterministic, structure-aware output that correctly handles all COBOL data division constructs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:36:38.547Z","isFirstParty":false}