{"uid":"cap_n_UYlQw927G4S-ob1gR0v","slug":"fastapi-online-json-to-yaml-converter-714ebb09","name":"fastapi.online JSON to YAML Converter","description":"Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.","url":"https://api.fastapi.online/json-to-yaml","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"json":{}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0005","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":"$0.0005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_9Y1VWCbjnGjHfYU0kmD6S","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts a JSON object into its equivalent YAML representation","exampleAgentPrompt":"Can you convert this JSON into YAML for me? Here's the data: {\"name\": \"my-service\", \"replicas\": 3, \"port\": 8080}","exampleUseCases":[{"title":"Kubernetes manifest from JSON config","prompt":"I have this JSON config for a Kubernetes deployment — {\"apiVersion\": \"apps/v1\", \"kind\": \"Deployment\", \"metadata\": {\"name\": \"web-app\"}} — can you convert it to YAML so I can use it as a manifest file?"},{"title":"CI/CD pipeline YAML generation","prompt":"My build pipeline settings are stored as JSON: {\"pipeline\": \"build\", \"steps\": [\"test\", \"lint\", \"deploy\"], \"timeout\": 300}. Convert that to YAML format for me so I can drop it into my GitHub Actions config."},{"title":"Docker Compose file reformatting","prompt":"Convert this JSON to YAML for me: {\"version\": \"3\", \"services\": {\"web\": {\"image\": \"nginx\", \"ports\": [\"80:80\"]}}} — I need it in YAML to use as a docker-compose.yml."}],"resultDescription":"A YAML-formatted string that is semantically equivalent to the input JSON object, with proper indentation, key-value pairs, and list formatting following YAML conventions.","failureModes":["Invalid or malformed JSON input returns an error response","Deeply nested or very large JSON objects may produce verbose YAML output","JSON with special characters in keys may require quoted YAML keys","Null or empty JSON input may return an error or empty YAML"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-call JSON-to-YAML conversion without signing up for a service. Ideal for agents handling configuration file generation, DevOps workflows, or any scenario where a downstream tool requires YAML but data is available as JSON. At $0.0005 USDC per call with no signup required, it is well-suited for lightweight, occasional conversions in automated pipelines.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:58:01.238Z","isFirstParty":false}