{"uid":"cap_aGjEI3nb5Ir4rJSP7uUPC","slug":"json-url-fields-check-5c36ea03","name":"JSON URL Fields Check","description":"JSON URL Fields Check: JSON URL Fields Check checks selected fields for absolute HTTP or HTTPS URL shape from bounded caller-supplied values without an external provider. Call JSON URL Fields Check 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 URL Fields Check as versioned deterministic JSON. Price: $0.001 USDC v…","url":"https://api.delx.ai/api/v1/x402/json-url-fields-check","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"fields":{"type":"array","items":{"type":"string","maxLength":8192},"maxItems":256,"description":"Fields supplied to JSON URL Fields Check; used only for this bounded calculation and processed in memory without retention."},"object":{"type":"object","description":"Object supplied to JSON URL Fields Check; used only for this bounded calculation and processed in memory without retention.","maxProperties":128,"additionalProperties":true}}},"responseSchema":{"type":"json","example":{"result":{"passed":true,"invalid_fields":[]},"schema":"delx/util-json-url-fields-check/v1","status":"pass","evidence":{"retained":false,"input_sha256":"cb4e55880f0341cb1fa757a2bd29ae91f897ab40c9252e096c640684ad990ba9","external_calls":0},"operation":"data_batch:json_url_fields_check"}},"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_KtiTfcim1kuwf5D2VNVAl","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":"Validates selected fields in a JSON object to confirm they contain absolute HTTP or HTTPS URLs, returning counts, normalized values, and a versioned validation result.","exampleAgentPrompt":"Before I hand this JSON payload off to the downstream service, can you check whether the fields 'homepage', 'avatar_url', and 'callback' all contain valid absolute HTTP or HTTPS URLs? Here's the object: {\"homepage\": \"https://example.com\", \"avatar_url\": \"ftp://files.example.com/img.png\", \"callback\": \"not-a-url\"}.","exampleUseCases":[{"title":"Pre-flight check before downstream API call","prompt":"I'm about to send this structured plan to the reporting tool but it requires all link fields to be valid absolute URLs — can you check the fields 'report_url', 'logo_url', and 'redirect' in this object and tell me which ones pass the HTTP/HTTPS URL shape test?"},{"title":"Batch payload URL field audit","prompt":"I have a JSON object with up to 50 fields and I need to know which ones I marked as URL fields actually contain proper absolute HTTP or HTTPS URLs — check the fields ['source', 'thumbnail', 'cta_link', 'fallback_url'] against this object and give me counts and normalized values."},{"title":"Agent result envelope URL validation","prompt":"My agent just produced a result envelope and I want to make sure the 'webhook_url' and 'asset_url' fields contain valid HTTPS URLs before I trigger the next workflow step — can you run the URL fields check on those two fields?"}],"resultDescription":"Returns a versioned deterministic JSON document containing: a pass/fail finding per checked field indicating whether the value matches absolute HTTP or HTTPS URL shape, counts of passing and failing fields, normalized URL values where applicable, and a versioned result contract identifier for downstream contract compliance.","failureModes":["Field name not found in the provided object — reported as missing or null in findings","Field value is not a string — flagged as invalid URL shape","URL uses a non-HTTP/HTTPS scheme (e.g. ftp://, mailto:) — fails the absolute HTTP/HTTPS check","Empty or null field values — counted as failures in the result","Exceeding 256 items in the fields array or 128 properties in the object — may result in request rejection","Malformed input schema (non-object body) — likely returns a 4xx error"],"whenToPreferThis":"Choose this endpoint when you need a deterministic, versioned, in-memory URL shape validation for specific named fields within a JSON object — particularly before handing structured data or a batch plan to a downstream tool with a strict URL contract. Prefer this over a general URL reachability checker (like Delx Url Health) when you only need format/shape validation without making an outbound network request to the URL. Prefer this over writing custom regex logic when you want a versioned, auditable contract result.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T01:08:58.021Z","isFirstParty":false}