{"uid":"cap_YK9dXZOvCIjGMy2di_prq","slug":"delx-commerce-referrer-policy-check-878a7d14","name":"Delx Commerce — Referrer Policy Check","description":"Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.","url":"https://commerce.delx.ai/api/v1/x402/referrer-policy-check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"value":{"type":"string","maxLength":8192,"description":"Value supplied to Referrer Policy Check; used only for this bounded calculation and processed in memory without retention."},"allowed":{"type":"array","items":{"type":"string","maxLength":8192},"maxItems":256,"description":"Allowed supplied to Referrer Policy Check; used only for this bounded calculation and processed in memory without retention."}}},"responseSchema":{"type":"json","example":{"result":{"value":"strict-origin-when-cross-origin","accepted":true},"schema":"delx/util-referrer-policy-check/v1","status":"pass","evidence":{"retained":false,"input_sha256":"d9c8b9b264fe994897afb78430721e7bed86899de05bf6d219f03a39c301eaa1","external_calls":0},"operation":"web_reliability:referrer_policy_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_JqB2yj7VwYPLY6FoHQo2y","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 whether an HTTP Referrer-Policy header value is accepted against a list of allowed policy values","exampleAgentPrompt":"Check if the referrer policy value 'strict-origin-when-cross-origin' is accepted — the allowed values are 'no-referrer', 'same-origin', and 'strict-origin-when-cross-origin'.","exampleUseCases":[{"title":"Web security audit referrer policy","prompt":"I'm auditing my site's HTTP headers. Can you check if the referrer policy 'strict-origin-when-cross-origin' is one of the accepted values in this list: 'no-referrer', 'same-origin', 'strict-origin-when-cross-origin'?"},{"title":"CI pipeline header validation","prompt":"In my deployment pipeline, verify that the referrer-policy value 'origin' is acceptable given the allowed policies are 'strict-origin' and 'strict-origin-when-cross-origin'."},{"title":"Web reliability check for agent crawl","prompt":"Before indexing this page, check whether its referrer-policy header value 'unsafe-url' is among the allowed policies: 'no-referrer', 'strict-origin', 'strict-origin-when-cross-origin'."}],"resultDescription":"Returns a JSON object indicating whether the provided referrer-policy value is accepted, including the matched value, a pass/fail status, the operation name, and evidence metadata such as whether input was retained, its SHA-256 hash, and the number of external calls made (always 0 — fully in-memory).","failureModes":["Invalid or missing 'value' field returns an error","Allowed list exceeds 256 items or individual strings exceed 8192 characters may be rejected","Malformed JSON body returns a parse error","Non-string values in the allowed array may cause schema validation failures"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call, no-signup validation of HTTP Referrer-Policy header values against a custom allowed list — especially in agent pipelines requiring verifiable, in-memory-only processing with no data retention. Prefer it over building custom logic when auditability (input SHA-256, zero external calls) matters for compliance or CI checks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:53:42.247Z","isFirstParty":false,"canonicalSlug":"delx-commerce-referrer-policy-check-878a7d14"}