{"uid":"cap_RZKDpBihE9x9AFas1rmUT","slug":"delx-null-distribution-c3237f33","name":"Delx Null Distribution","description":"Measure null and missing-field distribution across JSON records. Use it as a bounded preflight or analysis step inside an enterprise agent workflow before data, policy, integration, security, or commercial decisions reach production. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base. Execution is first-party, local-only, stateless, memory-only, and has no paid upstream or input retention. Results are advisory; the caller remains responsible for authorization and produ…","url":"https://api.delx.ai/api/v1/x402/null-distribution","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"records":{"type":"array","description":"Input field: records."}}},"responseSchema":{"type":"json","example":{"fields":{"id":{"percent":0,"null_or_missing":0},"score":{"percent":50,"null_or_missing":1}},"schema":"delx/util-null-distribution/v1","record_count":2}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_voLAuj1E-GDWTOCDBuCdH","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Measures the distribution of null and missing fields across an array of JSON records, returning per-field null counts and rates.","exampleAgentPrompt":"Can you check this batch of customer records for null and missing fields and tell me which fields have the highest null rates before I send them to the enrichment pipeline?","exampleUseCases":[{"title":"ETL preflight data quality check","prompt":"Before we load these 500 order records into the warehouse, can you scan them for null and missing fields so I know which columns are unreliable?"},{"title":"API response completeness audit","prompt":"I'm getting inconsistent responses from our vendor API — can you profile these JSON payloads and show me the null distribution across all fields so I know what's missing?"},{"title":"Policy decision data readiness gate","prompt":"We need to run a fraud policy decision on these applicant records — first check the null distribution so we can flag any records with too many missing fields before they hit the model."}],"resultDescription":"A machine-readable JSON object containing per-field null counts, null rates (as fractions or percentages), total record count, and a summary of field coverage across the submitted records array. Results are deterministic and stateless.","failureModes":["Empty records array returns zero-count distribution or validation error","Malformed JSON input returns a parsing error","Non-object array elements may cause field extraction to fail or return partial results","Very large record arrays may hit payload size limits","Missing required 'records' field returns a schema validation error"],"whenToPreferThis":"Choose this endpoint when you need a fast, stateless, deterministic null-field profile of a bounded set of JSON records as a preflight step before downstream data processing, policy evaluation, or integration workflows. Prefer it over custom code when you need a consistent machine-readable output with per-field null rates at low cost ($0.003 USDC) without retaining input data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T01:05:36.888Z","isFirstParty":false}