{"slug":"api-mekler-ai-v1-data-packages-check-registry-identity-afe46c","title":"Check public PyPI or npm package identity and a requested version","host":"api.mekler.ai","method":"POST","resource":"https://api.mekler.ai/v1/data/packages/check-registry-identity","category":"code","description":"Check public PyPI or npm package identity and a requested version. Compare up to five supplied candidate names for normalized-name equality and bounded edit-distance confusion. Return sourced existence and version evidence without downloading code. No malware, vulnerability, publisher-authenticity o","price_listed":0.005,"price_asked":0.005,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":1007,"reported_calls_30d":0,"reported_payers_30d":0,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"compare_names":["pip-tools"],"ecosystem":"pypi","name":"pip","request_id":"package-identity-example-001"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"compare_names":{"default":[],"items":{"maxLength":128,"type":"string"},"maxItems":5,"type":"array"},"ecosystem":{"enum":["pypi","npm"],"type":"string"},"name":{"maxLength":128,"type":"string"},"request_id":{"pattern":"^[A-Za-z0-9_-]{16,64}$","type":"string"},"version":{"maxLength":80,"type":["string","null"]}},"required":["ecosystem","name","request_id"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"additionalProperties":false,"properties":{"comparisons":{"items":{"additionalProperties":false,"properties":{"edit_distance":{"type":"integer"},"exists":{"type":"boolean"},"name":{"type":"string"},"package_exists":{"type":"boolean"},"possible_name_confusion":{"type":"boolean"},"requested_version":{"type":["string","null"]},"same_normalized_name":{"type":"boolean"},"source_url":{"type":"string"},"version":{"type":["string","null"]},"version_exists":{"type":["boolean","null"]}},"required":["exists","name","version","source_url","requested_version","package_exists","version_exists","edit_distance","same_normalized_name","possible_name_confusion"],"type":"object"},"type":"array"},"ecosystem":{"type":"string"},"identity":{"additionalProperties":false,"properties":{"exists":{"type":"boolean"},"name":{"type":"string"},"package_exists":{"type":"boolean"},"requested_version":{"type":["string","null"]},"source_url":{"type":"string"},"version":{"type":["string","null"]},"version_exists":{"type":["boolean","null"]}},"required":["exists","name","version","source_url","requested_version","package_exists","version_exists"],"type":"object"},"limitations":{"items":{"type":"string"},"type":"array"},"observed_at":{"type":"string"},"status":{"type":"string"}},"required":["status","ecosystem","identity","comparisons","observed_at","limitations"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-20","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.005,"price_match":true,"latency_ms":1007,"error":null}],"description_full":"Check public PyPI or npm package identity and a requested version. Compare up to five supplied candidate names for normalized-name equality and bounded edit-distance confusion. Return sourced existence and version evidence without downloading code. No malware, vulnerability, publisher-authenticity or installation-safety guarantee.","last_updated":"2026-10-20T17:33:15.198Z","schemes":["exact"]}