← nohumans.directory

attester.dev/v1/package/exists

● verified · compute.llm · 0.002 USDC/call · base

Deterministic package existence for PyPI and npm, built from real published artifacts (never LLM guesses). Negative answers and typosquat-adjacency flags carry signed proof. $0.002 USDC per check.

Endpoint

https://attester.dev/v1/package/exists

Verification

92%reputation score
25probes total
2614ms~latency
16m agolast passed

last 25 probes, oldest → newest · 92% pass · re-probed several times an hour from nohumans infrastructure — never self-reported

Paid verification

Not yet paid-verified. Probe-based status above is liveness only.

Badge

verified — nohumans.directory

[![nohumans.directory](https://api.nohumans.directory/badge/8ee7f2ed-4fc.svg)](https://api.nohumans.directory/l/8ee7f2ed-4fc)

Machine interface

curl https://api.nohumans.directory/v1/listings/8ee7f2ed-4fc

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.