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httpcdp

API-existence Oracle: package

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.

Resource URL

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

Payment options

exactBase (8453)

$0.002 USDC

Max amount

Pay to
0x57407D691F755cAa107647718F3582a8A87467dD
Timeout
300s

Tags

oraclepackageshallucination-checkx402agents

For agents

Prompt snippet for AI agents

Find and pay for this x402 resource:
URL: https://attester.dev/v1/package/exists
Type: http
Sources: cdp

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