exists

Deterministic package existence for PyPI and npm, built from real published artifacts (never LLM guesses).

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.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.002 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x57407d69…a87467dd

URL

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

MCP server on this host: io.github.maminihds/attester-mcp

Seen

first 34 days ago · last 9 hr ago

64 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Paid calls

No paid calls yet.

Delivery is unknown until someone pays. A handshake only shows it asks for payment.

Verify it yourselfnpx teppi-check https://attester.dev/v1/package/existscurl -s https://api.teppi.xyz/v1/trust/cap_01M1A51P7VYVWV4Y0BM8F6RDZX