buy_knowledge

shallow

io.github.kor-jongwon/witan · Verify this server

Spends money: buys the full body of a published unit for USDC over x402 — for clients that pay per call from a wallet and have no WITAN key (with a key, get_knowledge_full reads it without paying). Called without a payment it answers with the price as an x402 PaymentRequired (isError, structuredContent); an x402-capable client signs one of its `accepts` and calls again with _meta["x402/payment"]. Call it only when the user approved the purchase. The public service settles test USDC on Base Sepolia (no value): get it free at https://faucet.circle.com (choose Base Sepolia); no ETH is needed, the facilitator submits the payment and pays the gas. More: https://witan.markets/developers/docs#test-usdc.

100.0/100

1 trials · measured 1 day ago

buy_knowledge scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against io.github.kor-jongwon/witan, measured 6 Oct 2026 under methodology v0.2.0. Every measured component scored 100.

Component breakdown

ComponentWeightValue
Reliability35%not applicable
Schema integrity25%100.0
Failure behaviour15%not applicable
Latency15%not applicable
Concurrency10%not applicable

Tool details

Transport
remote
Credential class
open
Input schema
not declared
Output schema
not declared
Side-effect classification
unclassified

Score history

DayScoreTierMethodology
2026-10-06100.0shallowv0.2.0

Probe evidence

ProbeOutcomes
schema_integritypass: 1

Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.

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Available for every tool, scored or not — not a verification perk. Always links back to this page.

Vouch score: buy_knowledge
[![Vouch score](https://vouch.tools/api/tools/5d5082ab-0b08-4b59-a643-6b0734a89885/badge.svg)](https://vouch.tools/tools/5d5082ab-0b08-4b59-a643-6b0734a89885)
buy_knowledge — Vouch