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docs: MPP Charge verified on the hosted testnet endpoint - #141
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On 15 Oct 2026 nirium@0.16.1's initMpp()/mppFetch() paid nirium-agent.fly.dev/api/v1/mpp/signals in pull and push mode; both settled on Stellar testnet (b8c4ed56..., 96d43d6f...) and returned the resource. The 1 Oct "402 Verification Failed" no longer reproduces. Mainnet stays untested and the section keeps "not for production". The Python README keeps saying its mpp_fetch() cannot pay; only the note about the hosted endpoint changes. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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The SDK README still said the hosted testnet MPP endpoint rejects payments (what we saw on 1 Oct). That's no longer true, so the text was misleading in the other direction.
Re-tested on 15 Oct 2026 (UTC) with the published
nirium@0.16.1,initMpp()+mppFetch()againsthttps://nirium-agent.fly.dev/api/v1/mpp/signals:Payment-Receiptb8c4ed56…Payment-Receipt96d43d6f…Both show on Horizon as 0.02 USDC SAC transfers to the box's recipient
GC4Q5TWW…UOPC. The same day the reference@stellar/mpp0.7.1 client also settled three payments (/signalspull,/marketpush and pull).What stays as it was: mainnet is still untested (it would spend real USDC), the section still says "not for production", and the Python README still says
mpp_fetch()cannot pay. Only its note about the hosted endpoint changes.Disclosure: drafted with AI assistance under my direction and reviewed by hand.
🤖 Generated with Claude Code