{"uid":"cap_qnsMUkDT8mFPzixu_lqJo","slug":"tenjin-why-x402-stellar-exact-payments-fail-on-public-rpc-5-layer-b90ff440","name":"Tenjin: Why x402 Stellar Exact Payments Fail on Public RPC — 5-Layer Diagnostic","description":"Why x402 Stellar exact payments fail on public RPC: a 5-layer diagnostic. Source-backed diagnostic for Stellar x402 exact payments: separate facilitator behavior from public RPC, then isolate negotiation, auth-entry, simulation, submission, confirmation, and contract-account failures.","url":"https://tenjin.blog/api/read/codex-evidence-3206/why-x402-stellar-exact-payments-fail-on-public-rpc-a-5-layer-diagnostic","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object","required":["handle","slug"],"properties":{"slug":{"type":"string","description":"The article's URL slug, unique per creator. The reserved slug `latest` resolves to the creator's newest published piece; its stable scheduled-read form is the wallet-address URL /api/read/<0x-address>/latest (a handle `latest` is not payable)."},"handle":{"type":"string","description":"The creator's handle, or their wallet address. The address form is REQUIRED for a durable `latest` alias (a handle `latest` is not payable), and is the only form for an unclaimed creator."}}},"queryParams":{"type":"object","required":[],"properties":{},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_1tC3LK3-AyMb6PJ9AOkom","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Delivers a source-backed diagnostic article explaining the 5 failure layers in x402 Stellar exact payments on public RPC, covering facilitator behavior, negotiation, auth-entry, simulation, submission, confirmation, and contract-account failures.","exampleAgentPrompt":"Can you pull up the Tenjin diagnostic article on why x402 Stellar exact payments fail on public RPC — the one that breaks down all 5 failure layers from negotiation through contract-account issues?","exampleUseCases":[{"title":"Debugging x402 Stellar payment failures","prompt":"I'm building an x402 payment flow on Stellar and my exact payments keep failing on the public RPC — can you get me the Tenjin article that walks through all 5 diagnostic layers so I can figure out whether it's a facilitator issue or something at the simulation or submission stage?"},{"title":"Understanding facilitator vs RPC behavior","prompt":"Can you fetch the Tenjin piece that explains the difference between facilitator behavior and public RPC behavior for x402 Stellar exact payments? I need to understand where auth-entry failures fit in."},{"title":"Learning x402 Stellar confirmation failure causes","prompt":"Pull up the Tenjin diagnostic on x402 Stellar exact payment failures — specifically I want to understand the confirmation and contract-account failure layers and what causes them on public RPC."}],"resultDescription":"The full text of a technical diagnostic article covering 5 layers of x402 Stellar exact payment failures on public RPC: facilitator behavior separation, negotiation failures, auth-entry failures, simulation failures, submission failures, confirmation failures, and contract-account failures — each with source-backed evidence.","failureModes":["Article not found if slug or handle is incorrect (404)","Payment required but insufficient USDC balance (402)","Public RPC downtime causing retrieval failure","Rate limiting on repeated requests"],"whenToPreferThis":"Use this endpoint when you need a structured, source-backed technical deep-dive specifically on x402 Stellar exact payment failures across all protocol layers, particularly when debugging issues that span the facilitator, public RPC, and contract-account boundary.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T19:03:05.087Z","isFirstParty":false}