{"uid":"cap__d4W-8DMzc0VsNx-e6zOs","slug":"tenjin-x402-watch-why-stellar-exact-payments-fail-on-public-rpc-4b49bde6","name":"Tenjin x402-Watch: Why Stellar Exact Payments Fail on Public RPC","description":"Why are x402 Stellar exact payments failing on public RPC? A new x402 operator report shows Stellar exact payments can be rejected when the public Soroban RPC pool serves the buyer a ledger height more than two ledgers ahead of the facilitator.","url":"https://tenjin.blog/api/read/x402-watch/why-are-x402-stellar-exact-payments-failing-on-public-rpc","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_ZLiiMV7O8K_yaf1F_IcEc","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":"Returns a pay-per-read article explaining why x402 Stellar exact payments are rejected when the public Soroban RPC pool serves a ledger height more than two ledgers ahead of the facilitator.","exampleAgentPrompt":"Pull up the Tenjin x402-Watch article on why Stellar exact payments fail on public RPC — the one about ledger height being more than two ledgers ahead of the facilitator.","exampleUseCases":[{"title":"Debugging Stellar x402 payment failures","prompt":"I'm building an x402 integration on Stellar and my exact payments keep getting rejected. Can you fetch the Tenjin article explaining why this happens with the public Soroban RPC pool and what the ledger height issue is all about?"},{"title":"x402 operator infrastructure research","prompt":"I'm running an x402 facilitator and want to understand the public RPC ledger sync problem. Grab the Tenjin x402-Watch piece on why Stellar exact payments fail on public RPC so I can understand the root cause."},{"title":"Soroban RPC reliability investigation","prompt":"What does the latest Tenjin x402-Watch report say about Stellar exact payment failures related to the Soroban RPC pool serving buyers a ledger height ahead of the facilitator?"}],"resultDescription":"The full text of a Tenjin pay-per-read article detailing why x402 Stellar exact payments are rejected when the public Soroban RPC pool serves the buyer a ledger height more than two ledgers ahead of the facilitator, including analysis and operator-level recommendations.","failureModes":["Payment not completed — returns 402 if the $0.05 USDC micropayment is not attached or fails","Invalid handle or slug — returns 404 if the creator handle 'x402-watch' or slug does not resolve","RPC or network error — upstream Soroban RPC issues may cause timeouts","Ledger sync issue — ironic failure if the caller itself encounters the very RPC sync problem described in the article"],"whenToPreferThis":"Choose this endpoint when you need the specific Tenjin x402-Watch operator report on Stellar exact payment failures caused by public Soroban RPC ledger height mismatches. Prefer it over general web search when you want a curated, cited, pay-per-read analysis from an independent publisher focused on x402 infrastructure issues.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T07:01:40.838Z","isFirstParty":false}