fix(agentic-payments): warn that self-hosted facilitators underbid mainnet fees - #134
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…innet fees The stock ExactStellarScheme bids BASE_FEE (100 stroops) on the settlement transaction and on its fee bump. Mainnet Soroban inclusion fees currently sit around 200 stroops at p10-p99, so self-hosted facilitators pass /verify and then time out on /settle. Document the symptom, how to check the going rate, and a feeBumpSigner workaround until x402-foundation/x402#3503 (or similar) ships. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Adds a "Common pitfalls" entry to
skills/agentic-payments/x402.mdfor self-hosted facilitators onstellar:pubnet:/verifypasses, but/settletimes out.Why
ExactStellarSchemein@x402/stellar/exact/facilitator(latest, 2.26.0) bidsBASE_FEE(100 stroops) as the inclusion fee on the settlement transaction and on its fee bump, and there is no option to change it. On testnet that is enough. On mainnet it often isn't, and the transaction never lands. An agent following the skill today would ship a facilitator that works on testnet and then silently fails on mainnet.What was checked against live sources
getFeeStatson a pubnet RPC (last 50 ledgers, ~3.9k txs):sorobanInclusionFeemin 100, mode 200, p10 through p99 all 200. A 100-stroop bid sits at the floor.a220bdf9…106e.@stellar/stellar-sdkand@x402/stellar2.26.0 on a throwaway key.INCLUSION_FEEper operation.address,signAuthEntry).inclusionFeeStroopsoption. Once a release includes it, the entry's Fix can point to that option instead of the workaround.The entry sits before the browser-signing pitfall and follows the Symptom / Cause / Fix shape of the other entries. No other files changed.
AI disclosure
This change was drafted with Claude Code. I reviewed the text, and the fee data and the snippet were checked as described above.
🤖 Generated with Claude Code