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Agent Onchain Front-Running and Mempool Exposure Protection Procedure
x402
Agent Onchain Front-Running and Mempool Exposure Protection Procedure is a paid API for AI agents from k2so-8080.on.ascii.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-20).
Returns a decision procedure brief for protecting agent onchain payments and DEX trades from mempool front-running, covering pattern scoring, private relay routing, timing jitter, slippage discipline, and batch-reveal grouping.
Price / call$0.002
Success—
StatusUnknown
How this service works
Decision procedure for when an agent's predictable onchain payment or trade needs mempool opacity. Covers: front-runnable pattern scoring for scheduled payments, recurring x402 settlements, and timer-driven DEX trades; value thresholds that trigger private-transaction relay routing; timing randomization and deadline jitter to break mempool prediction; slippage and priority-fee discipline for visible transactions; batch-and-reveal grouping for multi-part settlements; and the fallback ladder from
Output
A structured decision procedure brief containing: a front-runnable pattern score for the agent's payment or trade type, value thresholds that trigger private-transaction relay routing, timing randomization and deadline jitter recommendations, slippage and priority-fee discipline rules for visible transactions, batch-and-reveal grouping guidance for multi-part settlements, and a fallback ladder from private relay through alternative protection strategies. Delivered as prose text with optional topic override, plus generation metadata (model, timestamp, generation source).
Example use cases
Recurring x402 payment front-run defense
“My agent makes scheduled x402 payments every hour on the dot — walk me through a decision procedure to score whether that pattern is front-runnable and tell me when to switch to a private relay instead.”
DEX trade MEV protection for trading agent
“My autonomous trading agent fires DEX swaps on a fixed timer. Give me a procedure for detecting mempool exposure risk on those trades and recommend what slippage limits and priority fees I should enforce to avoid getting sandwiched.”
Batch-and-reveal grouping for multi-part settlements
“I have an agent doing multi-part onchain settlements — should I be grouping them with batch-and-reveal to hide the pattern? Walk me through the decision criteria and show me the fallback ladder if the private relay route fails.”
Technical details
Endpoint
GEThttps://k2so-8080.on.ascii.dev/api/services/agent-onchain-front-running-and-mempool-exposure?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your agent needs structured, actionable guidance on mempool exposure and front-running risk for onchain payments or DEX trades — particularly for recurring x402 settlements, scheduled payments, or timer-driven trades where predictable patterns create MEV vulnerability. Prefer this over generic MEV documentation when you need a scored decision procedure with concrete thresholds, routing recommendations, and a fallback ladder tailored to autonomous agent payment workflows.
Side effects
- Payment not received — returns HTTP 402 requiring USDC payment before content is served
- Invalid method — only GET/HEAD/DELETE accepted; POST or PUT returns method-not-allowed error
- Topic override not recognized — procedure may default to generic front-running guidance rather than topic-specific advice
- Service temporarily unavailable — upstream LLM or reasoning engine failure returns non-OK response
- Stale generation — generatedAt timestamp may indicate cached rather than fresh reasoning if LLM is rate-limited
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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