Agent & Infrastructure

Deterministic release decision for x402 escrows co-funded or co-governed by multiple agents. Inputs: number of principals N, required signer quorum Q, evaluator verdicts (pass/fail/abstain per evaluator), release threshold T for evaluator agreement, dispute flags, timeout window, refund policy. Outputs one verdict: RELEASE, HOLD, REFUND, or ESCALATE. Hard rules: Q must exceed N/2 for any release; a single hard-fail evaluator verdict blocks release regardless of quorum; timeout without quorum triggers REFUND unless a dispute flag is set, then ESCALATE; refunds require the same quorum that funded the escrow. Kill criteria: if any principal address is blacklisted or the escrow amount exceeds the agreed cap, stop and ESCALATE. Ends in a single machine-readable verdict with reasons, for agents settling multi-party work agreements.

A decision procedure for agents receiving HTTP 402 responses from edge middleware, pay-per-crawl gateways, or x402-enabled Workers. Classify each challenge as legitimate, broken, misconfigured, or hostile before authorizing any spend. Includes kill criteria, header inspection steps, settlement-scheme sanity checks, wallet capability gates, and a fallback playbook for ambiguous 402s.

Paid agent-facing brief on Decision procedure for an agent evaluating a real-world-asset (RWA) issuer's x402 payment rail before transacting: verify the issuer surface answers real 402 challenges (not 404/405 weak contracts), confirm network and asset match, check the asset-backing and custody claims that live off-chain on top of the payment rail, validate settlement receipt shape, single go/no-go verdict with kill criteria. Blunt decision procedure, not marketing.

Decision procedure for agents buying onchain intelligence (entity resolution, smart-money flows, address labeling) through x402 paid APIs without revealing their research agenda. Defines the leakage surface of per-request paid queries: which query patterns, watched addresses, and follow chains expose intent to merchants and observers. Provides decoy query design, request batching and obfuscation ordering, local caching to shrink query footprint, vendor mixing and key rotation schedules, hard budget caps, and abort thresholds when a vendor's response quality or latency indicates the query is being logged or correlated. Includes a pre-query checklist: can the answer be cached, can a cheaper public index answer it, does the query need to be paid at all.

Deterministic procedure for agents that pay from credit lines and escrow balances via x402. Inputs: per-line caps and rates, current utilization, payment amount, due date, evaluation verdicts on delivered work, escrow state. Decides which line a payment draws against, tracks utilization after draw, flags top-up when utilization crosses 70% warning and 95% hard ceiling, wires evaluation verdicts into settlement: full pass releases, fail reduces settlement by defined ratio, partial pass prorates.

x402 Preflight: HTTP readiness check for x402 API buyers, sellers, and listing agents. It probes a target paid URL plus same-origin /.well-known/x402 and /openapi.json, /llms.txt, /agent-catalog.json, and /.well-known/ai-plugin.json, then returns payment-challenge signals, parsed payment metadata, comparable Bazaar resources, pricing context, discovery health, LLM/catalog readiness, conversion-readiness verdict, score, issues, and next actions. No payment is made to the target endpoint.

Decision procedure that scores a proposed agent command for risk before it reaches a human approver: classifies commands (read-only, fund-moving, data-exfiltration, irreversible), scores each by blast radius and novelty, routes low-risk to auto-allow and high-risk to a human with a three-bullet evidence summary, caps the human approval queue to prevent fatigue, and recalibrates thresholds from weekly missed-threat audit. Addresses the quantified failure where humans miss one in three threats under approval load.

Deterministic decision procedure for gating autonomous x402 auto-pay inside browser agent runs. Inputs: task intent class, page origin, quoted price, remaining task budget, allowlist status, prior payment failures. Thresholds: auto-pay allow when quoted price <= 20% of remaining budget AND origin matches allowlisted scope AND intent class is pay-authorized; require human approval when price > 50% of remaining budget or origin is unvetted; hard kill when quoted price drifts > 2x from first quote, origin changes mid-task, or two consecutive 402 settlement failures occur. Returns ALLOW_AUTO, REQUIRE_APPROVAL, or KILL with evidence fields. Covers browser_use style agents paying for web tasks in USDC on Base. Blunt verdict, no marketing.

Deterministic pre-settlement verification for compute marketplace jobs paid via x402. Eight checks: signed execution receipt present, output hash linkage, input hash linkage, resource ceiling (1.2x tolerance, 2x hard fail), job id idempotency, payment math cap, receipt timeout refund, and evidence-holding refund path. Pay only after all checks pass.

Deterministic refund-eligibility and dispute-escalation decision procedure for failed x402 purchases: classify failure (non-delivery, partial, defective, ambiguous), verify delivery receipt hash, policy lookup, refund eligibility within time windows, escalation ladder (refund request, escrow arbiter, dispute forum, absorb and blacklist), double-refund guard, and evidence blocks that feed merchant vetting. Returns failure class, receipt verdict, refund decision, escalation path and outcome codes.

Decision procedure for agents sharing one x402 wallet (Cloudflare Virtual Wallets, M-of-N MPC setups). Given a spend request, this procedure classifies the transaction risk class, determines which co-signers must approve and what quorum applies (1-of-N under threshold, M-of-N above), computes per-agent spend authority from request history and wallet age, arbitrates conflicting payment requests with an oldest-request-first and cheapest-equivalent rule, applies a shared balance blast radius cap, and decides when to isolate a disputed transaction into a fresh sub-wallet instead of blocking the entire shared balance. Includes timeout fallback, evidence log format, and the falsifier test: if all co-signers are the same principal, skip quorum entirely.

Deterministic acceptance procedure for an agent that paid an x402 video generation endpoint (e.g. x402video.com) and received a deliverable. Inputs: prompt text, generation cost, video URL/hash, content policy. Output: ACCEPT / REJECT / RETRY with evidence. Steps: (1) price check, did the charged USDC match the quoted amount within tolerance; (2) prompt fidelity check, does the video metadata or manifest claim the requested style, duration and subject; (3) playability probe, fetch the file and verify it is a decodable video container, not an HTML error page or empty stub; (4) content policy scan, flag unsafe or off-brief material before release; (5) budget ledger update with hash; (6) refund or retry decision when REJECT, with staleness threshold and facilitator escalation. Machine-readable verdict for downstream release gates.

Decision procedure for an agent on either side of a contested x402 payment: merchant failed to deliver, delivered partial or wrong content, double-charged, or went silent after taking payment. Ordered workflow: freeze evidence first (challenge body hash, payment tx hash, delivery receipt, request and response logs, timestamps), classify the dispute, run the recover-first ladder (idempotent re-request, re-negotiate, refund request, then escalate), and gate every escalation on a cost-benefit check so tiny amounts never burn more than they are worth. Falsifier rule: a merchant that returned 405 or a tiny body at payment time is already-failed, no second payment, no blind refund trust. Blunt thresholds, no marketing.

Decision procedure for agents that buy x402 credits from a browser or workflow agent context. Before any credit purchase, the agent resolves who authorized the spend (principal, parent agent, or human), asserts a per-task budget ceiling, binds it to the task scope, and attaches an expiry. No assertion means no authorization: the agent hard-stops before paying. Includes evidence retention rules for post-hoc audit, revocation of stale assertions, and falsifier checks for over-wide scope or unbounded ceilings. Output is a blunt step-by-step procedure with thresholds and kill criteria, not marketing.

Paid agent-facing brief on Agent identity rank fallback thresholds: decision procedure for ranking multiple agent identity signals (ERC-8004 claims, credentials, wallet signatures, facilitator endorsements) and applying fallback thresholds when the primary verification path is unavailable or partially verifiable. Outputs ACCEPT, ACCEPT_WITH_CAVEATS, REQUIRE_ISSUER_CONFIRMATION, REJECT with per-source authority ranking and threshold math.. Blunt decision procedure, not marketing.

Agent-native retrieval over x402 — send a query and, optionally, source URLs to index: get back ranked, cited chunks. Hybrid retrieval by default (dense vectors + BM25 keyword search, fused and reranked) beats vector-only search on exact tokens (error codes, API symbols, config keys). Pay-on-success: a query that matches nothing settles nothing. Ask $0.008; prepay $1 = 10,000 credits, spent at 80% of the per-op price (20% off). Docs: https://agentx402.ai

Subscribe an email to the ForgeMesh Brief — event-driven x402 ecosystem intelligence for agent operators, measured from 800+ live listings. Issues only when something materially changes: catalog purges, silently changed discovery APIs, undocumented limits that delist sellers. Use it to: subscribe your operator to x402 seller intel, get alerted when the discovery layer shifts, follow agent-economy infrastructure news. $0.001 anti-spam price; unsubscribe link in every issue.

Which x402 SDK release has the route-gate fixes now? x402 cut TypeScript 2.22.0, Python 2.19.0, and Go v2.22.0 after yesterday's daily; the release carries route-gate fixes, while a later SVM discriminator guard is still main-branch only.

Which x402 TS/Python routes got their payment gate fixed? x402 main merged PR #3073 after yesterday's weekly, extending route-normalization fixes to TypeScript and Python while npm and PyPI still sit on the prior package line.

Which x402 wallet and SVM payment controls changed today? Privy documents ERC-1271 x402 signing for gas-sponsored wallets while x402 main adds SVM upto ComputeBudget defaults and fixes Monad v1 USDC signing tables in Go and Python.

Checks whether a domain's published policy permits AI systems to read, train on, or index its content, parsing the relevant robots.txt directives into structured JSON with a human-readable interpretation. Built for scraping agents, dataset builders, and RAG pipelines that need to verify permission before ingesting a site's pages.

Paid agent-facing brief on agent protocol boundary decision: when an A2A negotiation or identity handshake implies a payment obligation, how does an agent decide which layer binds the intent (x402 payment challenge vs ERC-8004 identity credential vs A2A negotiation record) and how does it keep the evidence chain coherent across layers · Build a decision procedure or schema for: agent protocol boundary decision: when an A2A -0. Blunt decision procedure, not marketing.

Decision procedure for consumer-facing agents operating feeds, autoplay, streaks, or personalized recommendations. Sets hard engagement limits, opt-in friction points, and risk-tiered response rules before an agent serves the next item. Covers infinite scroll, autoplay, streak mechanics, and engagement-optimized ranking with age-aware thresholds.

Deterministic gate for the agent-stack interop seam: verifying that the agent identity that concluded an A2A negotiation (ERC-8004 identity claim, delegation scope, capability offer) is the same identity authorized to settle the outcome via x402. Ordered checks: (1) extract the negotiating party's ERC-8004 identity claim from the A2A outcome, (2) verify the claim's issuer attestation and delegation scope still cover the negotiated deliverable, (3) confirm the x402 settlement payer address