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Open ERC-20/Permit2 allowances for an address (Class-F decoded facts) with a per-row approval-risk band (shadow heuristic): unlimited to a flagged/unknown spender is the #1 drain vector.

Per-address Class-F compliance facts (M4) on ONE chain, plus the OFAC SDN flag.

The §8 taint-exposure verdict for an address: a bounded backward BFS over the value graph to the nearest OFAC-sanctioned or hack/drainer/mixer root, returning a class (sanctioned|direct|indirect|negligible|unknown|none), nearest-hop, and a value-proportional haircut fraction.

The unified risk verdict for an address (§9 R2): a single tier (unknown|none|low|medium|high|severe) aggregating decoded FACTS (OFAC listing, issuer freeze/seize, exposure to a sanctioned/hack root) and ATTRIBUTED labels (with provenance, capped at medium alone; a lone-source accusation contributes no tier).

Recent stablecoin transfers on ONE chain (newest first), filterable by recipient/payer, cursor-paginated (next_cursor).

OFAC SDN sanction-list coverage: how many EVM + Solana + Tron addresses are ingested (free public 0xB10C list, US-Gov public-domain data) and when it was last refreshed.

Data freshness for one chain: the indexer's head, safe and finalized blocks, its lag in blocks and freshness_seconds, so the agent knows how recent the data behind an answer is.

Bounded walk over the indexed stablecoin settlement flow graph from a wallet: payer<->recipient hops, value-weighted score, entity-aware node keys, attributed-node stop option, and sanctioned-node markers.

Open ERC-20/Permit2 allowances for an address (Class-F decoded facts) with a per-row approval-risk band (shadow heuristic): unlimited to a flagged/unknown spender is the #1 drain vector.

Per-address Class-F compliance facts (M4) on ONE chain, plus the OFAC SDN flag.

The §8 taint-exposure verdict for an address: a bounded backward BFS over the value graph to the nearest OFAC-sanctioned or hack/drainer/mixer root, returning a class (sanctioned|direct|indirect|negligible|unknown|none), nearest-hop, and a value-proportional haircut fraction.

The unified risk verdict for an address (§9 R2): a single tier (unknown|none|low|medium|high|severe) aggregating decoded FACTS (OFAC listing, issuer freeze/seize, exposure to a sanctioned/hack root) and ATTRIBUTED labels (with provenance, capped at medium alone; a lone-source accusation contributes no tier).

Recent stablecoin transfers on ONE chain (newest first), filterable by recipient/payer, cursor-paginated (next_cursor).

OFAC SDN sanction-list coverage: how many EVM + Solana + Tron addresses are ingested (free public 0xB10C list, US-Gov public-domain data) and when it was last refreshed.

Data freshness for one chain: the indexer's head, safe and finalized blocks, its lag in blocks and freshness_seconds, so the agent knows how recent the data behind an answer is.

Bounded walk over the indexed stablecoin settlement flow graph from a wallet: payer<->recipient hops, value-weighted score, entity-aware node keys, attributed-node stop option, and sanctioned-node markers.

Active-wallet KPI board: distinct active agents (payers) and services (recipients) over rolling 1d/7d/30d (DAW/WAW/MAW), a stickiness ratio (DAW/MAW), and ecosystem-wide payer concentration (HHI/Gini/top-1).

Top-by-volume active services RE-RANKED by a HEURISTIC adoption-momentum score (blend of period-over-period volume growth, active-buyer growth, and retention over equal windows; dust/inactive excluded).

Ticket-size distribution: settlement count and value in each fixed USD band (<$0.01 … ≥$1,000) over a window — the 'ticket-size migration' cut.

Active-participant breadth over time: per-day distinct active agents (payers) and services (recipients) + window-distinct totals.

Buyer growth over a window: per-day new vs returning vs active buyers, plus window totals and pct_new.

Settlement-volume share by service category OVER TIME (per-day + window totals) — how category mix shifts.

The x402 service catalog broken down by heuristic category (data-api|inference|search|storage|agent-to-agent|infra|other): resource count, reachable count, and 30d calls per category.

Cross-chain settlement split OVER TIME: each mainnet chain's share of x402 volume per time bucket + window totals.

Weekly retention triangle: per first-seen-week cohort, active-buyer count and retention % at each later week.

Payer/recipient concentration surface: ecosystem HHI/Gini/top-1 share plus the top-N entities with their volume share and running cumulative share (Lorenz view).

Multi-chain x402 ecosystem headline: per-chain tx/volume (gross + normalized) + totals, plus period-over-period growth (growth_pct vs the prior equal window), a heuristic surge flag, USD-basis reliability, and history_start.

A facilitator's market share OVER TIME: per-bucket volume + two D8 denominators — share_of_attributed_pct (of known-facilitator volume; NOT true market share) and coverage_of_ecosystem_pct (of ALL settlements, the honest figure), plus window totals.

Fund-flow Sankey: value routed payer -> facilitator -> recipient-category over a window (nodes + weighted links).

Louvain communities (graph engine): top-N densely-connected clusters in the x402 value-flow graph (weighted by tx_count), each with member/edge/tx/volume aggregates, x402 penetration, and top members by PageRank.

Weekly New/Retained/Resurrected/Churned decomposition of the active-buyer base + quick_ratio + stickiness.

Shortest directed settlement path from one wallet to another over the entity-aware x402 graph (reconstructed origin, relay legs excluded, D5).

Current headline-price distribution per service category + chain (min/median/p90/max in USDC minor units).

Pulse of the x402 ecosystem over a window: total settlement tx count, volume (minor units string), approx unique payers, and active servers.

Recent x402 settlement facts (newest first), filterable by recipient/payer/facilitator, cursor-paginated.

Full detail for one x402 service by id or URL: headline price + per-network prices[], accepted networks, the raw x402 `accepts` payment schema, recipients (payTo), 30d usage, and health (uptime, p50/p95 latency).

Two-tier resource assessment (TZ §9): a metrics tier of deterministic facts (breadth, top1 share, repeat-payer %, settled volume, price-vs-category, liveness, sanctions exposure) and a signals tier of heuristic detector outputs with confidence/evidence, plus a deterministic verdict over the signals (sanctions-direct -> high_risk; wash AND sybil -> suspect; any shadow signal -> watch; else clean).

Per-resource pricing: listed price vs effective settled p50/p75/p90 USDC amounts to the resource's recipients (reconstructed origin, relay legs excluded, D5), an overpay_ratio (p50_effective/listed), the category listed-price median, and a daily effective-price history.

Revenue cut for the x402 ecosystem: settlement volume by service category (what services earned, durable) plus the observable relay-hub take-rate.

Per-category revenue split into heuristic organic vs suspect buckets using payer concentration (a category is 'suspect' when HHI>=0.4 or top-payer>=60%).

Services (recipients) ranked by settlement volume (gross, relay legs excluded) or tx_count over a window, each tagged with its heuristic category.

OFAC SDN sanction-list coverage: how many EVM + Solana addresses are ingested (free public 0xB10C list, US-Gov public-domain data) and when it was last refreshed.

Seed-rooted outflow Sankey over the entity-aware x402 graph (reconstructed origin, relay legs excluded, D5), laid out by hop layer with a coverage_pct (share of the seed's direct outflow captured by the first layer).

Ranked payer breakdown for one x402 service with top1/top5/HHI/Gini concentration over the durable edge rollup (reconstructed origin, relay legs excluded, D5).

Reputation/trust signals for an x402 server before paying it: total tx, volume, account age, days active, peak daily unique payers, payer concentration (HHI/Gini/top-1 share), and risk_flags (young_account, inactive, single_payer_dominant, high_concentration).

God-Mode view of one x402 service in a single call: reputation (trust signals + concentration + risk flags), top paying agents, catalogued resources, and a heuristic organic_score (0..1 from the risk flags — a quick trust hint, not a verdict).

Top buyers over a window with heuristic labels (whale/diverse/loyal/early_adopter/one_shot) + unique-seller breadth + first-seen.

The State of x402 flagship briefing in one call: headline (gross vs normalized volume + coverage), growth accounting, ticket migration, category mix, facilitator rails, breadth, retention, payer/recipient concentration, and a shadow risk roll-up (wash/sybil candidates + sanctions coverage).

Sybil clustering (heuristic): common-funder fan-out clusters over the FUNDING graph (funding_edges) — a funder is an address's FIRST x402 funder (in-index approximation of a gas funder, NG2/NG5); funders that first-funded >= min_fanout distinct addresses, merged into connected components via funding chains.

Indexer freshness (per chain) so an agent knows how recent the data is: head/finalized block, lag, freshness seconds.

Ticket-size stats for a window: avg_ticket (durable, over the full window) plus median/p90/p99 from per-tx amounts in the HOT window only (percentile_window, since raw transfers age out), and a heuristic speculative_noise flag (dust-dominated distribution).

Leaderboard of x402 buyers (payers/agents) by spend in a window: address, tx count, volume, unique sellers paid.

Leaderboard of x402 resource servers (recipients) by volume in a window.

A wallet's Louvain community + centrality (PageRank/degree) in the x402 value-flow graph, plus the community summary and top co-members.

P1 entity-resolution view for one wallet: deterministic heuristic entity_id, entity_size, facilitator-side flag, roles, and capped members from x402-scoped cluster_links.

OFAC indirect-exposure check: bounded BFS over the x402 settlement graph from a wallet to the nearest sanctioned node — returns exposure (sanctioned|direct|indirect|none), min_hops, and the flagged nodes reached with value direction.

Bounded x402 settlement graph walk from a wallet: payer<->recipient hops, value-weighted score, entity-aware node keys, attributed-node stop option, and sanctioned-node markers.

Unified wallet risk signals: wash/inflation detector vectors from inflation_signals using the shared signal envelope (code, confidence, evidence, ruleset_version, mode, data_vintage).

Ego subgraph around a wallet on the x402 settlement graph: walked nodes, entity-level edges, and stored laundering-shape motif hits (consolidation/layering/peel_chain/scatter_gather) unified into existing signals through maps_to.

Wash / self-dealing detection: reciprocal round-tripping (A<->B) over the settlement graph — top pairs by round-trip volume + reciprocity, and reciprocal_share_pct (the wash-adjusted share of ecosystem volume bouncing between pairs).

Active x402 facilitators and their market share (tx count, volume, share %) in a window.

Discover x402 services to pay.

Confirm whether a transaction settled an x402 payment.