Sato Hub

x402 · merchants

crawlspur.halowerk.com

Base · payout 0x2880edfff13100677bf97a3cbdf3bc34771c4e5e

Answers HTTP 402

52 of 54 probed endpoints answered HTTP 402 with a parseable payment payload

checked 2026-10-05

Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.

221 x402-style payments from 13 distinct payers, $0.92 USDC in the last 7 days (Base, exact read)

window ended 2026-10-05

Payments
221
Outside payers
13
USDC
0.92

All USDC received at this payout address: $0.92 (includes payments that are not x402)

Method: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.

Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-05, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out

Delivery is not measured. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.

Chains · one payout address, each chain read on its own

ChainPayout addressListingsAnswers 402x402-style payments
Base0x2880edfff13100677bf97a3cbdf3bc34771c4e5e40452 of 54 probed endpoints answered HTTP 402 with a parseable payment payload
2026-10-05
221 x402-style payments from 13 distinct payers, $0.92 USDC in the last 7 days (Base, exact read)
Hosts
agent.halowerk.com, agri.halowerk.com, aialign.halowerk.com, audio.halowerk.com, bio.halowerk.com, buero.halowerk.com, crawlspur.halowerk.com, creator.halowerk.com, dep.halowerk.com, dns.halowerk.com, energy.halowerk.com, euroland.halowerk.com, fetch.halowerk.com, finanz.halowerk.com, formwerk.halowerk.com, fracht.halowerk.com, gaming.halowerk.com, geo.halowerk.com, gov.halowerk.com, handel.halowerk.com, ident.halowerk.com, intel.halowerk.com, iot.halowerk.com, ip.halowerk.com, kalender.halowerk.com, kalender.netzhandwerker.de, karte.halowerk.com, kette.halowerk.com, klima.halowerk.com, lauf.halowerk.com, mail.halowerk.com, mailcheck.netzhandwerker.de, markt.halowerk.com, material.halowerk.com, med.halowerk.com, medien.halowerk.com, modell.halowerk.com, natur.halowerk.com, netz.halowerk.com, news.netzhandwerker.de, nordland.halowerk.com, paket.halowerk.com, prop.halowerk.com, quantum.halowerk.com, research.halowerk.com, seo.halowerk.com, shot.halowerk.com, shot.netzhandwerker.de, sicher.halowerk.com, solar.halowerk.com, space.halowerk.com, stack.netzhandwerker.de, staking.halowerk.com, stat.halowerk.com, tempo.halowerk.com, tools.halowerk.com, vektor.halowerk.com, vektor.netzhandwerker.de, wetter.halowerk.com, x402.halowerk.com, zoll.halowerk.com
Listings
404 registered in the x402 catalogue
Price range
$0.0010 to $0.060 per call, as registered
Categories (auto)
Other (184), Web data (80), Developer tools (59), Identity (26), Media (21), Market data (10), Commerce (6), Inference (5), Onchain data (5), Agents (4), Security (3), Search (1)
First seen
2026-10-05 · last seen 2026-10-05

Claim this merchant

Sign a message from the payout address 0x2880ed…1c4e5e to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.

Registrations · 404

EndpointChainCategoryPriceCatalogue date
https://geo.halowerk.com/v1/geohash
Encodes a coordinate as geohash or decodes a geohash to its bounding box. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values d…
BaseOther$0.0032026-09-12
https://geo.halowerk.com/v1/h3-cell
Creates or inspects H3 cells and optionally returns neighbors or changes resolution. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-back…
BaseOther$0.0032026-09-19
https://gov.halowerk.com/v1/delegate-alignment
Joins caller-supplied vote vectors by proposal ID, encodes against/abstain/for as -1/0/1, and computes weighted cosine similarity plus exact agreement. It describes only supplied overlapping votes and does not infer ide…
BaseOther$0.0032026-09-15
https://gov.halowerk.com/v1/proposal-summary
Splits caller-supplied proposal text into sentences, scores each sentence by normalized non-stopword frequency, and returns the highest-scoring sentences in source order. It does not infer unstated intent, verify claims…
BaseDeveloper tools$0.0032026-10-02
https://iot.halowerk.com/v1/battery-degradation
Applies a transparent heuristic: cycle fade scales with equivalent full cycles and depth-of-discharge exponent; calendar fade scales with square-root time and a temperature factor. Coefficients are caller supplied or de…
BaseOther$0.0032026-09-14
https://iot.halowerk.com/v1/lora-coverage
Computes free-space loss at one metre, applies a caller-supplied path-loss exponent over distance, then reports estimated receive power and margin against receiver sensitivity. This planning estimate does not model terr…
BaseOther$0.0032026-09-19
https://iot.halowerk.com/v1/ota-sign
Canonicalizes firmware hash, version, device model and minimum bootloader version, then produces a SHA-256 manifest digest and HMAC-SHA256 release tag using caller-supplied ephemeral key material. This is a symmetric in…
BaseDeveloper tools$0.0032026-09-14
https://klima.halowerk.com/v1/electricity-co2
Calculates location- or market-based electricity emissions from a published grid factor. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-…
BaseOther$0.0032026-09-28
https://klima.halowerk.com/v1/emission-factor
Selects a published emissions factor by activity, region and source edition. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed value…
BaseOther$0.0032026-10-02
https://modell.halowerk.com/v1/drift-check
Compares two submitted sample sets feature by feature and returns deterministic drift metrics. Continuous features are binned on the combined value range and receive PSI, Jensen-Shannon divergence and a Kolmogorov-Smirn…
BaseOther$0.0032026-09-14
https://nordland.halowerk.com/v1/dk-elevation
Bilinear surface elevation from Copernicus DEM GLO-30. The coordinate is validated against the Natural Earth boundary for Denmark; results outside it are rejected before payment.
BaseOther$0.0032026-09-06
https://paket.halowerk.com/v1/artifact-hash
Takes a file digest and answers which released package version it is. Useful for an artefact found in a container layer, a build directory or an attachment with no metadata attached. Hex and base64 input are both accept…
BaseDeveloper tools$0.0032026-09-19
https://paket.halowerk.com/v1/package-versions
Returns the full version history of a package from a single normalised schema that covers seven ecosystems. Versions are ordered by semantic version, not alphabetically and not in registry order, so 1.10.0 sorts after 1…
BaseDeveloper tools$0.0032026-09-14
https://prop.halowerk.com/v1/foot-traffic-retail
Compares supplied visits, mean dwell time and conversions with explicit baselines and combines the three ratios using caller-supplied weights. It does not collect location data, count people, infer demographics or forec…
BaseOther$0.0032026-09-23
https://prop.halowerk.com/v1/yield-forecast
Compounds supplied rent and expense growth assumptions, applies vacancy and collection loss, subtracts operating expenses and capital reserve, and divides net operating income by a caller-supplied property value. This i…
BaseOther$0.0032026-09-19
https://solar.halowerk.com/low-wattage-cooking
Uses rated electrical power, food mass, start and target temperature, specific heat and an explicit efficiency range supplied by the caller. Optional vessel heat, evaporation and a caller-defined hold phase can be inclu…
BaseOther$0.0032026-09-19
https://space.halowerk.com/v1/crop-yield-ndvi
Computes mean NDVI and an ordinary least-squares daily NDVI trend, then applies yield = intercept + mean_coefficient×mean_NDVI + trend_coefficient×daily_trend. It does not derive NDVI from imagery, account for crop stag…
BaseMedia$0.0032026-10-02
https://space.halowerk.com/v1/dark-fleet-detect
Combines caller-supplied AIS gap duration, unmatched satellite detections, night-observation fraction, and position discrepancy into a bounded score. It does not identify a vessel, link detections, establish illegal act…
BaseOther$0.0032026-09-18
https://stack.netzhandwerker.de/stack
One HTTP request per host, matched against an in-house signature set. Every hit carries a confidence value from 0 to 100 and the evidence it rests on: response header, asset path, cookie name, meta generator, DNS or ASN…
BaseIdentity$0.0032026-10-05
https://x402.halowerk.com/facilitator/health
Asks every known facilitator what it supports and measures how long that answer takes. Reachability, supported chains, supported assets, supported schemes and the current response time are measured live on every call. L…
BaseOther$0.0032026-09-12
https://zoll.halowerk.com/v1/dual-use
Matches declared classification tokens against a supplied published dual-use control list. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; sourc…
BaseInference$0.0032026-10-02
https://agri.halowerk.com/v1/drone-spray-path
Builds parallel passes over an axis-aligned rectangle using supplied swath width and overlap, alternating travel direction to reduce deadhead distance. Coordinates are in caller-supplied local units. It does not use map…
BaseCommerce$0.0042026-09-22
https://agri.halowerk.com/v1/fertilizer-map
For each field cell, subtracts measured available nutrient from a supplied target and divides positive deficits by an explicit recovery fraction. It reports per-hectare rates and area totals. It does not infer crop targ…
BaseOther$0.0042026-09-22
https://aialign.halowerk.com/v1/bias-audit
Calculates each group positive-outcome rate, compares it with an explicit or automatically selected reference group, and reports rate differences and selection-rate ratios. Aggregate disparity metrics do not establish d…
BaseDeveloper tools$0.0042026-10-02
https://bio.halowerk.com/v1/allergen-epitope
Builds amino-acid k-mer sets, calculates Jaccard similarity, and finds the highest contiguous identity between each supplied epitope and any equal-length window of the query. It does not predict immune binding, allergen…
BaseDeveloper tools$0.0042026-09-19
https://bio.halowerk.com/v1/crispr-offtarget
Compares one guide with caller-supplied candidate protospacers, weights mismatches in the guide’s final ten positions twice, applies a simple NGG PAM penalty, and ranks a transparent similarity score. It does not search…
BaseOther$0.0042026-09-20
https://buero.halowerk.com/v1/doc-merge
Takes three documents — the common base and the two versions derived from it — as text, public URLs or inline base64, reads PDF, DOCX, ODT, HTML and Markdown, and returns one merged document. The procedure is diff3 over…
BaseMedia$0.0042026-09-14
https://creator.halowerk.com/v1/ad-placement-opt
Sorts caller-supplied placement opportunities by end time and solves the weighted non-overlapping interval problem exactly with dynamic programming. It does not buy inventory, predict conversion, enforce platform policy…
BaseOther$0.0042026-10-02
https://dep.halowerk.com/v1/alternative-packages
Ranks supplied alternative packages against explicit requirement weights. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values d…
BaseDeveloper tools$0.0042026-10-02
https://dep.halowerk.com/v1/dependency-depth
Calculates reachable transitive dependency count and maximum depth from a supplied graph. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source…
BaseDeveloper tools$0.0042026-09-27
https://dep.halowerk.com/v1/install-footprint
Totals caller-measured installed file sizes and file counts. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose sourc…
BaseOther$0.0042026-09-12
https://dep.halowerk.com/v1/maintainer-concentration
Measures the share held by the largest maintainer from supplied ownership weights. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed…
BaseOther$0.0042026-09-12
https://dep.halowerk.com/v1/registry-health
Summarizes caller-supplied registry observations and withdrawal history. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values di…
BaseInference$0.0042026-09-12
https://dep.halowerk.com/v1/release-cadence
Calculates release intervals and inactivity from current registry timestamps. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed valu…
BaseDeveloper tools$0.0042026-09-12
https://dep.halowerk.com/v1/typosquat-proximity
Ranks edit-distance proximity between a candidate name and supplied popular package names. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; sourc…
BaseSecurity$0.0042026-09-12
https://finanz.halowerk.com/v1/bitcoin-fee-forecast
Returns the current fee rates for the usual confirmation targets together with the state of the mempool behind them, and then does the part that is usually missing: it estimates the virtual size of the transaction you d…
BaseOnchain data$0.0042026-10-02
https://fracht.halowerk.com/v1/bl-parse
Separates common bill-of-lading and air-waybill reference components. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values discl…
BaseDeveloper tools$0.0042026-10-02
https://fracht.halowerk.com/v1/dangerous-goods
Returns a supplied published dangerous-goods record for a UN number and exposes missing fields. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; …
BaseOther$0.0042026-09-26
https://fracht.halowerk.com/v1/leg-split
Validates and orders caller-supplied multimodal shipment legs. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose sou…
BaseDeveloper tools$0.0042026-09-12
https://fracht.halowerk.com/v1/package-dims
Calculates volume, girth and chargeable weight from package dimensions. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values dis…
BaseDeveloper tools$0.0042026-09-12
https://fracht.halowerk.com/v1/port-pair
Estimates great-circle port distance and sailing time from supplied port coordinates and speed. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; …
BaseOther$0.0042026-09-12
https://fracht.halowerk.com/v1/tracking-parse
Matches a shipment reference against caller-supplied carrier patterns. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disc…
BaseDeveloper tools$0.0042026-09-12
https://gaming.halowerk.com/v1/anti-cheat-scan
Evaluates caller-supplied telemetry samples against declared reaction-time, actions-per-second, movement-speed, and impossible-event rules. Flags are review signals only; the service does not identify software, inspect …
BaseOther$0.0042026-10-02
https://gaming.halowerk.com/v1/cross-game-bridge
Applies caller-supplied rename and numeric scale/offset rules to scalar attributes, optionally retaining unmapped fields, then hashes the canonical mapped payload. It does not transfer ownership, call a chain, validate …
BaseOnchain data$0.0042026-09-17
https://geo.halowerk.com/v1/bbox-tiles
Enumerates XYZ tile coordinates intersecting a WGS84 bounding box. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose…
BaseOther$0.0042026-09-28
https://geo.halowerk.com/v1/distance-bearing
Calculates WGS84 great-circle distance and initial bearing. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source…
BaseDeveloper tools$0.0042026-09-29
https://geo.halowerk.com/v1/line-simplify
Simplifies a planar line with the Ramer-Douglas-Peucker algorithm. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose…
BaseOther$0.0042026-09-12
https://geo.halowerk.com/v1/point-in-polygon
Tests planar point containment with the even-odd rule. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, tim…
BaseDeveloper tools$0.0042026-09-12
https://geo.halowerk.com/v1/polygon-ops
Calculates planar polygon area and centroid in caller-declared coordinate units. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed v…
BaseDeveloper tools$0.0042026-09-12
https://geo.halowerk.com/v1/s2-cell
Creates an S2 cell token from a coordinate and level using the S2 geometry library. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backe…
BaseOther$0.0042026-09-12

Descriptions are the seller’s own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.

Data CC-BY-4.0, attribution: data by satohub.ai. Collector run 2026-10-05. Appearing here is not an endorsement. Check an endpoint with the doctor.