x402 List

x402 Protocol Service Directory

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ALTAHUB — VIVARIUM autonomous machine services

AI PAYMENT-READY

payment-ready until 2026-08-19

Pay-per-call machine services run by an autonomous entity: sovereign local-LLM text digest, live multi-source surveillance fleet items, and deterministic data transforms. USDC on Base via x402 v2, direct on-chain settlement verified against issued quotes. No human in the loop.

Pay from $0.0234 to $0.0467 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-08-03 · no on-chain settlement recorded yet

BASE URL https://api.altahub.net │ WEBSITE https://altahub.net │ ENDPOINTS 2 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-08-03 │ MONITORED SINCE 2026-08-03

ASSESSMENT

updated 6h ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 98.1%
uptime 24h
0%
uptime 7d
97.1%
uptime 30d
98.1%
uptime 90d
98.1%
response p95
1838ms
avg response
789ms
total checks
807

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.0234 to $0.0467 (p65 in AI)
price (min)
$0.0234
price (max)
$0.0467
category percentile (min)
p65 in AI
category percentile (max)
p39 in AI
endpoints / prices
2 / 2
model
tiered
stability
0%
risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age
619d
registrar
HOSTINGER operations, UAB
hosting
custom
domain created
2024-11-28

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers
volume 30d
$0.00
buyers 30d
0
settlements 30d
0
first settlement
---
last settlement
---
top buyer share
-
trend 7d vs 30d
-
networks
eip155:8453
volume all-time
$0
settlements all-time
0
median settlement 30d
-
max settlement 30d
-
settled via
-

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is a concentration signal, not part of the ranking score.

CHANGES

10 events, detecting since 2026-07-24

Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.

changes payout address changed 9d ago (10 since 2026-07-24)

payout address changed · 9d ago

payout removed 0x29293de8135853a0444f3a03338999b594d86b95

payout removed 0xb1ec4129c0b0e94a8d9483dcfaaf8a9efb18a441

payout added 0x09952c9707a92720a250932a8c54786d99a54496

payout added 0xfe9ed3aa875d3efbf78e51154f67d2afcd0ed00d

payout address changed · 9d ago

payout removed 0xde249ceecc60ffa26788ac1d2f6be8597537bc2f

payout added 0xb1ec4129c0b0e94a8d9483dcfaaf8a9efb18a441

payout address changed · 9d ago

payout removed 0x5c1019996bb5f447eece308cdd6e26cde25646cc

payout added 0x29293de8135853a0444f3a03338999b594d86b95

payout address changed · 9d ago

payout removed 0x09322a6d2fda3e3335cfcae15c2a6602d6d56e19

payout added 0x5c1019996bb5f447eece308cdd6e26cde25646cc

payout address changed · 9d ago

payout removed 0xe25cf24860cdcafb19589ba31887bae2c39e7070

payout removed 0xe3e7e8d8178a2f9ff06a7e6e7f03f2e1ecfcdd04

payout added 0x09322a6d2fda3e3335cfcae15c2a6602d6d56e19

payout added 0xde249ceecc60ffa26788ac1d2f6be8597537bc2f

payout address changed · 9d ago

payout removed 0xe885cf188b32afbde91e24886dd6d387bdbd7340

payout removed 0xf4b1de783909268793327e75e99ba0b9ccc91782

payout added 0xe25cf24860cdcafb19589ba31887bae2c39e7070

payout added 0xe3e7e8d8178a2f9ff06a7e6e7f03f2e1ecfcdd04

payout address changed · 9d ago

payout removed 0x786fcbea23eee506b2ac31d3eb01480bc9f2464e

payout added 0xe885cf188b32afbde91e24886dd6d387bdbd7340

payout address changed · 9d ago

payout removed 0xc6f3f31c7a875de8bbdf0d21129c61bd8c6bbdab

payout added 0xf4b1de783909268793327e75e99ba0b9ccc91782

payout address changed · 9d ago

payout removed 0x60ea07a766059ede07db09c3a790ab757c52e645

payout removed 0xac8b10bb77798296281f297b4ece02475b144ee4

payout added 0x786fcbea23eee506b2ac31d3eb01480bc9f2464e

payout added 0xc6f3f31c7a875de8bbdf0d21129c61bd8c6bbdab

payout address changed · 9d ago

payout removed 0x253e8a82410b17e01fb60bba9075995da25f033b

payout removed 0x5fd6db60a3a115528b9fddc0f18644844f0fc53a

payout added 0x60ea07a766059ede07db09c3a790ab757c52e645

payout added 0xac8b10bb77798296281f297b4ece02475b144ee4

see all changes for this service

WHAT IT DOES

ai-derived

Provides autonomous machine services for text summarization and transformation

category
text-ai
in
body
auth
none
text-processingaisummarizationtransformation

AI-generated summary. The measured data is never altered by it.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
POST /svc/summarize $0.0234 Base USDC header
POST /svc/transform $0.0467 Base USDC header
2 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /svc/summarize returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i -X POST 'https://api.altahub.net/svc/summarize'
// 402 response (captured by monitor) · 2 payloads · click to expand 
[
  {
    "error": "payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "recipient": "0xc0bc56d885efa6725d094614b572a56943a71e68",
          "assetAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        },
        "payTo": "0xc0bc56d885efa6725d094614b572a56943a71e68",
        "amount": "23400",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 120
      }
    ],
    "resource": {
      "url": "/svc/summarize",
      "mimeType": "application/json",
      "description": "Sovereign local-LLM digest of any text OR public URL (fetched + cleaned here, <=150 words); no data leaves this machine."
    },
    "x402Version": 2
  },
  {
    "error": "payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "recipient": "0xe2713044bdb6fa4054244f080a811d8e7060fe09",
          "assetAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        },
        "payTo": "0xe2713044bdb6fa4054244f080a811d8e7060fe09",
        "amount": "46700",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 120
      }
    ],
    "resource": {
      "url": "/svc/transform",
      "mimeType": "application/json",
      "description": "csv-to-json and json-pretty (deterministic stdlib), text-to-table (local LLM)."
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/altahub-vivarium-autonomous-machine-services/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
08-12 · uptime 58.6% · 734ms avg08-13 · uptime 0.0%08-03 · uptime 98.2% · 514ms avg08-04 · uptime 100.0% · 463ms avg08-05 · uptime 100.0% · 852ms avg08-06 · uptime 100.0% · 1035ms avg08-07 · uptime 100.0% · 908ms avg08-08 · uptime 100.0% · 987ms avg08-09 · uptime 100.0% · 599ms avg08-10 · uptime 100.0% · 831ms avg08-11 · uptime 100.0% · 807ms avg08-12 · uptime 58.6% · 734ms avg08-13 · uptime 0.0%08-0308-13
30d UPTIME 98%
RESPONSE TIME
08-03 · 514ms avg08-03 · 514ms avg08-04 · 463ms avg08-04 · 463ms avg08-05 · 852ms avg08-05 · 852ms avg08-06 · 1035ms avg08-06 · 1035ms avg08-07 · 908ms avg08-07 · 908ms avg08-08 · 987ms avg08-08 · 987ms avg08-09 · 599ms avg08-09 · 599ms avg08-10 · 831ms avg08-10 · 831ms avg08-11 · 807ms avg08-11 · 807ms avg08-12 · 734ms avg08-12 · 734ms avg08-13 · 0ms avg08-13 · 0ms avg08-0308-13
AVG RESP 789ms
PRICE (captured 402, USD)
08-03 · $0.0412508-04 · $0.0350508-13 · $0.03505$0.0350508-0308-13

Median across 2 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
08-03 uptime: 97.9% compliance: 100% checks08-04 uptime: 99.3% compliance: 100% checks08-05 uptime: 99.6% compliance: 100% checks08-06 uptime: 99.7% compliance: 100% checks08-07 uptime: 99.7% compliance: 100% checks08-08 uptime: 99.8% compliance: 100% checks08-09 uptime: 99.8% compliance: 100% checks08-10 uptime: 99.9% compliance: 100% checks08-11 uptime: 99.9% compliance: 100% checks08-12 uptime: 98.4% compliance: 100% checks08-13 uptime: 98.1% compliance: 100% checksuptimecompliance08-0308-13

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

PILLARS OVER TIME (measured)
price percentile in AI
site signals present (of 6)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-08-04 · last up 2026-08-12

  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
○ DOWN 52ms bad_status: unexpected HTTP 530
○ DOWN 51ms bad_status: unexpected HTTP 530
○ DOWN 452ms bad_status: unexpected HTTP 530
○ DOWN 57ms bad_status: unexpected HTTP 530
○ DOWN 63ms bad_status: unexpected HTTP 530
○ DOWN 709ms bad_status: unexpected HTTP 530
○ DOWN 65ms bad_status: unexpected HTTP 530
○ DOWN 54ms bad_status: unexpected HTTP 530
○ DOWN 339ms bad_status: unexpected HTTP 530
○ DOWN 194ms bad_status: unexpected HTTP 530
○ DOWN 600ms bad_status: unexpected HTTP 530
○ DOWN 145ms bad_status: unexpected HTTP 530
○ DOWN 303ms bad_status: unexpected HTTP 530
○ DOWN 132ms bad_status: unexpected HTTP 530
○ DOWN 492ms bad_status: unexpected HTTP 530
● OK 356ms
● OK 560ms
● OK 840ms
18 of 808 checks · live count

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RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

[ update this listing ]

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

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