x402 List

x402 Protocol Service Directory

true402

AI PAYMENT-READY

payment-ready until 2026-08-18

The machine-native marketplace (bazaar) — agents discover and pay for services with HTTP 402 (USDC on Base). No accounts, no API keys; the wallet is identity. Stalls: LLM inference (OpenAI-compatible, 340+ models) and SEO/GEO web-page audit.

Pay from $0.0001 to $0.02 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

first settlement 2026-06-08 · $0.28 all-time · settled via openfacilitator

BASE URL https://true402.dev/api WEBSITE https://true402.dev ENDPOINTS 2 NETWORK Base ASSET USDC MEMBER SINCE 2026-06-01 MONITORED SINCE 2026-06-01

ASSESSMENT

updated 4h ago

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

reliability 99.1%
uptime 24h
0%
uptime 7d
96.4%
uptime 30d
99.1%
uptime 90d
99.6%
response p95
983ms
avg response
504ms
total checks
2,591

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

compliance A (13/13)

13 of 13 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.0001 to $0.02 (p2 in AI)
price (min)
$0.0001
price (max)
$0.02
category percentile (min)
p2 in AI
category percentile (max)
p31 in AI
endpoints / prices
2 / 2
model
tiered
stability
100%
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
72d
registrar
Tucows Domains Inc
hosting
custom
domain created
2026-05-30

Identity facts, not a risk score.

traction $0.14 30d · 2 buyers
volume 30d
$0.14
buyers 30d
2
settlements 30d
16
first settlement
2026-06-08
last settlement
2026-08-04
top buyer share
86% of 30d volume
trend 7d vs 30d
0.00x the 30d daily rate
networks
eip155:8453
volume all-time
$0.28
settlements all-time
43
median settlement 30d
$0.0065
max settlement 30d
$0.04
settled via
openfacilitator ($0.14, 16 tx)

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.

WHAT IT DOES

ai-derived

Provides AI chat completions and SEO audit services through an API marketplace

category
ai-marketplace
in
body
auth
none
aichatseoweb-extractlink-previewscreenshotquantfinance

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
GET /v1/chat/completions $0.0001 Base USDC header
GET /v1/seo-audit $0.02 Base USDC -
2 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /v1/chat/completions returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://true402.dev/api/v1/chat/completions'
// 402 response (captured by monitor) · 1 payload · click to expand
[
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xFe257Ef6Dc89F5b688aC52Ef3eb8648C629fA9C4",
        "amount": "100",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://true402.dev/api/v1/chat/completions",
      "mimeType": "application/json",
      "description": "LLM inference (send a chat request to receive an exact quote)",
      "serviceName": "true402"
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 90d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/true402/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
08-11 · uptime 86.8% · 512ms avg08-12 · uptime 0.0%08-13 · uptime 0.0%06-01 · uptime 100.0% · 172ms avg06-02 · uptime 100.0% · 229ms avg06-03 · uptime 100.0% · 237ms avg06-04 · uptime 100.0% · 282ms avg06-05 · uptime 100.0% · 333ms avg06-06 · uptime 100.0% · 268ms avg06-07 · uptime 100.0% · 240ms avg06-08 · uptime 100.0% · 315ms avg06-09 · uptime 100.0% · 312ms avg06-10 · uptime 100.0% · 314ms avg06-11 · uptime 100.0% · 305ms avg06-12 · uptime 100.0% · 223ms avg06-13 · uptime 100.0% · 192ms avg06-14 · uptime 100.0% · 180ms avg06-15 · uptime 100.0% · 190ms avg06-16 · uptime 100.0% · 287ms avg06-17 · uptime 100.0% · 386ms avg06-18 · uptime 98.9% · 515ms avg06-19 · uptime 100.0% · 503ms avg06-20 · uptime 97.8% · 422ms avg06-21 · uptime 100.0% · 395ms avg06-22 · uptime 100.0% · 449ms avg06-23 · uptime 100.0% · 512ms avg06-24 · uptime 100.0% · 450ms avg06-25 · uptime 100.0% · 313ms avg06-26 · uptime 100.0% · 349ms avg06-27 · uptime 100.0% · 237ms avg06-28 · uptime 98.9% · 242ms avg06-29 · uptime 100.0% · 293ms avg06-30 · uptime 100.0% · 272ms avg07-01 · uptime 100.0% · 463ms avg07-02 · uptime 100.0% · 338ms avg07-03 · uptime 100.0% · 321ms avg07-04 · uptime 100.0% · 222ms avg07-05 · uptime 100.0% · 276ms avg07-06 · uptime 100.0% · 351ms avg07-07 · uptime 100.0% · 349ms avg07-08 · uptime 100.0% · 357ms avg07-09 · uptime 100.0% · 270ms avg07-10 · uptime 100.0% · 237ms avg07-11 · uptime 100.0% · 373ms avg07-12 · uptime 100.0% · 480ms avg07-13 · uptime 100.0% · 365ms avg07-14 · uptime 100.0% · 433ms avg07-15 · uptime 100.0% · 319ms avg07-16 · uptime 100.0% · 494ms avg07-17 · uptime 100.0% · 418ms avg07-18 · uptime 100.0% · 328ms avg07-19 · uptime 100.0% · 286ms avg07-20 · uptime 100.0% · 350ms avg07-21 · uptime 100.0% · 401ms avg07-22 · uptime 100.0% · 338ms avg07-23 · uptime 100.0% · 405ms avg07-24 · uptime 100.0% · 418ms avg07-25 · uptime 98.9% · 391ms avg07-26 · uptime 98.9% · 475ms avg07-27 · uptime 100.0% · 513ms avg07-28 · uptime 98.9% · 544ms avg07-29 · uptime 100.0% · 505ms avg07-30 · uptime 100.0% · 730ms avg07-31 · uptime 97.8% · 686ms avg08-01 · uptime 100.0% · 757ms avg08-02 · uptime 100.0% · 757ms avg08-03 · uptime 100.0% · 724ms avg08-04 · uptime 100.0% · 711ms avg08-05 · uptime 100.0% · 590ms avg08-06 · uptime 98.9% · 465ms avg08-07 · uptime 100.0% · 423ms avg08-08 · uptime 100.0% · 495ms avg08-09 · uptime 100.0% · 547ms avg08-10 · uptime 100.0% · 621ms avg08-11 · uptime 86.8% · 512ms avg08-12 · uptime 0.0%08-13 · uptime 0.0%06-0108-13
90d UPTIME 99.6%
RESPONSE TIME
06-01 · 172ms avg06-01 · 172ms avg06-02 · 229ms avg06-02 · 229ms avg06-03 · 237ms avg06-03 · 237ms avg06-04 · 282ms avg06-04 · 282ms avg06-05 · 333ms avg06-05 · 333ms avg06-06 · 268ms avg06-06 · 268ms avg06-07 · 240ms avg06-07 · 240ms avg06-08 · 315ms avg06-08 · 315ms avg06-09 · 312ms avg06-09 · 312ms avg06-10 · 314ms avg06-10 · 314ms avg06-11 · 305ms avg06-11 · 305ms avg06-12 · 223ms avg06-12 · 223ms avg06-13 · 192ms avg06-13 · 192ms avg06-14 · 180ms avg06-14 · 180ms avg06-15 · 190ms avg06-15 · 190ms avg06-16 · 287ms avg06-16 · 287ms avg06-17 · 386ms avg06-17 · 386ms avg06-18 · 515ms avg06-18 · 515ms avg06-19 · 503ms avg06-19 · 503ms avg06-20 · 422ms avg06-20 · 422ms avg06-21 · 395ms avg06-21 · 395ms avg06-22 · 449ms avg06-22 · 449ms avg06-23 · 512ms avg06-23 · 512ms avg06-24 · 450ms avg06-24 · 450ms avg06-25 · 313ms avg06-25 · 313ms avg06-26 · 349ms avg06-26 · 349ms avg06-27 · 237ms avg06-27 · 237ms avg06-28 · 242ms avg06-28 · 242ms avg06-29 · 293ms avg06-29 · 293ms avg06-30 · 272ms avg06-30 · 272ms avg07-01 · 463ms avg07-01 · 463ms avg07-02 · 338ms avg07-02 · 338ms avg07-03 · 321ms avg07-03 · 321ms avg07-04 · 222ms avg07-04 · 222ms avg07-05 · 276ms avg07-05 · 276ms avg07-06 · 351ms avg07-06 · 351ms avg07-07 · 349ms avg07-07 · 349ms avg07-08 · 357ms avg07-08 · 357ms avg07-09 · 270ms avg07-09 · 270ms avg07-10 · 237ms avg07-10 · 237ms avg07-11 · 373ms avg07-11 · 373ms avg07-12 · 480ms avg07-12 · 480ms avg07-13 · 365ms avg07-13 · 365ms avg07-14 · 433ms avg07-14 · 433ms avg07-15 · 319ms avg07-15 · 319ms avg07-16 · 494ms avg07-16 · 494ms avg07-17 · 418ms avg07-17 · 418ms avg07-18 · 328ms avg07-18 · 328ms avg07-19 · 286ms avg07-19 · 286ms avg07-20 · 350ms avg07-20 · 350ms avg07-21 · 401ms avg07-21 · 401ms avg07-22 · 338ms avg07-22 · 338ms avg07-23 · 405ms avg07-23 · 405ms avg07-24 · 418ms avg07-24 · 418ms avg07-25 · 391ms avg07-25 · 391ms avg07-26 · 475ms avg07-26 · 475ms avg07-27 · 513ms avg07-27 · 513ms avg07-28 · 544ms avg07-28 · 544ms avg07-29 · 505ms avg07-29 · 505ms avg07-30 · 730ms avg07-30 · 730ms avg07-31 · 686ms avg07-31 · 686ms avg08-01 · 757ms avg08-01 · 757ms avg08-02 · 757ms avg08-02 · 757ms avg08-03 · 724ms avg08-03 · 724ms avg08-04 · 711ms avg08-04 · 711ms avg08-05 · 590ms avg08-05 · 590ms avg08-06 · 465ms avg08-06 · 465ms avg08-07 · 423ms avg08-07 · 423ms avg08-08 · 495ms avg08-08 · 495ms avg08-09 · 547ms avg08-09 · 547ms avg08-10 · 621ms avg08-10 · 621ms avg08-11 · 512ms avg08-11 · 512ms avg08-12 · 0ms avg08-12 · 0ms avg08-13 · 0ms avg08-13 · 0ms avg06-0108-13
AVG RESP 504ms
PRICE (captured 402, USD)
06-07 · $0.0206-16 · $0.0100508-13 · $0.01005$0.0100506-0708-13

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

SUB-SCORES (uptime + x402 compliance)
07-13 uptime: 99.9% compliance: 92% checks07-14 uptime: 99.8% compliance: 92% checks07-15 uptime: 99.8% compliance: 92% checks07-16 uptime: 99.8% compliance: 92% checks07-17 uptime: 99.9% compliance: 100% checks07-18 uptime: 99.9% compliance: 100% checks07-19 uptime: 99.9% compliance: 100% checks07-20 uptime: 100.0% compliance: 100% checks07-21 uptime: 100.0% compliance: 100% checks07-22 uptime: 100.0% compliance: 100% checks07-23 uptime: 100.0% compliance: 100% checks07-24 uptime: 100.0% compliance: 100% checks07-25 uptime: 99.9% compliance: 100% checks07-26 uptime: 99.9% compliance: 100% checks07-27 uptime: 99.9% compliance: 100% checks07-28 uptime: 99.9% compliance: 100% checks07-29 uptime: 99.9% compliance: 100% checks07-30 uptime: 99.9% compliance: 100% checks07-31 uptime: 99.8% compliance: 100% checks08-01 uptime: 99.8% compliance: 100% checks08-02 uptime: 99.8% compliance: 100% checks08-03 uptime: 99.8% compliance: 100% checks08-04 uptime: 99.8% compliance: 100% checks08-05 uptime: 99.8% compliance: 100% checks08-06 uptime: 99.8% compliance: 100% checks08-07 uptime: 99.8% compliance: 100% checks08-08 uptime: 99.8% compliance: 100% checks08-09 uptime: 99.8% compliance: 100% checks08-10 uptime: 99.8% compliance: 100% checks08-11 uptime: 99.4% compliance: 100% checks08-12 uptime: 99.3% compliance: 100% checks08-13 uptime: 99.1% compliance: 100% checksuptimecompliance07-1308-13

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

PILLARS OVER TIME (measured)

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)
06-08 · $0.0006-19 · $0.0006-20 · $0.0706-21 · $0.0006-28 · $0.0107-03 · $0.0407-12 · $0.0207-16 · $0.0107-18 · $0.0207-19 · $0.0507-25 · $0.0207-28 · $0.0107-30 · $0.0008-03 · $0.0108-04 · $0.02peak $0.0706-0808-04
DISTINCT BUYERS
06-08 · 1 buyer06-19 · 1 buyer06-20 · 1 buyer06-21 · 1 buyer06-28 · 1 buyer07-03 · 1 buyer07-12 · 1 buyer07-16 · 1 buyer07-18 · 1 buyer07-19 · 1 buyer07-25 · 1 buyer07-28 · 1 buyer07-30 · 1 buyer08-03 · 1 buyer08-04 · 1 buyerpeak 1 buyer06-0808-04

COMPLIANCE

13/13 checks pass · grade A

last 402 captured 2026-06-16 · last up 2026-08-11

  • 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 186ms bad_status: unexpected HTTP 405
○ DOWN 160ms bad_status: unexpected HTTP 405
○ DOWN 242ms bad_status: unexpected HTTP 405
○ DOWN 76ms bad_status: unexpected HTTP 405
○ DOWN 148ms bad_status: unexpected HTTP 405
○ DOWN 439ms bad_status: unexpected HTTP 405
○ DOWN 152ms bad_status: unexpected HTTP 405
○ DOWN 392ms bad_status: unexpected HTTP 405
○ DOWN 141ms bad_status: unexpected HTTP 405
○ DOWN 155ms bad_status: unexpected HTTP 405
○ DOWN 438ms bad_status: unexpected HTTP 405
○ DOWN 360ms bad_status: unexpected HTTP 405
○ DOWN 283ms bad_status: unexpected HTTP 405
○ DOWN 140ms bad_status: unexpected HTTP 405
○ DOWN 340ms bad_status: unexpected HTTP 405
○ DOWN 617ms bad_status: unexpected HTTP 405
○ DOWN 342ms bad_status: unexpected HTTP 405
● OK 329ms

EMBED THIS BADGE

Show that true402 is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

true402 listed on x402-list
status
true402 uptime on x402-list
live uptime
// HTML
<a href="https://x402-list.com/services/true402?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/true402.svg" alt="true402 listed on x402-list" height="28">
</a>
// Markdown
[![true402 on x402-list](https://x402-list.com/badge/true402.svg)](https://x402-list.com/services/true402?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/true402?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/true402.svg?data=uptime" alt="true402 uptime on x402-list" height="28">
</a>

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