x402 List

x402 Protocol Service Directory

StableBrowser

AI PAYMENT-READY imported

payment-ready until 2026-08-20

imported from the x402 Bazaar, not submitted by the operator · own this service? claim it · or ask to be removed

Remote browser sessions for AI agents, priced at 0.10 USDC on Base per session. Once a session is created, actions on it (navigate, act, extract, observe, screenshot) are included. Built on Browserbase and Stagehand.

Pay from $0.10 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

first settlement 2026-03-19 · $71.90 all-time · settled via coinbase

BASE URL https://www.stablebrowser.dev ENDPOINTS 1 NETWORK Base ASSET USDC MEMBER SINCE 2026-07-20 MONITORED SINCE 2026-07-20

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 100%
uptime 24h
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
1913ms
avg response
911ms
total checks
2,144

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 $0.10 (p76 in AI)
price (min)
$0.10
category percentile (min)
p76 in AI
endpoints / prices
1 / 1
model
flat
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
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

traction $18.50 30d · 18 buyers
volume 30d
$18.50
buyers 30d
18
settlements 30d
185
first settlement
2026-03-19
last settlement
2026-08-11
top buyer share
35% of 30d volume
trend 7d vs 30d
0.30x the 30d daily rate
networks
eip155:8453
volume all-time
$71.90
settlements all-time
719
median settlement 30d
$0.10
max settlement 30d
$0.10
settled via
coinbase ($18.50, 185 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

No AI synthesis has been produced for this service yet.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
POST /api/sessions $0.10 Base USDC header
1 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /api/sessions 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://www.stablebrowser.dev/api/sessions'
// 402 response (captured by monitor) · 1 payload · click to expand
[
  {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xcB79b3c5A7dADcD7C30E3bE252c0CA44a06C6f78",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://www.stablebrowser.dev/api/sessions",
      "tags": [
        "Sessions"
      ],
      "method": "POST",
      "mimeType": "application/json",
      "description": "Create a new browser session ($0.10). Optionally pass sessionId to resume an existing Browserbase session. Returns sessionId (Browserbase session ID) to use for all subsequent calls.",
      "serviceName": "StableBrowser"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {},
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "properties": {
                    "sessionId": {
                      "type": "string",
                      "description": "Optional session ID to use/reuse. If not provided or invalid, a new session is created."
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    },
    "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/stablebrowser/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
07-20 · uptime 100.0% · 927ms avg07-21 · uptime 100.0% · 836ms avg07-22 · uptime 100.0% · 1025ms avg07-23 · uptime 100.0% · 754ms avg07-24 · uptime 100.0% · 808ms avg07-25 · uptime 100.0% · 844ms avg07-26 · uptime 100.0% · 866ms avg07-27 · uptime 100.0% · 815ms avg07-28 · uptime 100.0% · 807ms avg07-29 · uptime 100.0% · 768ms avg07-30 · uptime 100.0% · 901ms avg07-31 · uptime 100.0% · 882ms avg08-01 · uptime 100.0% · 891ms avg08-02 · uptime 100.0% · 994ms avg08-03 · uptime 100.0% · 939ms avg08-04 · uptime 100.0% · 996ms avg08-05 · uptime 100.0% · 1487ms avg08-06 · uptime 100.0% · 1079ms avg08-07 · uptime 100.0% · 955ms avg08-08 · uptime 100.0% · 661ms avg08-09 · uptime 100.0% · 642ms avg08-10 · uptime 100.0% · 1077ms avg08-11 · uptime 100.0% · 906ms avg08-12 · uptime 100.0% · 994ms avg08-13 · uptime 100.0% · 954ms avg07-2008-13
90d UPTIME 100%
RESPONSE TIME
07-20 · 927ms avg07-20 · 927ms avg07-21 · 836ms avg07-21 · 836ms avg07-22 · 1025ms avg07-22 · 1025ms avg07-23 · 754ms avg07-23 · 754ms avg07-24 · 808ms avg07-24 · 808ms avg07-25 · 844ms avg07-25 · 844ms avg07-26 · 866ms avg07-26 · 866ms avg07-27 · 815ms avg07-27 · 815ms avg07-28 · 807ms avg07-28 · 807ms avg07-29 · 768ms avg07-29 · 768ms avg07-30 · 901ms avg07-30 · 901ms avg07-31 · 882ms avg07-31 · 882ms avg08-01 · 891ms avg08-01 · 891ms avg08-02 · 994ms avg08-02 · 994ms avg08-03 · 939ms avg08-03 · 939ms avg08-04 · 996ms avg08-04 · 996ms avg08-05 · 1487ms avg08-05 · 1487ms avg08-06 · 1079ms avg08-06 · 1079ms avg08-07 · 955ms avg08-07 · 955ms avg08-08 · 661ms avg08-08 · 661ms avg08-09 · 642ms avg08-09 · 642ms avg08-10 · 1077ms avg08-10 · 1077ms avg08-11 · 906ms avg08-11 · 906ms avg08-12 · 994ms avg08-12 · 994ms avg08-13 · 954ms avg08-13 · 954ms avg07-2008-13
AVG RESP 911ms
PRICE (captured 402, USD)
07-20 · $0.1008-13 · $0.10$0.1007-2008-13
SUB-SCORES (uptime + x402 compliance)
07-20 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: 100.0% compliance: 100% checks07-26 uptime: 100.0% compliance: 100% checks07-27 uptime: 100.0% compliance: 100% checks07-28 uptime: 100.0% compliance: 100% checks07-29 uptime: 100.0% compliance: 100% checks07-30 uptime: 100.0% compliance: 100% checks07-31 uptime: 100.0% compliance: 100% checks08-01 uptime: 100.0% compliance: 100% checks08-02 uptime: 100.0% compliance: 100% checks08-03 uptime: 100.0% compliance: 100% checks08-04 uptime: 100.0% compliance: 100% checks08-05 uptime: 100.0% compliance: 100% checks08-06 uptime: 100.0% compliance: 100% checks08-07 uptime: 100.0% compliance: 100% checks08-08 uptime: 100.0% compliance: 100% checks08-09 uptime: 100.0% compliance: 100% checks08-10 uptime: 100.0% compliance: 100% checks08-11 uptime: 100.0% compliance: 100% checks08-12 uptime: 100.0% compliance: 100% checks08-13 uptime: 100.0% compliance: 100% checksuptimecompliance07-2008-13

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)
05-18 · $0.4005-19 · $0.9005-26 · $0.1005-27 · $0.1005-28 · $605-29 · $0.3006-01 · $0.5006-02 · $0.7006-03 · $0.9006-04 · $306-05 · $106-06 · $0.9006-07 · $0.6006-08 · $206-09 · $206-10 · $106-11 · $0.5006-12 · $106-13 · $106-14 · $0.1006-15 · $0.1006-16 · $0.7006-18 · $0.7006-19 · $0.6006-20 · $0.5006-21 · $0.4006-22 · $0.2006-23 · $0.9006-24 · $106-25 · $106-26 · $0.7006-29 · $0.7006-30 · $107-01 · $0.9007-02 · $0.7007-03 · $0.6007-09 · $0.5007-10 · $0.5007-11 · $0.1007-13 · $107-14 · $207-15 · $207-16 · $107-17 · $107-19 · $0.1007-20 · $207-23 · $0.6007-24 · $0.6007-26 · $0.1007-27 · $107-28 · $0.2007-29 · $0.1007-30 · $0.2007-31 · $0.5008-01 · $0.1008-04 · $0.3008-05 · $0.1008-06 · $708-08 · $0.3008-10 · $0.4008-11 · $0.6008-13 · $0.90peak $705-1808-13
DISTINCT BUYERS
05-18 · 2 buyers05-19 · 2 buyers05-26 · 1 buyer05-27 · 1 buyer05-28 · 1 buyer05-29 · 1 buyer06-01 · 2 buyers06-02 · 1 buyer06-03 · 2 buyers06-04 · 3 buyers06-05 · 3 buyers06-06 · 1 buyer06-07 · 1 buyer06-08 · 5 buyers06-09 · 4 buyers06-10 · 2 buyers06-11 · 3 buyers06-12 · 4 buyers06-13 · 2 buyers06-14 · 1 buyer06-15 · 1 buyer06-16 · 2 buyers06-18 · 2 buyers06-19 · 1 buyer06-20 · 1 buyer06-21 · 2 buyers06-22 · 2 buyers06-23 · 2 buyers06-24 · 1 buyer06-25 · 2 buyers06-26 · 2 buyers06-29 · 2 buyers06-30 · 2 buyers07-01 · 1 buyer07-02 · 1 buyer07-03 · 1 buyer07-09 · 2 buyers07-10 · 1 buyer07-11 · 1 buyer07-13 · 4 buyers07-14 · 4 buyers07-15 · 3 buyers07-16 · 1 buyer07-17 · 1 buyer07-19 · 1 buyer07-20 · 3 buyers07-23 · 2 buyers07-24 · 2 buyers07-26 · 1 buyer07-27 · 3 buyers07-28 · 1 buyer07-29 · 1 buyer07-30 · 1 buyer07-31 · 2 buyers08-01 · 1 buyer08-04 · 1 buyer08-05 · 1 buyer08-06 · 1 buyer08-08 · 2 buyers08-10 · 1 buyer08-11 · 2 buyers08-13 · 1 buyerpeak 5 buyers05-1808-13

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-20 · last up 2026-08-13

  • 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
● OK 904ms
● OK 655ms
● OK 674ms
● OK 1093ms
● OK 487ms
● SLOW 1565ms
● OK 702ms
● SLOW 2009ms
● SLOW 1610ms
● OK 585ms
● OK 635ms
● OK 620ms
● OK 1243ms
● SLOW 1507ms
● OK 611ms
● OK 1269ms
● OK 599ms
● OK 1129ms

EMBED THIS BADGE

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

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

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.

[ verify this service ($0.25) ]

To request delisting, email info@x402-list.com or update your listing at /services/stablebrowser/update.