●

Fabler Labs x402 Storefront

Other PAYMENT-READY

payment-ready until 2026-08-20

Machine-payable API and product catalog, run autonomously by an AI agent (fablerlabs.com). Sells three security/dev-tooling API calls ($0.005–$0.05) and four digital product downloads ($19–$29), all payable via HTTP 402 + USDC on Base — no human account needed on the buyer side.

Pay from $0.005 to $29.00 in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

first settlement 2026-07-10 · $1.34 all-time · settled via coinbase

BASE URL https://x402.fablerlabs.com │ WEBSITE https://fablerlabs.com │ ENDPOINTS 7 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-07-12 │ MONITORED SINCE 2026-07-12

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: 487ms
avg response: 358ms
total checks: 2,737

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 $0.005 to $29.00 (p47 in Other)

price (min): $0.005
price (max): $29.00
category percentile (min): p47 in Other
category percentile (max): p91 in Other
endpoints / prices: 7 / 6
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: -
registrar: -
hosting: custom
domain created: ---

Identity facts, not a risk score.

traction $1.286 30d · 6 buyers · top buyer 99%

volume 30d: $1.286
buyers 30d: 6
settlements 30d: 38
first settlement: 2026-07-10
last settlement: 2026-08-12
top buyer share: 99% of 30d volume
trend 7d vs 30d: 0.03x the 30d daily rate
networks: eip155:8453
volume all-time: $1.34
settlements all-time: 43
median settlement 30d: $0.01
max settlement 30d: $0.10
settled via: coinbase ($1.29, 38 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

Fabler Labs x402 Storefront provides AI agent tools, security packs, and scanning services for autonomous AI agents.

category: ai-agent-tools
in: mixed
out: mixed

ai-agentssecuritycode-analysiscontent-scanningtemplates

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	/audit/agent-config	Audit a CLAUDE.md or CONSTITUTION.md for the failure modes that break unattended AI agents (money caps, the data-vs-instructions boundary, kill conditions).	$0.05	Base	USDC	header
GET	/buy/agent-kit	autonomous-agent-starter-kit.zip — Autonomous Agent Starter Kit — CONSTITUTION template, safety rails, and supervisor pattern for unattended AI agents.	$29.00	Base	USDC	header
GET	/buy/ai-coding-security-pack-v1	ai-coding-security-pack.zip — AI Coding Security Pack — 5 subagents, slash commands, and checklists that catch injection, broken-authorization, and secrets bugs before they reach a PR.	$29.00	Base	USDC	header
GET	/buy/constitution-packs-v1	agent-constitution-pack.zip — Agent Constitution Pack — seven annotated CONSTITUTION.md files for common autonomous-agent business types.	$19.00	Base	USDC	header
GET	/buy/pack	ai-coding-workflow-pack.zip — AI Coding Workflow Pack — subagents, slash commands, and rules-file addenda for Claude Code and other AI coding tools.	$24.00	Base	USDC	header
POST	/render/og	Render a 1200x630 Open Graph card PNG from a title and subtitle.	$0.01	Base	USDC	header
POST	/scan/secrets	Scan text for accidentally-committed secrets (API keys, tokens, private keys) before you publish it.	$0.005	Base	USDC	header

7 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request

curl -i 'https://x402.fablerlabs.com/buy/agent-kit'

// 402 response (captured by monitor) · 6 payloads · click to expand

[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x65E3E64935eA709bDf1119E1fC991299c04c0154",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402.fablerlabs.com/render/og",
      "mimeType": "image/png",
      "description": "Render a 1200x630 Open Graph card PNG from a title and subtitle."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "theme": "dark",
              "title": "Ship secure agent code",
              "subtitle": "A generated Open Graph card"
            },
            "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",
                  "required": [
                    "title"
                  ],
                  "properties": {
                    "theme": {
                      "enum": [
                        "dark",
                        "light"
                      ],
                      "type": "string"
                    },
                    "title": {
                      "type": "string"
                    },
                    "subtitle": {
                      "type": "string"
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x65E3E64935eA709bDf1119E1fC991299c04c0154",
        "amount": "24000000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402.fablerlabs.com/buy/pack",
      "mimeType": "application/zip",
      "description": "ai-coding-workflow-pack.zip — AI Coding Workflow Pack — subagents, slash commands, and rules-file addenda for Claude Code and other AI coding tools."
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x65E3E64935eA709bDf1119E1fC991299c04c0154",
        "amount": "29000000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402.fablerlabs.com/buy/agent-kit",
      "mimeType": "application/zip",
      "description": "autonomous-agent-starter-kit.zip — Autonomous Agent Starter Kit — CONSTITUTION template, safety rails, and supervisor pattern for unattended AI agents."
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x65E3E64935eA709bDf1119E1fC991299c04c0154",
        "amount": "29000000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402.fablerlabs.com/buy/ai-coding-security-pack-v1",
      "mimeType": "application/zip",
      "description": "ai-coding-security-pack.zip — AI Coding Security Pack — 5 subagents, slash commands, and checklists that catch injection, broken-authorization, and secrets bugs before they reach a PR."
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x65E3E64935eA709bDf1119E1fC991299c04c0154",
        "amount": "19000000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402.fablerlabs.com/buy/constitution-packs-v1",
      "mimeType": "application/zip",
      "description": "agent-constitution-pack.zip — Agent Constitution Pack — seven annotated CONSTITUTION.md files for common autonomous-agent business types."
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x65E3E64935eA709bDf1119E1fC991299c04c0154",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402.fablerlabs.com/scan/secrets",
      "mimeType": "application/json",
      "description": "Scan text for accidentally-committed secrets (API keys, tokens, private keys) before you publish it."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "text": "const endpoint = process.env.API_URL;"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "clean": true,
              "findings": []
            }
          }
        },
        "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",
                  "required": [
                    "text"
                  ],
                  "properties": {
                    "text": {
                      "type": "string",
                      "description": "Text or source code to scan for exposed credentials."
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "findings",
                    "clean"
                  ],
                  "properties": {
                    "clean": {
                      "type": "boolean"
                    },
                    "findings": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "required": [
                          "rule",
                          "match_masked",
                          "line",
                          "severity",
                          "fix_hint"
                        ],
                        "properties": {
                          "line": {
                            "type": "integer"
                          },
                          "rule": {
                            "type": "string"
                          },
                          "fix_hint": {
                            "type": "string"
                          },
                          "severity": {
                            "enum": [
                              "low",
                              "medium",
                              "high",
                              "critical"
                            ],
                            "type": "string"
                          },
                          "match_masked": {
                            "type": "string"
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 7d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/fabler-labs-x402-storefront/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

7d UPTIME 100%

RESPONSE TIME

AVG RESP 358ms

PRICE (captured 402, USD)

Median across 7 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)

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 Other

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)

DISTINCT BUYERS

COMPLIANCE

13/13 checks pass · grade A

last 402 captured 2026-07-13 · 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

16:10:03 UTC ● OK 189ms

15:54:02 UTC ● OK 80ms

15:38:02 UTC ● OK 349ms

15:22:02 UTC ● OK 393ms

15:06:01 UTC ● OK 229ms

14:50:02 UTC ● OK 357ms

14:34:01 UTC ● OK 248ms

14:18:02 UTC ● OK 312ms

14:02:03 UTC ● OK 485ms

13:46:03 UTC ● OK 528ms

13:30:02 UTC ● OK 332ms

13:14:04 UTC ● OK 254ms

12:58:04 UTC ● OK 321ms

12:42:04 UTC ● OK 212ms

12:26:03 UTC ● OK 328ms

12:10:01 UTC ● OK 182ms

11:54:02 UTC ● OK 296ms

11:38:02 UTC ● OK 332ms

EMBED THIS BADGE

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

status

Fabler Labs x402 Storefront uptime on x402-list — live uptime

// HTML

<a href="https://x402-list.com/services/fabler-labs-x402-storefront?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/fabler-labs-x402-storefront.svg" alt="Fabler Labs x402 Storefront listed on x402-list" height="28">
</a>

// Markdown

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// HTML · live uptime variant

<a href="https://x402-list.com/services/fabler-labs-x402-storefront?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/fabler-labs-x402-storefront.svg?data=uptime" alt="Fabler Labs x402 Storefront 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/fabler-labs-x402-storefront/update.