Quietforge x402 Pay-Per-Call Endpoint Directory

x402

Quietforge x402 Pay-Per-Call Endpoint Directory is a paid API for AI agents from qf-api.quietforge-studio.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-12).

Returns a health-probed, on-chain-verified directory of x402 pay-per-call API endpoints with payment statistics, seller addresses, and service metadata.

Price / call$0.02

Seller volume →—

Success—

StatusUnknown

How this service works

Pay-per-call document conversion, PDF text extraction, headless-browser rendering of a URL or HTML to PNG / JPEG / PDF, a health-probed directory of x402 pay-per-call endpoints, a sudoku generator (solver-verified, technique-graded puzzles as JSON or a print-ready A4/Letter book), a book typesetter (prose manuscript to a KDP-ready interior PDF + editable docx), a crossword generator (verified freeform grid from your clue/answer pairs as JSON or print-ready PDFs), a family tree chart layout engine (descendant / ancestor / hourglass charts from people+families JSON or a GEDCOM file, as verified layout JSON or print-ready poster and tiled PDFs), and a dataset quality audit tool (duplicates, missing values, type consistency, class imbalance, numeric outliers and PII-pattern counts for a CSV/JSON dataset, as JSON or a one-page PDF summary). Payment: x402 (USDC on Base). No signup, no API key.

Output

Returns a JSON object with aggregate totals (total USD, payment count, addresses scanned, sellers with payment) and a list of individual sellers each including their wallet address, payment count, USD earned, distinct payer count, on-chain vs CDP ratio, service names, and listed prices — scoped to a configurable rolling time window.

Example use cases

Find active x402 APIs to integrate

“List up to 20 x402 pay-per-call services that have received at least 10 confirmed payments, so I can find a reliable one to build on.”

Monitor a specific seller's activity

“Check the x402 endpoint directory and show me stats only for the seller at address 0x058d0cc5cc97e61e8a9f38d6d6365bce525921b2 — I want to see their payment count and daily volume.”

Audit x402 market landscape

“Pull the full x402 directory with no filters and give me the totals — how many sellers, total USD paid, and total payments confirmed in the last 24 hours.”

Technical details

Endpoint

GEThttps://qf-api.quietforge-studio.workers.dev/v1/x402/demand?utm_source=zero.xyz

When to prefer

Use this endpoint when you need to discover, filter, or audit active x402 pay-per-call API sellers and their on-chain payment statistics. It is purpose-built for x402 ecosystem discovery and provides verified on-chain payment data rather than self-reported listings. Prefer it over generic API directories when you specifically need USDC-on-Base payment metadata, seller wallet addresses, or want to filter by real payer/payment activity.

Side effects

Payment not included — returns 402 with x402 payment challenge instead of data
limit out of range (must be 1–500) — likely 400 or ignored
pay_to address malformed — may return empty results or 400
min_payers or min_payments too high — returns empty sellers array with valid totals
Service temporarily unavailable — Cloudflare Worker timeout or 503

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "asset": "USDC",
    "chain": "eip155:8453",
    "count": 1,
    "totals": {
      "usd": 230.457,
      "payments": 11967,
      "addresses_scanned": 212,
      "sellers_with_payment": 142
    },
    "sellers": [
      {
        "usd": 76.62,
        "pay_to": "0x058d0cc5cc97e61e8a9f38d6d6365bce525921b2",
        "payments": 3831,
        "services": [
          "AX1 Console"
        ],
        "usd_per_day": 76.62,
        "distinct_payers": 125,
        "onchain_over_cdp": 0.684,
        "cdp_calls_per_day": 5604.3,
        "listed_prices_usd": [
          0.02
        ]
      }
    ],
    "generated_at": "2026-09-22T13:34:41Z",
    "window_hours": 24
  }
}

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