Subpay invoice reader

x402 resource x402 REST

subpay.ai · subpay.ai · Business & Growth

Provider site ↗

Reads invoices, bills and receipts from PDF into structured JSON — vendor, customer, dates, PO, line items, discount, tax, shipping, total, balance due — and checks the arithmetic: quantity × unit price, lines to subtotal, tax rate, total and balance due. The response says exactly which figures don'

Price per call 0.04 USDC per call published unit: per call

Calls · 30d — not reported by any source

Payers · 30d — not reported by any source

Observed inflows · 30d — not attributable

Inflow growth · 7d — not comparable (baseline under $1 or window incomplete)

Payment evidence Rail not scanned confidence: low · read 2026-10-29

Observed inflows · last 30 days

No inflow observed in this window

The rail is not an EVM address, and our transfer scan currently covers USDC on Base only.

Observed inflows by window for Subpay invoice reader.
Window	Observed	Transfers
Last complete day (2026-10-31)	—	—
Last 7 days	—	—
Last 30 days	—	—
Growth, 7d against the 7 before	not comparable

Source: on-chain transfer scan (USDC on Base) Window: 2026-10-02 → 2026-10-31 Scanned: 30/30 days Sample: 0 days with a measurement First seen: never Last update: 2026-10-31

Daily history →. Observed transfers show value arriving at the payout address; they do not establish service revenue.

Blockchain wallets

Full addresses · public payment evidence

Receiving wallets are payment addresses published for this service. Sending wallets transferred funds to an exclusive receiving address; this alone does not prove a purchase or identify an agent.

Receiving wallets · provider payment addresses

All published receiving wallet addresses for Subpay invoice reader.
Network	Full wallet address	Evidence
Solana	BdBfWq727mnZSGC5YJ3uRGFZDSGG73meSzabePaNiJ5C	Shared address · activity cannot be assigned to this serviceFrom source record · source: payai

Sending wallets · observed counterparties

No sending wallet addresses have been retained for this service. Buyer wallets are unknown; daily totals and reported payer counts do not reveal their addresses.

Coverage includes retained scans only, not every historical transaction. Earlier daily totals cannot recover sender addresses. Sender lists exclude shared receiving wallets, whose transfers could belong to another service. A provider address does not establish wallet ownership.

Competitors & category benchmark

Rank the whole category →

Closest competitors Business & Growth

StableUpload 337 calls · 0.005 USDC per call $8.67
Minifetch Technical SEO API 110 calls · 0.001 USDC per call —
Radix (base) conversion 52 calls · 0.002 USDC per call —
AISkills402: SEO Meta Writer 46 calls · 0.03 USDC per call —
Interzoid Data APIs 37 calls · 0.01 USDC per call —

Sorted by source-measured calls, not by our opinion. The right-hand figure is observed inflow, which stays empty for peers whose address is shared.

Category benchmark 2,123 services in this category

With a measured call count	408 (19.2 %)
With a published price	502 (23.6 %)
With attributable inflows	17 (0.8 %)
Observed inflows · 30d	$36.26
Median measured calls	2
Median price per call	$0.01

Similar services

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stableupload.dev Business & Growth 337 calls / 30d checked 2026-10-31

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Radix (base) conversion x402 REST usage

Convert an integer between numeral bases 2–36 (binary, octal, hex, base36, …). Arbitrary size via BigInt; digits are case-insensitive and a leading minus is allowed.

numeral.openverbs.com Business & Growth 52 calls / 30d checked 2026-10-31

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AISkills402: SEO Meta Writer x402 REST usage

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Chosen by category and by whether we have measured them, not by who pays us. A sponsored placement in this list is labelled as such.

Service details, payment routes and source evidence

Where you can pay

1 route from the provider's payment requirements

Payment networks and amounts published for Subpay invoice reader.
Network	Scheme	Amount	Asset
Solana	exact	0.04	USDC

“exact” is the price per call. “upto” is a ceiling the client sets, not a price. Atomic amount 40000 = 0.04 USDC per call on Solana.

What you can call

access: payment per call (x402)

endpoint https://subpay.ai/invoice/mcp

Request

{
    "type": "mcp",
    "toolName": "extract_invoice",
    "description": "Reads invoices, bills and receipts from PDF into structured JSON \u2014 vendor, customer, dates, PO, line items, discount, tax, shipping, total, balance due \u2014 and checks the arithmetic: quantity \u00d7 unit price, lines to subtotal, tax rate, total and balance due. The response says exactly which figures don't add up. Priced $0.04 per page (up to 25 pages).",
    "inputSchema": {
        "type": "object",
        "required": [
            "document"
        ],
        "properties": {
            "document": {
                "type": "string",
                "description": "The invoice PDF, base64-encoded. Max about 3 MB, 25 pages."
            },
            "fileName": {
                "type": "string"
            }
        }
    }
}

Response

{
    "type": "json",
    "example": {
        "checks": [
            {
                "name": "line_math",
                "detail": "quantity \u00d7 unit price = amount on all 2 priced line(s)",
                "passed": true
            },
            {
                "name": "lines_to_subtotal",
                "detail": "2 line amount(s) sum to the subtotal 295.00",
                "passed": true
            },
            {
                "name": "tax_rate",
                "detail": "tax = rate \u00d7 taxable amount on 1 tax line(s)",
                "passed": true
            },
            {
                "name": "total",
                "detail": "subtotal \u2212 discount + tax + shipping + other charges = total",
                "passed": true
            }
        ],
        "invoice": {
            "taxes": [
                {
                    "label": "Sales tax",
                    "amount": 20.65,
                    "ratePercent": 7
                }
            ],
            "total": 315.65,
            "vendor": {
                "name": "Acme Supply Co.",
                "taxId": "12-3456789"
            },
            "dueDate": "2026-10-31",
            "currency": "USD",
            "customer": {
                "name": "Northwind LLC"
            },
            "subtotal": 295,
            "lineItems": [
                {
                    "amount": 125,
                    "quantity": 10,
                    "unitPrice": 12.5,
                    "description": "Widget A"
                },
                {
                    "amount": 170,
                    "quantity": 2,
                    "unitPrice": 85,
                    "description": "Install labor"
                }
            ],
            "balanceDue": 315.65,
            "invoiceDate": "2026-10-01",
            "documentType": "INVOICE",
            "invoiceNumber": "INV-1042"
        },
        "warnings": [],
        "confidence": 0.95
    }
}

Examples are the provider's own, not a call we made.

Opportunity insights

2 findings from measured data

Priced, but nothing observed arriving

A price is published, yet no transfer reached the payout address in the last 30 days. Either the buyers pay elsewhere, the volume is below one cent, or the endpoint is dormant. Only 17 of 2123 services in this category have attributable inflows at all.
Services here that do show inflows →
Category benchmark

17 of 2,123 services (0.8%) in Business & Growth have attributable inflows; 408 have a source-measured call count. Median measured calls: 2.
Rank this category by observed inflows →

What the provider says

Quoted from PayAI · source record · read 2026-10-29

Facts and where they come from

Price: 0.04 USDC per call Provider claim
Recorded value: 0.04 USDC per call.
Unit: per call
Protocol: x402, REST · transport: HTTP Provider claim
Auth: x402
Endpoint: https://subpay.ai/invoice/mcp
Source: PayAI · Public discovery API (provider-published records)
Last checked: Not checked by us yet — the data is as the source published it
First seen: 2026-10-26

Money, and what it actually proves

Verified revenue · 30d Unknown

Observed inflows · 30d —

Attribution Unscanned

Receipt ledger Not connected

Rail not scanned · confidence low
The rail is not an EVM address, and our transfer scan currently covers USDC on Base only.

Why revenue is “unknown”. A revenue figure needs a receipt: an amount a buyer actually paid for this service. We hold none for this entry, and we hold no funds at all. What we have instead is nothing measurable: no price, no attributable address, no receipt. The rail is not an EVM address, and our transfer scan currently covers USDC on Base only.

Daily market statistics — the ledger view, day by day

No daily history has been archived for this service yet. Open the full daily history →

Payment rails

Solana · exact · USDC

BdBfWq727mnZSGC5YJ3uRGFZDSGG73meSzabePaNiJ5C

0.04 USDC

From source record

A payment rail is where the provider asks to be paid. It is not proof that anything was paid through it.

Provenance

One row per statement. “Verified” means we checked it ourselves and the finding is quoted. “Provider claim” means we read it in the provider's own record. “Not found” is a statement about our search, not proof of absence.

Statement	Status	What we found	Source	Checked
Endpoint	Provider claim	https://subpay.ai/api/v1/invoice Evidence Als Resource-URL im Bazaar-Eintrag geführt.	facilitator.payai.network	2026-10-29
Input output	Provider claim	Request/response examples published with the listing Evidence Beispiel-Ein- und -Ausgabe stammen aus dem Bazaar-Eintrag des Anbieters.	facilitator.payai.network	2026-10-29
Payment	Provider claim	1 rail: Solana · payee BdBfWq727mnZSGC5YJ3uRGFZDSGG73meSzabePaNiJ5C Evidence Aus den `accepts`-Einträgen: Netzwerk, Asset, Empfängeradresse und Betrag. Die Adresse ist die Grundlage der späteren On-Chain-Zuordnung; sie ist noch nicht durch eine eigene 402-Antwort bestätigt.	facilitator.payai.network	2026-10-29
Pricing	Provider claim	0.04 USDC per call Evidence Atomic amount 40000 = 0.04 USDC per call on Solana. Netzwerk: Solana.	facilitator.payai.network	2026-10-29
Protocol	Provider claim	x402 (HTTP 402 payment challenge) Evidence Im x402 Bazaar als zahlungspflichtige HTTP-Ressource gelistet (x402Version 2, Typ http).	facilitator.payai.network	2026-10-29
Provider	Provider claim	subpay.ai Evidence Die Ressource wird unter diesem Host im x402 Bazaar geführt; die Angaben stammen vom Anbieter.	facilitator.payai.network	2026-10-29

Endpoint checks

We have not called this endpoint yet. Until we do, everything above is what the source published — no more.

Price

0.04 USDC per call

price checked 2026-10-29 Open at subpay.ai

You buy from the provider, not from us. This page takes no payment, holds no funds and stores no wallet keys.

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