MARKET MONITOR / CATALOGUE Services 133,130 MCP listed 40,873 x402 92,339 Rails Base / Solana / Polygon / Arbitrum Imported 2026-10-31 · 3 sources
Task

Invoice

31 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

X Pay x402 REST usage

Payment quote with amount, asset, and merchant wallet

www.api-xpay.com Crypto & Payments 7,233 calls / 30d checked 2026-10-31
0.005 USDC per call per call

Bitrefill x402 REST usage

Search 10,000+ gift card & voucher brands across 180+ countries by name and country. Pay in USDC via x402, no account.

api.bitrefill.com Crypto & Payments 114 calls / 30d checked 2026-10-31
0.002 USDC per call per call

Mearef - Mid-East reference data x402 REST usage

Cost to employ: every statutory contribution priced line by line, employee and employer sides separated, with the schemes we will not price named and reasoned

mearef.dev Other services 3 calls / 30d checked 2026-10-31
0.05 USDC per call per call

German Invoice Details Check x402 REST usage

Checks a German invoice (Rechnung) for the ten mandatory details of § 14 (4) UStG, the German VAT act, from caller-supplied invoice text. If a total up to 250 EUR is detectable, the small-amount simplifications (Kleinbet...

api.ozdreamtools.de Media & Creative 1 calls / 30d checked 2026-10-31
0.1 USDC per call per call

Stack Billing x402 REST usage

Generate a finished, professional invoice PDF from JSON — recipient and line items in, a ready-to-send application/pdf out. Layouts: standard, legal, creative. Totals and tax are computed server-side so the numbers alway...

stackbill.app Media & Creative 1 calls / 30d checked 2026-10-31
0.1 USDC per call per call

Afriref - Africa reference data x402 REST usage

Minimum-wage compliance check for African countries with a statutory minimum wage (34 African countries covered): is this salary at or above the statutory minimum wage? Returns a verdict, the margin, the applicable wage...

afriref.dev Other services 5 calls / 30d checked 2026-10-31
0.02 USDC per call per call

Agent Output Verifier x402 REST usage

Independently verify an agent's output before you pay: an invoice or any deliverable, checked against your JSON Schema and rules like sums matching totals. Pass/fail, % passed, fix hints and a signed receipt. $0.02 USDC,...

fastapi-service-5ag4.onrender.com Crypto & Payments 4 calls / 30d checked 2026-10-31
0.02 USDC per call per call

Vibe Springs x402 REST usage

Real-time BTC/USD price feed oracle. Retrieves live spot rate, 24h high/low, and volume directly from Coinbase Exchange.

vibesprings.net Data & Finance 39 calls / 30d checked 2026-10-31
0.002 USDC per call per call

Agent Output Verifier x402 REST usage

Free during launch: check AI agent output before you accept or pay for a deliverable against your JSON Schema and rules. Pass/fail, % of checks passed, fix hints, signed attestation and receipt. $0.02 USDC after, x402 v2...

verify.sarnai.dev Crypto & Payments 3 calls / 30d checked 2026-10-31
0.02 USDC per call per call

Counterparty check x402 REST usage

Check a known EU VAT ID and/or Peppol participant using separate tax-validity, entity-match, and discoverability evidence. VIES is never used for name search and upstream responses are not resold. / 既知のEU VAT IDまたは...

api.jpverify.com Search & Research 1 calls / 30d checked 2026-10-31
0.05 USDC per call per call

PaidPilot Invoice API x402 REST usage

Calculate a late fee on an overdue invoice. $0.01 USDC on Base per call. Flat, monthly % or annual %, simple or compounding, with grace days. Returns days late, fee, new total and a paste-ready invoice line. Don't use th...

api.paidpilot.io Media & Creative 5 calls / 30d checked 2026-10-31
0.01 USDC per call per call

Asiaref - Asia reference data x402 REST usage

VAT/GST calculation for Asian countries with a national VAT or GST (28 Asian countries covered): add VAT to a net amount or extract it from a gross one at the cited statutory rate. Returns net, tax and gross, including s...

asiaref.dev Web & Scraping 5 calls / 30d checked 2026-10-31
0.01 USDC per call per call

Ausref - Oceania reference data x402 REST usage

VAT/GST calculation for Australasian countries with a national VAT or GST (8 Australasian countries covered): add VAT to a net amount or extract it from a gross one at the cited statutory rate. Returns net, tax and gross...

ausref.dev Web & Scraping 5 calls / 30d checked 2026-10-31
0.01 USDC per call per call

Euroref - Europe reference data x402 REST usage

VAT/GST calculation for European countries with a national VAT or GST (34 European countries plus the EU covered): add VAT to a net amount or extract it from a gross one at the cited statutory rate. Returns net, tax and...

euroref.dev Web & Scraping 5 calls / 30d checked 2026-10-31
0.01 USDC per call per call

d21 invoice_aging x402 REST usage

Legacy/supporting: invoice aging + collection priority. Not the go-to — prefer Signal.

draconic21-x402-api.onrender.com Media & Creative 2 calls / 30d checked 2026-10-31
0.02 USDC per call per call

Decode a Lightning invoice x402 REST usage

Decode a BOLT11 Lightning Network invoice without paying it: network, amount in sats and BTC, description, payment hash, creation time, expiry time and whether it has already expired. Use to check what an invoice asks fo...

agent-data-tools.revmesh2074.workers.dev Media & Creative 3 calls / 30d checked 2026-10-31
0.01 USDC per call per call

Aether x402 REST usage

Wallet balance on Base: the native ETH balance of any address, read live from the chain. Input: address

aether-x402.vercel.app Crypto & Payments 30 calls / 30d checked 2026-10-31
0.001 USDC per call per call

Japanese Invoice Extractor x402 REST usage

Use when an agent has the text of a Japanese invoice or receipt (e.g. OCR output) and needs exact amounts without LLM misreads. Returns registration number (T+13, check digit only, not an NTA registry lookup), total, sub...

invoice-extract-jp.threads-cron.workers.dev Business & Growth 5 calls / 30d checked 2026-10-31
0.005 USDC per call per call

AgentUtility.ai x402 REST usage

Keyword and autocomplete suggestions for any seed query. Aggregates Wikipedia OpenSearch and DuckDuckGo autocomplete (both public, no auth) into a de-duplicated ranked list — useful for SEO keyword research, content-gap...

x402.agentutility.ai Search & Research 12 calls / 30d checked 2026-10-31
0.002 USDC per call per call

Number / amount to words x402 REST checked

Write a number or money amount in words, in Spanish or English (EUR, USD, GBP, MXN), with correct Spanish apocope (veintiún, un millón de euros). For invoices, cheques and contracts.

api.vextorium.com Media & Creative 5 calls / 30d checked 2026-10-28
0.003 USDC per call per call checked

EU VAT rates & breakdown x402 REST usage

Standard and reduced VAT rates of any EU member state, and an invoice breakdown (net, VAT, gross) from a net or VAT-inclusive amount, flagging rates that are not in force there.

api.vextorium.com Media & Creative 5 calls / 30d checked 2026-10-28
0.003 USDC per call per call

Latamref - LatAm reference data x402 REST usage

Working days / next working day in a date range: weekends + gazetted public holidays

latamref.dev Comms & Messaging 7 calls / 30d checked 2026-10-31
0.002 USDC per call per call

Factline x402 REST usage

Currency exchange rates and FX conversion, official ECB reference rates for USD, EUR, GBP, JPY and 25 more. Use to convert an amount between currencies with an official, citable rate: the European Central Bank's referenc...

factline.dev Data & Finance 10 calls / 30d checked 2026-10-31
0.001 USDC per call per call

Usaref - N America reference x402 REST usage

Working days / next working day in a date range: weekends + gazetted public holidays

usaref.dev Comms & Messaging 5 calls / 30d checked 2026-10-31
0.002 USDC per call per call

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