Skavio USDC Payment Verification & Proof MCP

eu.skavioPublished by skavio.euv1.1.6Updated Nov 7, 2026

USDC x402 proof/DNS and authenticated prepaid OCR, document and audio processing via card or USDC.

The publisher's own server: Mu

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Overview

AI-generated overview

Hosted MCP server for inspecting and matching native USDC transfers, generating blockchain evidence PDFs, auditing DNS/TLS, and running paid document, OCR and…

What you can do
  • Inspect, match and document USDC payments: verify a transfer by hash, confirm an exact recipient and six-decimal amount, and produce a base64 evidence PDF.
  • Audit one public hostname's DNS records and TLS certificate.
  • Fetch, extract text from, or hash-monitor public HTTPS pages through authenticated relays.
  • Process documents: pull text from PDFs, OCR scanned files, extract invoice fields, split or merge PDFs, and transcribe audio or video.
  • Track prepaid work: read job status and results with SHA256, and check the shared credit wallet balance.
  • Discover the paid catalog and free launch status without spending.
When to use it
Useful when an assistant needs to reconcile crypto payments against an expected wallet and amount, or hand an accountant downloadable on-chain proof. Also relevant for teams that want one hosted endpoint for paid OCR, invoice extraction, PDF handling and audio transcription.
Requirements
Remote Streamable HTTP endpoint; no local package. Free discovery and unpaid 402 challenges need no wallet. Paid blockchain and domain tools require an x402-capable wallet client that can sign native USDC on Base or Solana; plain MCP clients cannot pay automatically. Processing relays need an Agent Tools Bearer key in the Authorization header plus prepaid credits or an accepted quote.
Before you install
Paid tools spend real USDC per call (for example 0.02 to 0.05 USDC), so inspect the PaymentRequired amount, asset and recipient before authorizing. Never share seed phrases or private keys; signing stays in your own wallet. Processing relays require a Bearer API key and send uploaded documents and audio to a third party. Evidence PDFs are not tax invoices, and results depend on RPC availability and finality.

Installation

In SourceWeft

  1. Open Skavio USDC Payment Verification & Proof MCP in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/eu.skavio%2Fpaid-micro-apis/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "skavio-usdc-payment-verification-proof": {
      "type": "http",
      "url": "https://getskavio.com/mcp"
    }
  }
}

README

Skavio Agent Tools

New verified integration: Safe x402 buyer example — Node.js + Python. Free live HTTP 402 preview with no signup or wallet, plus opt-in Base USDC paid adapter with a per-call limit. No funded purchase is made by default. No-account visual examples.

[Skavio USDC Paid Micro-APIs MCP server — mcprush tool-list rating]

Official connection metadata and documentation for Skavio LLC's hosted MCP tools and x402 HTTP API. This repository contains discovery metadata, not the production server source.

Card-funded Agent Tools processing (no crypto wallet)

For authenticated Agent Tools document, OCR, invoice and audio processing, an administrator signs in to the Agent Tools Dashboard, selects Buy credits by card, chooses $5, $10, $20, $50, $100, $200 or $500, and completes a Stripe-hosted checkout. Verified settlement funds that same bound company wallet at 1 USD = 1,000 credits. Eligible jobs can then use the company's Agent Tools key with payment_mode=prepaid. USDC top-ups remain available.

Do not mix payment rails: the separate company Agent Tools MCP endpoint is https://getskavio.com/agent-tools/mcp, and OAuth Processing MCP is https://getskavio.com/processing/mcp. The four independently priced blockchain verification/DNS tools on https://getskavio.com/mcp and the paid HTTP x402 routes still require native USDC via x402. Card credits do not authorize those four calls, and neither MCP credential can initiate card charges.

Verification as of November 7, 2026: card checkout interface and private company binding deployed, isolated security and transactional ledger tests passed, and a Stripe TEST-mode unpaid $5 checkout was created and expired. A real paid external card-to-MCP completed job E2E has not yet been verified. Agent Tools docs · Prices.

Partner review / data-handling facts: public USDC MCP integration facts. Maintainer: Skavio LLC; email: [email protected]. GitHub contains metadata and documentation, not production source. Live runtime reports 1.30.0; registry descriptor 1.1.5 is independently versioned.

New practical guide: Verify an incoming USDC transfer from an AI agent using x402 — live 0.02/0.03/0.05 USDC operation prices, free HTTP 402 discovery and payment-safe steps. Try the hosted endpoint.

LIVE — DeepSeek-only x402 HTTP Web APIs: Seven-route discovery · OpenAPI. These four paid HTTP endpoints are separate from tenant-authenticated MCP Agent Tools:

x402 HTTP toolRouteNative Base USDC per request
Web FetchPOST /x402/v1/web/fetch0.01
Web SearchPOST /x402/v1/web/search0.02
Web ExtractPOST /x402/v1/web/extract0.02
Extract + AnalyzePOST /x402/v1/web/extract/analyze0.03

All four use DeepSeek Search, Fetch or Flash with no alternate provider. An unsigned call returns an x402-v2 HTTP 402 quote; compatible clients sign and retry with PAYMENT-SIGNATURE. One real 0.01 USDC Web Fetch purchase on 28 October 2026 settled and delivered the requested result. Do not assume the other three have independent funded checkout results. Keys and signing remain in the buyer's wallet.

Separate authenticated company Agent Tools: Legacy enterprise API integration notes. Those older web operations and their provider migration are not part of this new DeepSeek-only paid HTTP release.

Use Skavio in Cursor and Claude Desktop

Connection instructions and ready-to-copy Cursor / Claude Desktop JSON · Cursor config · Claude Desktop config. The publicly discoverable MCP server is https://getskavio.com/mcp; separate OAuth-protected Processing MCP is at https://getskavio.com/processing/mcp. Plain MCP clients do not automatically process x402 payments.

Connect an MCP client using Streamable HTTP at https://getskavio.com/mcp. Discovery and the skavio_catalog tool are free. Paid invocations use x402 MCP v2: inspect PaymentRequired, then retry with an authorization supplied by your wallet client in params._meta["x402/payment"]. Keep wallet keys in your own client. Paid MCP invocations accept native Circle USDC via x402 v2 on Base (eip155:8453) or Solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp). The standalone HTTP Verify, Match and Evidence PDF routes accept Base USDC only. Obtain current payment requirements from the service.

ToolAdvertised USDC per invocationPurpose
skavio_catalogFreeDiscover capabilities
verify_native_usdc0.02Inspect native USDC transfer evidence
match_native_usdc_payment0.03Match recipient and exact amount
usdc_transfer_evidence_pdf0.05Receive bounded blockchain evidence PDF
domain_dns_tls_audit0.05Bounded public-domain DNS/TLS audit

Transfer inspection supports Base, Polygon, Arbitrum, Optimism, Ethereum, Avalanche and Solana. MCP x402 payment supports Base and Solana; the standalone HTTP x402 routes remain Base-only. Evidence PDFs are not tax invoices.

HTTP documentation: https://getskavio.com/x402/docs

The three established Base USDC verification routes remain public: /x402/v1/usdc/verify, /x402/v1/usdc/match, and /x402/v1/usdc/evidence.pdf. Four additional paid DeepSeek web POST routes are listed above; all seven are indexed in the canonical discovery document.

Public unsigned challenge and discovery checks do not establish successful funded settlement or profitability. No revenue claim is made. The current public tools/list also advertises tenant-authenticated document, OCR, invoice, audio and web Agent Tools. These require a valid Agent Tools credential and cannot be used anonymously. The separate OAuth-protected Processing API and its developer kit are at https://github.com/skavio-eu/skavio-processing-api.

Published in the official MCP Registry as eu.skavio/paid-micro-apis, version 1.1.5: https://registry.modelcontextprotocol.io/v0.1/servers/eu.skavio%2Fpaid-micro-apis/versions/1.1.5. Other directory registrations are tracked separately. Prices and capabilities may change; inspect current server responses before authorizing payment.

USDC payment verification for AI agents

Skavio USDC Payment Verification — x402 API inspects native Circle USDC transfers, matches an exact recipient and decimal amount, and generates blockchain evidence PDFs. Use it for merchant payment reconciliation, accountant transaction review and agent workflows. PDF evidence is not a tax invoice or a guarantee of third-party authorization.

  • HTTP Verify: 0.02 native USDC; Match: 0.03 USDC; PDF: 0.05 USDC. Payment settles separately on Base through x402 v2. Inspection supports Base, Polygon, Arbitrum, Optimism, Ethereum, Avalanche and finalized Solana.
  • API quickstart, schemas, errors and client configurations · seven-route discovery · OpenAPI.
  • Skavio USDC Payment Verification & Proof MCP, version 1.1.5. Stable registry namespace and tool IDs are unchanged. Connect using https://getskavio.com/mcp (Streamable HTTP).
  • MCP has four paid blockchain/domain tools (verify_native_usdc, match_native_usdc_payment, usdc_transfer_evidence_pdf, domain_dns_tls_audit), two free discovery tools, and twelve separate authenticated AgentTools processing/job/wallet relays. The DNS/TLS audit is 0.05 USDC and is not a vulnerability scan.
  • A standard MCP client without a wallet x402 extension cannot automatically pay. Discovery is free. Paid MCP retries preserve params._meta["x402/payment"]; HTTP retries use PAYMENT-SIGNATURE. Never send a private key or seed phrase. No custody or automatic spending is created by adding a server.
  • PayAPI publishes separate live listings and historical settlement receipts for HTTP Verify, 0.02 USDC, exact recipient/amount Match, 0.03 USDC, and blockchain PDF evidence, 0.05 USDC. Each route was independently read back on 2026-10-17, and each prior Base USDC receipt was checked read-only. No new payment was made for this documentation update. This is blockchain evidence, not a tax invoice.
  • RPC availability and finality affect results. No fixed latency SLA is promised. EVM requests use a 32-byte 0x hash; Solana uses its transaction signature. Match takes a recipient wallet and a positive exact USDC decimal string with at most six decimal places.

Cursor .cursor/mcp.json:

json
{"mcpServers":{"skavio-usdc":{"url":"https://getskavio.com/mcp"}}}

Claude Code:

sh
claude mcp add --transport http skavio-usdc https://getskavio.com/mcp

Claude Desktop with Node.js and a reviewed stdio-to-HTTP bridge:

json
{"mcpServers":{"skavio-usdc":{"command":"npx","args":["-y","mcp-remote","https://getskavio.com/mcp"]}}}

The bridge may download a third-party package and does not supply wallet payment support. Current Desktop remote connectors may accept the HTTPS URL directly.

First unpaid request (no signing or transfer):

sh
curl -i 'https://getskavio.com/x402/v1/usdc/verify?tx_hash=0x98809948204426c574b6f0aabdec03baa996b5c43ce28cc9ca704fa5d07e592e&network=base'

Expect HTTP 402 and decode PAYMENT-REQUIRED. Inspect the exact amount, Base USDC asset and recipient before authorizing an x402 wallet client; only then retry the same request. After an ambiguous response, inspect recovery state instead of blindly paying again.

Separate Skavio PDF, OCR & Document Processing MCP, version 0.2.8, uses company OAuth at https://getskavio.com/processing/mcp and shared prepaid credits. Processing docs explain company ownership and measured jobs. Optional AgentTools relays require the caller's own key and current backend availability; preserve the idempotency key, poll status, download results and verify SHA256. HTTP /x402/v1/processing stays disabled.

Source: README.md at commit ba52afd

Tools

18

skavio_launch_status

Launch status

Free production availability status, including explicitly disabled processing functions. No execution or charge. Returns activation and owner-funded historical payment journal evidence separately from approved pricing and unverified realized profitability.

Takes no parameters.

skavio_catalog

Catalog

Free discovery of Skavio paid MCP tools, prices, and networks. No access to customer data. Returns four paid prices in USDC, inspection networks, separate processing authentication and activation limits. No call submits a job or spends funds.

Takes no parameters.

verify_native_usdc

Verify native USDC transaction

Inspect a completed native Circle USDC transfer by transaction hash on a supported chain (Base, Polygon, Arbitrum, Optimism, Ethereum, Avalanche or Solana). Use for transaction evidence; use match_native_usdc_payment to require an exact recipient and six-decimal amount, or usdc_transfer_evidence_pdf to obtain a PDF. This call does not initiate transfers or establish payment to a particular invoice. Costs 0.02 USDC via x402 v2; the paid MCP accepts Base or Solana USDC subject to wallet approval. Public-chain RPC finality and availability vary.

Parametersnetworktx_hashrequired

match_native_usdc_payment

Match exact USDC recipient and amount

Confirm an exact native Circle USDC recipient and six-decimal transfer amount for a completed transaction on a supported EVM chain or Solana, with chain-specific finality checks. Use when reconciling a payment with an expected wallet and amount; for inspecting a transfer without expected values choose verify_native_usdc; for a PDF choose usdc_transfer_evidence_pdf. Requires tx_hash, recipient and amount, does not send funds or create an invoice. Costs 0.03 USDC via x402 v2; paid MCP wallets can pay native USDC on Base or Solana.

Parametersamountrequirednetworktx_hashrequiredrecipientrequired

usdc_transfer_evidence_pdf

USDC blockchain transfer evidence PDF

Generate a bounded base64-encoded PDF containing publicly verifiable native Circle USDC transaction evidence for an existing on-chain transfer. Use when a customer or accountant needs a downloadable blockchain proof, not when you need a machine-readable exact recipient and amount check (use match_native_usdc_payment) or a simple transaction lookup (use verify_native_usdc). The PDF is not an invoice, tax receipt or authorization. No custody or transfers. Costs 0.05 USDC via x402 v2 on Base or Solana MCP.

Parametersnetworktx_hashrequired

domain_dns_tls_audit

Public domain DNS and TLS audit

Audit the public DNS records and TLS certificate of ONE public hostname, using bounded DNS resolution and a TLS handshake to port 443. Use for a basic hostname/certificate check; do not use for web content fetching (web_fetch), page extraction (web_extract), vulnerability scanning, port scanning or private IP networks. Input is a hostname such as example.com, not a URL. Returns TLS validity, resolved public IPs, TLS version and certificate expiry where available; no HTTP request. Costs 0.05 native USDC via x402 v2 on Base or Solana MCP.

Parametersdomainrequired

web_fetch

Web fetch

Retrieve content from a public HTTPS document under robots.txt, SSRF and byte limits. Use for a source fetch; choose web_extract when only human-visible text is needed and web_monitor for content change hashes. This is a separately authenticated company Agent Tools relay; requires a valid Bearer API key, an enabled backend operation and an accepted payment mode. x402 returns a workload-specific quote and prepaid consumes shared company credits. Retry with the SAME idempotency_key and inputs to recover, not a new job. Admission is not delivery: poll skavio_agent_job_status, retrieve through skavio_agent_job_result, and verify SHA256. No anonymous execution.

Parametersargumentsrequiredpayment_modeidempotency_keyrequired

web_extract

Web extract

Extract human-visible text from one public HTTPS page under robots and size limits. Use for readable page text, not raw document fetching (web_fetch) or SHA256 change detection (web_monitor). This is a separately authenticated company Agent Tools relay; requires a valid Bearer API key, an enabled backend operation and an accepted payment mode. x402 returns a workload-specific quote and prepaid consumes shared company credits. Retry with the SAME idempotency_key and inputs to recover, not a new job. Admission is not delivery: poll skavio_agent_job_status, retrieve through skavio_agent_job_result, and verify SHA256. No anonymous execution.

Parametersargumentsrequiredpayment_modeidempotency_keyrequired

web_monitor

Web monitor

Measure a public HTTPS page's content hash, optionally comparing the previous SHA256 supplied by the caller. Use for detecting changes; choose web_fetch to retrieve the document or web_extract for just visible text. This is a separately authenticated company Agent Tools relay; requires a valid Bearer API key, an enabled backend operation and an accepted payment mode. x402 returns a workload-specific quote and prepaid consumes shared company credits. Retry with the SAME idempotency_key and inputs to recover, not a new job. Admission is not delivery: poll skavio_agent_job_status, retrieve through skavio_agent_job_result, and verify SHA256. No anonymous execution.

Parametersargumentsrequiredpayment_modeidempotency_keyrequired

pdf_to_text

Pdf to text

Extract embedded selectable text from a PDF supplied as base64. Use for text-layer PDFs; use document_ocr when pages are scanned images, and invoice_extract for structured invoice fields. This is a separately authenticated company Agent Tools relay; requires a valid Bearer API key, an enabled backend operation and an accepted payment mode. x402 returns a workload-specific quote and prepaid consumes shared company credits. Retry with the SAME idempotency_key and inputs to recover, not a new job. Admission is not delivery: poll skavio_agent_job_status, retrieve through skavio_agent_job_result, and verify SHA256. No anonymous execution.

Parametersargumentsrequiredpayment_modeidempotency_keyrequired

document_ocr

Document ocr

Apply optical character recognition to a scanned document supplied as base64 and return searchable extracted text. Use when the document lacks a usable text layer; use pdf_to_text for selectable PDF text and invoice_extract for invoice fields. This is a separately authenticated company Agent Tools relay; requires a valid Bearer API key, an enabled backend operation and an accepted payment mode. x402 returns a workload-specific quote and prepaid consumes shared company credits. Retry with the SAME idempotency_key and inputs to recover, not a new job. Admission is not delivery: poll skavio_agent_job_status, retrieve through skavio_agent_job_result, and verify SHA256. No anonymous execution.

Parametersargumentsrequiredpayment_modeidempotency_keyrequired

invoice_extract

Invoice extract

Extract structured invoice fields from one uploaded document, with source page count verified and a per-page cost quote. Use for invoice metadata, not generic OCR (document_ocr) or plain selectable text (pdf_to_text). This is a separately authenticated company Agent Tools relay; requires a valid Bearer API key, an enabled backend operation and an accepted payment mode. x402 returns a workload-specific quote and prepaid consumes shared company credits. Retry with the SAME idempotency_key and inputs to recover, not a new job. Admission is not delivery: poll skavio_agent_job_status, retrieve through skavio_agent_job_result, and verify SHA256. No anonymous execution.

Parametersargumentsrequiredpayment_modeidempotency_keyrequired

audio_transcribe

Audio transcribe

Transcribe a bounded source audio or video file supplied as base64 to text. Use for spoken media; not for OCR, invoice parsing, or PDF content conversion. This is a separately authenticated company Agent Tools relay; requires a valid Bearer API key, an enabled backend operation and an accepted payment mode. x402 returns a workload-specific quote and prepaid consumes shared company credits. Retry with the SAME idempotency_key and inputs to recover, not a new job. Admission is not delivery: poll skavio_agent_job_status, retrieve through skavio_agent_job_result, and verify SHA256. No anonymous execution.

Parametersargumentsrequiredpayment_modeidempotency_keyrequired

pdf_split

Pdf split

Select one-based page numbers from an uploaded PDF and return a new document containing those pages. Use to extract pages; use pdf_merge to concatenate two to five whole PDFs or pdf_to_text for reading text. This is a separately authenticated company Agent Tools relay; requires a valid Bearer API key, an enabled backend operation and an accepted payment mode. x402 returns a workload-specific quote and prepaid consumes shared company credits. Retry with the SAME idempotency_key and inputs to recover, not a new job. Admission is not delivery: poll skavio_agent_job_status, retrieve through skavio_agent_job_result, and verify SHA256. No anonymous execution.

Parametersargumentsrequiredpayment_modeidempotency_keyrequired

pdf_merge

Pdf merge

Combine two to five uploaded base64-encoded PDF documents into one output document, preserving the supplied order. Use to concatenate files; use pdf_split to select pages from one PDF or pdf_to_text to extract text. This is a separately authenticated company Agent Tools relay; requires a valid Bearer API key, an enabled backend operation and an accepted payment mode. x402 returns a workload-specific quote and prepaid consumes shared company credits. Retry with the SAME idempotency_key and inputs to recover, not a new job. Admission is not delivery: poll skavio_agent_job_status, retrieve through skavio_agent_job_result, and verify SHA256. No anonymous execution.

Parametersargumentsrequiredpayment_modeidempotency_keyrequired

skavio_agent_job_status

Agent job status

Read your owned processing job and result manifest; no new payment. Input is your original idempotency key. Returns state, reservation, availability and any owned result IDs; only available results may be downloaded.

Parametersidempotency_keyrequired

skavio_agent_job_result

Agent job result

Download your owned completed processing result as base64 with SHA256; no new payment. Input result_id must come from your completed owned manifest. Returns data_base64, sha256 and delivered=true, or an explicit error; independently verify the checksum.

Parametersresult_idrequiredidempotency_keyrequired

skavio_agent_wallet

Agent wallet

Read your authoritative shared credit wallet; no new payment. Returns balance_credits, available_credits, reserved_credits and USD display strings with ledger_source. It does not fund, reserve, move or spend credits.

Takes no parameters.

Version history

7
  1. v1.1.6LatestNov 7, 2026
  2. v1.1.5Oct 29, 2026
  3. v1.1.3Oct 20, 2026
  4. v1.1.2Oct 18, 2026
  5. v1.1.1Oct 17, 2026
  6. v1.1.0Oct 14, 2026
  7. v1.0.0Oct 12, 2026

Score

90% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.

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