Invoice Preflight x402 MCP
io.github.ahmet11159/invoice-preflightInvoice checks for AI agents: UBL/PDF/image, line items, evidence, free tier quote, x402 USDC.
Score: 100/100
Handshake verified by our own probe.
Tools · 24
Action Lock ($0.001 USDC): Prevent duplicate side effects across agent retries, crashes, and concurrent workers. If an action has side effects and may be retried or executed concurrently, acquire befo…
Enforce autonomous-agent budgets before paid actions. Call before spending; authorize, commit, release, or inspect an opaque reservation. Do not use for free operations or an equivalent trusted budget…
Check whether an owner-configured policy authorizes this capability for the verified caller. Permission check only; agents cannot grant themselves permission. This is authorization, not action safety.…
Create or verify a tamper-evident receipt of an agent-reported outcome. It proves DropEngine recorded a claim, not that the external event independently occurred. Do not send raw payloads or secrets. …
FREE, no wallet or document upload: choose the lowest priced Invoice Preflight tool from document type, PDF page count, and optional byte size. Call this before a paid invoice tool when the tier is un…
MCP server health check ($0.01 USDC on Base): connect to any public MCP endpoint over HTTPS, confirm it is reachable, list its tool names and input-schema summaries, compare against expected tool name…
Paid Agent Preflight URL check ($0.005 USDC on Base). Call before an agent opens, follows, downloads from, or trusts an unknown URL. Performs deterministic checks, safely inspects HTTPS redirects with…
Paid Untrusted Content Security Layer ($0.005 USDC on Base). Scan untrusted text, HTML, Markdown, email, document text, API responses, and tool outputs before your agent adds them to context, follows …
Paid Transaction Preflight ($0.02 USDC on Base). Simulates an unsigned Base transaction before an autonomous agent signs or broadcasts it. Returns RPC execution/revert status, gas estimate, known top-…
Paid Wallet Risk Check ($0.02 USDC on Base). Call before an agent sends funds to, accepts value from, grants an approval to, or interacts with an unfamiliar address. Checks whether the address is a wa…
Paid Package Safety Gate ($0.005 USDC on Base). Call before a coding agent installs, imports, or adds an unfamiliar npm dependency. Checks resolved package/version, OSV vulnerabilities and malware adv…
Paid Agent Tool Router ($0.002 USDC on Base). Finds and ranks machine-payable MCP services and x402 HTTP endpoints before your agent chooses or pays a provider. Uses structured capability matching, ha…
Paid Live Product Quote ($0.01 USDC). Retrieves explicitly published product price and stock from a public HTTPS product page before an agent buys; shipping, tax and unknown values remain null. Never …
Paid Fresh Structured Extract ($0.01 USDC). Extracts a fresh webpage into a simple agent-defined typed JSON shape, with validation and per-field provenance. Uses static page data only; never executes …
Paid Change / Diff Check ($0.001 USDC). Checks normalized text on a public HTTPS page against a previous SHA-256 hash, returning a compact diff when a prior snapshot is available. Agent entry points:…
Paid Freshness / Claim Verifier ($0.02 USDC). Checks a factual claim against fresh web search evidence and returns supported/contradicted/mixed/insufficient/stale with sources. Requires TAVILY_API_KEY…
Paid Whale Intelligence ($0.02 USDC). Summarizes large public GeckoTerminal-indexed DEX trades for a token address on a supported chain. Large-trader labels are size-based heuristics, not verified wha…
Paid Arbitrage Intelligence ($0.03 USDC). Compares Binance and Coinbase public spot order books at a requested trade size and applies caller- or server-configured taker fee assumptions. Rejects stale …
Paid Strategy Backtest ($0.10 USDC). Tests built-in long-only spot strategies against bounded public Binance OHLCV history. Signals form at candle close and execute at the next candle open. Applies co…
Agent Action Gate ($0.02 USDC flat; stable MCP tool name preflight_action). Use before an AI agent performs an external action. Evaluates the required safety, trust, spending and transaction checks an…
Paid Token Security Audit ($0.01 USDC). Normalizes GoPlus token-security flags and public EVM RPC metadata for supported EVM tokens. Configure GOPLUS_ACCESS_TOKEN or explicitly enable the bounded publ…
Paid invoice check ($0.065 USDC on Base): UBL XML or complete PDF/image invoices up to 3 pages. Compares expected purchase fields and line items; returns evidence, amount checks and match/discrepancy/…
Paid invoice OCR ($0.13 USDC on Base): process complete PDF/image invoices up to 10 pages. Oversized PDFs are rejected before OCR. Agent entry points: risky external action → use Agent Action Gate wh…
Paid invoice OCR ($0.475 USDC on Base): process complete PDF/image invoices up to 50 pages. Oversized PDFs are rejected before OCR. Agent entry points: risky external action → use Agent Action Gate w…
How to use
Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://mcp.dropenginehq.com/api/paid-mcp
Cursor or Cline: add to your MCP config:
{
"mcpServers": {
"invoice_preflight_x402_mcp": {
"url": "https://mcp.dropenginehq.com/api/paid-mcp",
"transport": "streamable-http"
}
}
}