MCP.Market

XGuard — Payment Decision & Discovery MCP server

online · 100% uptime
by moelayyan90·io.github.moelayyan90/xguard·v0.6.2
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Payment decisions, durable evidence, x402 resource discovery and live gateway status for AI agents.

D43/100grade D
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Safety scan
D43/100

full report

Adoption
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XGuard — Payment Decision & Discovery tools (8, 1 write)

write = sends, deletes, buys or posts
  • xguard_discoverFree

    Find the paid API catalog and buying instructions, plus explicit provider operations and input schemas.

  • xguard_executewrite actionFree

    Execute an explicit scoped provider operation, or a supported public-source outcome. intent:demo is free. Never infer a mutation from ambiguous text.

  • xguard_get_resultFree

    Recover a paid public outcome with its payment identifier and original signed quote without execution or another payment.

  • xguard_preflightFree

    Inspect validation, scope and remaining capability budget without reserving, billing or executing. Execution rechecks everything.

  • xguard_quoteFree

    Inspect XGuard credit pricing for a capability, or obtain a signed x402 quote for a public outcome. Does not execute.

  • xguard_secretless_callFree

    Call an allowed provider operation with a capability. Enforces scope, call/credit budget and billing before server-side credential injection. Writes require idempotency_key.

  • xguard_statusFree

    Read observed execution/MCP metrics and configuration; empty observations do not imply uptime.

  • xguard_verify_receiptFree

    Verify a ProofRail proof and optionally its bound x402 receipt and result digest. Signature validity does not prove source truth.

Public scan report

scanner v0.1.10 · 2026-11-03 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote unreachable: Streamable HTTP error: Error POSTing to endpoint: {"error":"method_not_allowed"}0/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityno auth information5/15
  • Maintenancelast push 7 days ago15/15
  • Maintainer identityregistry namespace matches repository owner6/10

Findings (1)

  • highRemote endpoint did not respondreliability.unreachable

    Streamable HTTP error: Error POSTing to endpoint: {"error":"method_not_allowed"}

Overall 43/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How XGuard — Payment Decision & Discovery compares

Against every graded Finance MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
43/100
higher than 10% of 1,761 Finance servers
Tools
8
the typical Finance server has 8
Tools that change things
13%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote Finance server answers 100%
Response time
234 ms
faster than 60% of 1,133 Finance servers

What its tools let an agent do: 7 read · 1 change

Install XGuard — Payment Decision & Discovery in Claude Code, Cursor or VS Code

claude mcp add --transport http xguard https://xguardgate.com/mcp
Add to Cursor

What the publisher says

From the XGuard — Payment Decision & Discovery repository's README, as published. We do not edit it. Read it on GitHub

XGuard — Paid API Gateway

Turn any API into a paid API for AI agents.

Register an existing HTTPS API, choose a request price and payout wallet, and share one paid URL. XGuard quotes, verifies and settles authorized payments, executes the request, returns a signed receipt and records platform fees and seller proceeds separately.

  • Monetize your API
  • Browse paid APIs
  • Gateway, fees, payout setup and buyer recovery
  • Small Workers, Express and FastAPI integrations
  • Revenue-path audit and acceptance limits

External seller routes stay draft without configured payout signing authority. A successful test is not a real customer payment. Production revenue acceptance requires a funded owner-authorized purchase and recorded settlement/delivery.

Scoped agent execution

Give agents capabilities, not reusable credentials.

Store a provider credential on the server, issue a scoped capability, and let an agent execute one authorized operation. XGuard enforces policy, expiration, revocation, budgets and idempotency before injecting the credential. Every completed execution returns a durable result and signed ProofRail evidence.

This branch contains the 5.2.0 release candidate. Its deployment is tracked in the release audit; the production version is reported by identity.

  • Operator setup: keep operator/provider keys out of agent context.
  • Agent contract: MCP, REST, JavaScript and Python examples.
  • Connect MCP: https://api.xguardgate.com/mcp.
  • Payment and recovery contract.
import { createExecutionClient } from './sdk/execution.js';
const agent = createExecutionClient({ capability: process.env.XGUARD_CAPABILITY });
const request = {
  operation: 'github.repository.read',
  input: { owner: 'moelayyan90', repo: 'XGuard' },
  idempotencyKey: 'read-xguard-repository-001'
};
await agent.preflight(request);
const output = await agent.execute(request);
// Retain the same key and exact input for recovery; never retry an uncertain write with a new key.
await agent.verify({ proof: output.proof, resultSha256: output.receipt.result_sha256 });

Sixteen explicit adapters cover bounded GitHub, Cloudflare, Slack, Notion, OpenAI, Anthropic, Gemini and Stripe operations. Provider permissions and fees remain operator-specific. Cloudflare deploys and Stripe money movement are not advertised. The free controlled Secretless demo proves authentication, scope denial, once-only execution and signature verification without an external provider or payment.

Public outcome examples

Public page extraction, product offers and feed digests remain secondary examples with their original prices and payment contracts.

Get your first result without an account, key, wallet or installation:

curl https://api.xguardgate.com/v1/execute \
  -H 'content-type: application/json' \
  -d '{"intent":"demo"}'

This runs the real extraction parser on labelled sample HTML. Supply html to process up to 12 KiB of your own document for free. The preview makes no external requests.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Grade history

  • 2026-11-03downgradeB → Dscore 43: Remote endpoint did not respond

XGuard — Payment Decision & Discovery: common questions

Is XGuard — Payment Decision & Discovery MCP server safe?
Not recommended: it is graded D (43/100). Read the XGuard — Payment Decision & Discovery safety report
How do I install XGuard — Payment Decision & Discovery?
It runs remotely at xguardgate.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does XGuard — Payment Decision & Discovery need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is XGuard — Payment Decision & Discovery maintained?
The last commit was 8 days ago (2026-10-27). The latest release is v0.6.2.
Is XGuard — Payment Decision & Discovery up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of XGuard — Payment Decision & Discovery?
Servers from other publishers that do the same job: Boundra — Payment Approval Gateway for AI Agents MCP server, three.ws Agent Payments MCP server and X402 List MCP server.
How does XGuard — Payment Decision & Discovery compare with other Finance MCP servers?
safety score 43/100 (higher than 10% of 1,761 Finance servers); tools 8 (the typical Finance server has 8); tools that change things 13% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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