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Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Payments & trading

dev.kgninja/check-payment-recipient

By kgninja.dev

Payment safety check for AI agents before signing. $0.05 per check; $0.50 batch (20). Via x402.

Finance & paymentsAI models & agents
Connect to dev.kgninja/check-payment-recipient
Checks passed
9 / 22

5 failed · 8 not measured

Median response
183 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
5

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
130
Publisher identityCan the publisher be traced to its source?
222

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 183 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name check-payment-recipient.

  • Pass
    Lists tools

    tools/list returned 5 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 183 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 183 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Fail
    Tools described

    1 tools have a description shorter than 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    1 of 12 parameters have a description (8%). The bar is 80%.

  • Fail
    Safety hints

    5 tools set neither readOnlyHint nor destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Fail
    Website matches publisher

    The website host does not match the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-07T06:03:49.163673Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using dev.kgninja/check-payment-recipient

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http dev-kgninja-check-payment-recipient https://check-payment-recipient.fuwafuwow.workers.dev/mcp

Capabilities

Tools 5

check_payment_batch

Paid ($0.50, x402 v2 exact): batch pre-signing safety check — 1 to 20 payment checks in ONE paid call. Each item takes exactly the same fields as check_payment_recipient and gets its own decision; the result carries per-item decisions plus a summary {total, allow, escalate, block, input_error}. An item with invalid fields is reported per item as INPUT_ERROR and does not fail the batch. Envelope errors (missing batch idempotency_key, items not an array of 1-20) are returned before payment and are never charged. On an uncertain outcome, reuse the same batch idempotency_key; a replay returns the stored result without a new payment.

Discovered
check_payment_recipient

Paid ($0.05, x402 v2 exact): pre-signing safety check of a planned payment. Returns allow / escalate / block with reasons, evidence and a verifiable receipt. Input errors are returned before payment and are never charged. On an uncertain outcome, reuse the same idempotency_key; a replay returns the stored receipt without a new payment.

Discovered
get_receipt

Free: fetch a stored receipt by receipt_id or idempotency_key. Use it to reconcile an uncertain payment before ever paying again.

Discovered
list_capabilities

Free discovery: price, networks, rule set and list coverage for check_payment_recipient.

Discovered
ping

Free health check.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected183 ms5

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