# io.github.Nikolife2016/pulsefeed-x402 (remote · pulsefeed.dev)

Verify x402 payment endpoints before an AI agent pays: scam scan, on-chain checks, trust scores.

- Trust score: 72/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `pulsefeed.dev`: 72/100 (this document), [markdown](https://verifymcp.io/servers/nikolife2016-pulsefeed-x402/mcp-server.md), [page](https://verifymcp.io/servers/nikolife2016-pulsefeed-x402/mcp-server)
- npm · `pulsefeed-x402-mcp`: 74/100, [markdown](https://verifymcp.io/servers/nikolife2016-pulsefeed-x402/pulsefeed-x402-mcp.md), [page](https://verifymcp.io/servers/nikolife2016-pulsefeed-x402/pulsefeed-x402-mcp)

## Channel facts

- Endpoint: `https://pulsefeed.dev/mcp-server`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.6`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 74/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 75/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 791 tokens (~79/item across 10 items; 10 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 13/100
  - Stability observed for 4 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### Claude

```bash
claude mcp add --transport http nikolife2016-pulsefeed-x402 https://pulsefeed.dev/mcp-server
```

### Codex

```toml
[mcp_servers.nikolife2016-pulsefeed-x402]
url = "https://pulsefeed.dev/mcp-server"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "nikolife2016-pulsefeed-x402": {
      "type": "remote",
      "url": "https://pulsefeed.dev/mcp-server",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add nikolife2016-pulsefeed-x402 --url https://pulsefeed.dev/mcp-server --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  nikolife2016-pulsefeed-x402:
    url: "https://pulsefeed.dev/mcp-server"
```

### Other

```json
{
  "mcpServers": {
    "nikolife2016-pulsefeed-x402": {
      "type": "http",
      "url": "https://pulsefeed.dev/mcp-server"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-01 (score 71, +3)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-31 (score 68, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-07-30 (score 67)

First indexed and scored.

## MCP tools (10)

### `check_x402_endpoint` (~115 tokens)

Check an x402 endpoint before paying

Before paying an unknown x402 endpoint, check whether it is safe: liveness, trust score (0-100), anomaly flags (receiver address changed between observations, catalog price vs. challenge price, invalid receiver, testnet listed as production, scheme outside the x402 spec), receiver stability and observation-count-qualified uptime — with a pay/avoid verdict. Reads the challenge from both the response body and the v2 PAYMENT-REQUIRED header. Free.

Input parameters:

- `url` (string, required): The x402 endpoint URL to verify

### `mcp_check_server` (~99 tokens)

Audit an MCP server before installing

Before installing an MCP server or npm package, audit it: does it run an INSTALL SCRIPT (arbitrary code execution at `npm i`), is it abandoned, does it ship a repository and license, weekly downloads, provenance — with a safe/caution/avoid verdict. ~11% of audited MCP servers run install scripts. Free.

Input parameters:

- `package` (string, required): npm package name of the MCP server, e.g. @scope/name

### `mcp_security_report` (~62 tokens)

State of MCP security

State of MCP Security: how many audited MCP servers run an arbitrary install script, are abandoned, ship no repository or license — with day-over-day deltas and a sample of currently-flagged servers. From a daily audit of ~950 servers. Free.

### `pulsefeed_products` (~60 tokens)

PulseFeed products and pricing

List PulseFeed's paid products and how to pay via x402 (USDC on Base): deep trust check, endpoint track record, bulk trust dataset, and the cross-domain Data API. Includes the client-side spend-cap gotcha for x402-fetch.

### `x402_changes` (~74 tokens)

Recent x402 ecosystem changes

What changed in the x402 ecosystem recently: services that stopped returning a valid challenge, receiver (payTo) changes, price changes, recoveries, newly-seen services. Derived from compounding time-series that cannot be reconstructed after the fact. Free.

Input parameters:

- `days` (number): Window in days (default 7)

### `x402_data_sample` (~62 tokens)

Free sample of the trust dataset

FREE sample of the PulseFeed Data API: top-10 live x402 services as FULL records (compounding payTo/price history, anomaly flags, on-chain receiver profile), top-10 MCP servers with full audit profile, and 3 live incidents.

### `x402_ecosystem_stats` (~60 tokens)

x402 ecosystem health stats

Live health of the whole x402 agent-payment ecosystem: tracked/alive/dead counts, catalog-accuracy audit (what share of listings called 'healthy' actually work), risk-level distribution, receiver stability and on-chain receiver profiles. Free.

### `x402_incidents` (~98 tokens)

Live x402 security incidents

Anomalies observed in live x402 endpoints by continuous independent measurement: receiver-address changes between observations, catalog price vs. challenge price mismatches, invalid receivers, testnet endpoints listed as production, payment schemes outside the x402 spec — EACH WITH AN ON-CHAIN REFERENCE on Base. Measurements, not accusations of intent. Check before paying anything. Free.

Input parameters:

- `days` (number): Look-back window in days (default 30)

### `x402_leaderboard` (~45 tokens)

x402 trust leaderboard

Top x402 services ranked by the open PulseFeed Trust Score (0-100), with price and network — the most reliable live agent-payment endpoints right now. Free.

### `x402_working_services` (~64 tokens)

List live x402 services

List x402 agent-payment services that are currently ALIVE and return a valid x402 challenge, ranked by PulseFeed Trust Score, plus ecosystem risk map. Use this to pick a service with a track record instead of paying an endpoint you have not checked. Free.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/nikolife2016-pulsefeed-x402/mcp-server#diagnostics

## Score history

- 2026-08-03: 72
- 2026-08-02: 71
- 2026-08-01: 71
- 2026-07-31: 68
- 2026-07-30: 67

## Links

- Remote endpoint: https://pulsefeed.dev/mcp-server
- Repository: https://github.com/Nikolife2016/pulsefeed-x402
- Website: https://pulsefeed.dev/
- Changelog RSS feed: https://verifymcp.io/servers/nikolife2016-pulsefeed-x402/mcp-server/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/nikolife2016-pulsefeed-x402/mcp-server/changelog.json
- HTML version of this page: https://verifymcp.io/servers/nikolife2016-pulsefeed-x402/mcp-server