PathCourse Health (PCH)
NPM · @PATHCOURSE/MCP-SERVER · 2 COMPONENTS · SCANNED SEP 20
Cheaper LLM inference, USDC agent payments via x402, agent identity / reputation lookup.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 31 of 96 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 132 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability77
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 783 tokens (~55/item across 14 items; 14 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management90
- Stability observed for 27 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage89
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 67% of tool parameters carry a description.Partial
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "pch_pay" implies "pay" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 14 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the PathCourse Health (PCH) MCP server?
PathCourse Health (PCH) runs locally as an npm package, launched with npx -y @pathcourse/mcp-server. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @pathcourse/mcp-server
claude mcp add pathcourse-health-mcp-server -- npx -y @pathcourse/mcp-server
{
"mcpServers": {
"pathcourse-health-mcp-server": {
"command": "npx",
"args": [
"-y",
"@pathcourse/mcp-server"
]
}
}
} {
"servers": {
"pathcourse-health-mcp-server": {
"command": "npx",
"args": [
"-y",
"@pathcourse/mcp-server"
]
}
}
} codex mcp add pathcourse-health-mcp-server -- npx -y @pathcourse/mcp-server
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"pathcourse-health-mcp-server": {
"type": "local",
"command": [
"npx",
"-y",
"@pathcourse/mcp-server"
],
"enabled": true
}
}
} openclaw mcp add pathcourse-health-mcp-server --command npx --arg -y --arg @pathcourse/mcp-server
mcp_servers:
pathcourse-health-mcp-server:
command: "npx"
args: ["-y", "@pathcourse/mcp-server"] {
"McpServers": {
"pathcourse-health-mcp-server": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"@pathcourse/mcp-server"
]
}
}
} assistant mcp add pathcourse-health-mcp-server -t stdio -c npx -a -y @pathcourse/mcp-server
{
"mcpServers": {
"pathcourse-health-mcp-server": {
"command": "npx",
"args": [
"-y",
"@pathcourse/mcp-server"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Sept 26 −3
- Stability: pass → 0.80 functional
- 16 Sept 26 +1
- Stability: 0.97 → pass security
- Security disclosure: unverified → fail ▼ functional
- 15 Sept 26 0
- Security disclosure: fail → unverified ▼ functional
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 −3
- Stability: pass → 0.80 functional
- 9 Sept 26 +1
- Stability: 0.97 → pass security
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Analysed npm/@pathcourse/mcp-server@1.0.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 96 packages
| Packages resolved | 96 |
|---|---|
| Stale | 31 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
pch_balance ~26
Check your remaining USDC balance and current tier. Uses your PCH_API_KEY.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
pch_check_agent_reputation ~56
Deeper reputation lookup: trust recommendation, total settled, months active, capabilities verified. Costs $0.001 USDC per query (deducted from your PCH balance).
| Name | Type | Req | Description |
|---|---|---|---|
| agent_id | string | yes | – |
No output schema declared.
No examples provided.
pch_compare_costs ~87
Compare the cost of running a prompt across PCH models and major third-party providers (gpt-4o, claude-sonnet-4, claude-haiku-4-5). Useful for budgeting. No API key required.
| Name | Type | Req | Description |
|---|---|---|---|
| estimated_tokens | number | yes | Total tokens (input + output) |
| tier | string | – | PCH tier (default uncertified) |
No output schema declared.
No examples provided.
pch_estimate ~73
Estimate the cost of an inference request before running it. Useful for budgeting. No authentication required.
| Name | Type | Req | Description |
|---|---|---|---|
| estimated_tokens | number | yes | Estimated total tokens (or images/characters/minutes per the model billing unit) |
| model | string | yes | – |
| tier | string | – | Your certification tier (default uncertified) |
No output schema declared.
No examples provided.
pch_get_agent_history ~48
Twelve-month trend of an agent's Path Score broken into payment / volume / reliability / age / diversity components. Public, no API key required.
| Name | Type | Req | Description |
|---|---|---|---|
| agent_id | string | yes | – |
No output schema declared.
No examples provided.
pch_get_path_score ~42
Look up an agent's Path Score (0-1000) and tier. Public, no API key required.
| Name | Type | Req | Description |
|---|---|---|---|
| agent_id | string | yes | – |
No output schema declared.
No examples provided.
pch_inference ~82
Run LLM inference on a PCH model. Returns the model response. Uses your PCH_API_KEY from environment.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | number | – | Maximum tokens to generate (default 500) |
| model | string | yes | Model to use |
| prompt | string | yes | The user message/prompt |
| system | string | – | Optional system message |
No output schema declared.
No examples provided.
pch_lookup_agent_identity ~52
Look up an agent's ERC-8004 identity record (cert tier, Path Score, services). Public, no API key required.
| Name | Type | Req | Description |
|---|---|---|---|
| agent_id | string | yes | The agent_id to look up |
No output schema declared.
No examples provided.
pch_models ~27
List all PCH models with pricing, tier requirements, and descriptions. No authentication required.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
pch_my_account ~31
Self-service dashboard: balance, certification, models available, recent activity. Uses your PCH_API_KEY.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
pch_pay ~129
Submit USDC payment proof after sending the deposit. Completes the x402 payment flow and returns your API key plus the first inference result. Call pch_provision first to get the payment_context_id and treasury wallet.
| Name | Type | Req | Description |
|---|---|---|---|
| buyer_wallet | string | yes | Your wallet address that sent the USDC |
| max_tokens | number | – | – |
| model | string | – | – |
| payment_context_id | string | yes | From the pch_provision response |
| prompt | string | – | Prompt for your first inference request |
| tx_hash | string | yes | Your USDC transfer transaction hash on Base |
No output schema declared.
No examples provided.
pch_provision ~64
Get USDC payment instructions to obtain a PCH API key. Returns the treasury wallet, payment_context_id, and step-by-step instructions. No authentication required.
| Name | Type | Req | Description |
|---|---|---|---|
| deposit_usdc | number | – | Amount to deposit in USDC (minimum 5 for Developer tier) |
No output schema declared.
No examples provided.
pch_status ~22
Check PCH gateway health and service status. No authentication required.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
pch_verify_certification ~44
Verify a PCH-issued certification credential by cert_id. Returns validity, agent, tier. Public, no API key required.
| Name | Type | Req | Description |
|---|---|---|---|
| cert_id | string | yes | – |
No output schema declared.
No examples provided.
What is the PathCourse Health (PCH) MCP server?
PathCourse Health (PCH) is an MCP server listed in the public MCP registry as io.github.pathcourse-health/mcp-server. Cheaper LLM inference, USDC agent payments via x402, agent identity / reputation lookup. This page covers its npm package (@pathcourse/mcp-server).
Is the PathCourse Health (PCH) MCP server safe to use?
PathCourse Health (PCH) scores 80 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the PathCourse Health (PCH) MCP server expose?
PathCourse Health (PCH) exposes 14 tools: pch_inference, pch_models, pch_balance, pch_estimate, pch_status, and 9 more. Their descriptions and schemas cost roughly 783 tokens of context every time the server is loaded.
Is the PathCourse Health (PCH) MCP server still maintained?
PathCourse Health (PCH) is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the PathCourse Health (PCH) MCP server under?
PathCourse Health (PCH) declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.