ProofSlip
NPM · @PROOFSLIP/MCP-SERVER · SCANNED AUG 3
Receipt-based verification for AI agent workflows — create, verify, and poll ephemeral proof objects
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 →
Supply Chain Security87
- No malware found by supply-chain analysis.Pass
- Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.Partial
- No install/post-install scripts declared.Pass
- Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree. 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 119 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 (excellent).Pass
- Tool/resource definitions use about 477 tokens (~119/item across 4 items; 4 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
npm · @proofslip/mcp-server
claude mcp add ai-proofslip-mcp-server -- npx -y @proofslip/mcp-server
codex mcp add ai-proofslip-mcp-server -- npx -y @proofslip/mcp-server
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"ai-proofslip-mcp-server": {
"type": "local",
"command": [
"npx",
"-y",
"@proofslip/mcp-server"
],
"enabled": true
}
}
} openclaw mcp add ai-proofslip-mcp-server --command npx --arg -y --arg @proofslip/mcp-server
mcp_servers:
ai-proofslip-mcp-server:
command: "npx"
args: ["-y", "@proofslip/mcp-server"] {
"mcpServers": {
"ai-proofslip-mcp-server": {
"command": "npx",
"args": [
"-y",
"@proofslip/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.
- 3 Aug 26 +4
- Stability: unverified → 0.27 ▲ functional
- 2 Aug 26 +45
- Provenance: unverified → fail ▼ security
- Install scripts: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Malware scan: unverified → pass ▲ security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- Tool coverage: 100 → unverified ▼ functional
- License: unverified → pass ▲ functional
- Dependency health: unverified → partial ▲ functional
- Maintenance: unverified → pass ▲ functional
- MCP protocol: unverified → pass ▲ functional
- Schema quality: unverified → excellent ▲ functional
- First check of Schema quality: unverified functional
- Licence: MIT functional
- 31 Jul 26 −25
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Jul 26 46
First indexed and scored.
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 3 Aug 2026 · Analysed npm/@proofslip/[email protected]
Provenance none
Ecosystem: npm · Outcome: none
Dependencies 95 packages
95 packages in the resolved dependency tree · 95 deprecated · 29 stale.
The dependency tree was only partially resolved, so these counts may be incomplete.
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.
check_receipt_status ~95
Lightweight status poll for a ProofSlip receipt. Returns only status, is_terminal, and next_poll_after_seconds — no payload or summary. Use this instead of verify_receipt when you only need to know if a receipt state has changed. If is_terminal is false, wait next_poll_after_seconds before checking again. No API key required.
| Name | Type | Req | Description |
|---|---|---|---|
| receipt_id | string | yes | The receipt ID to check (starts with rct_) |
No output schema declared.
No examples provided.
create_receipt ~223
Create a ProofSlip receipt to record that something happened. Use 'action' for completed events, 'approval' for decisions awaiting review, 'handshake' for agent-to-agent coordination, 'resume' for continuation bookmarks, 'failure' for structured error records. Returns a receipt_id and verify_url. Receipts expire after 24 hours by default.
| Name | Type | Req | Description |
|---|---|---|---|
| audience | string | — | Set to "human" to enrich the verification page with social cards |
| expires_in | number | — | TTL in seconds (60-86400, default 86400 = 24 hours) |
| idempotency_key | string | — | Prevents duplicate receipts if you retry the same request |
| payload | object | — | Optional structured JSON data (max 4KB) |
| ref | object | — | Optional workflow reference IDs for tracing |
| status | string | yes | Freeform status string (e.g. "success", "pending", "failed") |
| summary | string | yes | Human-readable summary of what happened (max 280 chars) |
| type | string | yes | Receipt type |
No output schema declared.
No examples provided.
signup ~74
Get a free ProofSlip API key. Returns the key directly — save it immediately, it cannot be retrieved later. Only needed once. After signup, configure the key as PROOFSLIP_API_KEY environment variable to use create_receipt. Free tier: 500 receipts per month.
| Name | Type | Req | Description |
|---|---|---|---|
| string | yes | Your email address |
No output schema declared.
No examples provided.
verify_receipt ~85
Verify a ProofSlip receipt and retrieve its full data (type, status, summary, payload, ref, expiry). Use this to check what happened before deciding what to do next. Returns the complete receipt if valid, or a not_found error if expired or missing. No API key required.
| Name | Type | Req | Description |
|---|---|---|---|
| receipt_id | string | yes | The receipt ID to verify (starts with rct_) |
No output schema declared.
No examples provided.