ZeroStart Paid Service Tools
REMOTE · ZEROSTART-AGENT.JACK-LABS.WORKERS.DEV · SCANNED SEP 25
Bounded data, document, web-quality, and operations services purchased with USDC through x402.
Available components
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. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 404, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability73
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 1058 tokens (~46/item across 23 items; 23 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 23 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 24 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
How do I install the ZeroStart Paid Service Tools MCP server?
ZeroStart Paid Service Tools is a hosted endpoint at https://zerostart-agent.jack-labs.workers.dev/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · zerostart-agent.jack-labs.workers.dev
claude mcp add --transport http oppenheimervonbraun-zerostart-agent 'https://zerostart-agent.jack-labs.workers.dev/mcp'
{
"mcpServers": {
"oppenheimervonbraun-zerostart-agent": {
"url": "https://zerostart-agent.jack-labs.workers.dev/mcp"
}
}
} {
"servers": {
"oppenheimervonbraun-zerostart-agent": {
"type": "http",
"url": "https://zerostart-agent.jack-labs.workers.dev/mcp"
}
}
} [mcp_servers.oppenheimervonbraun-zerostart-agent] url = "https://zerostart-agent.jack-labs.workers.dev/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"oppenheimervonbraun-zerostart-agent": {
"type": "remote",
"url": "https://zerostart-agent.jack-labs.workers.dev/mcp",
"enabled": true
}
}
} openclaw mcp add oppenheimervonbraun-zerostart-agent --url 'https://zerostart-agent.jack-labs.workers.dev/mcp' --transport streamable-http
mcp_servers:
oppenheimervonbraun-zerostart-agent:
url: "https://zerostart-agent.jack-labs.workers.dev/mcp" {
"McpServers": {
"oppenheimervonbraun-zerostart-agent": {
"Transport": "http",
"Url": "https://zerostart-agent.jack-labs.workers.dev/mcp"
}
}
} assistant mcp add oppenheimervonbraun-zerostart-agent -t streamable-http -u 'https://zerostart-agent.jack-labs.workers.dev/mcp'
{
"mcpServers": {
"oppenheimervonbraun-zerostart-agent": {
"type": "http",
"url": "https://zerostart-agent.jack-labs.workers.dev/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 16 Sept 26 0
- Tool “brief-audit” rewrote its description, which is the text the model reads security
- Server version: 0.12.0 → 0.12.1 functional
- 7 Sept 26 0
- Stability: 0.97 → pass security
- 6 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 4 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 2 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.
- 31 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.
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 25 Sept 2026 · Probed https://zerostart-agent.jack-labs.workers.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=jack-labs.workers.dev | CN=WE1,O=Google Trust Services,C=US | 30 Jul 2026 | 28 Oct 2026 | ECDSA 256 | ECDSA-SHA256 | b1509a152c4cd83c130a5226cdd793a3 |
| SANs: jack-labs.workers.dev, *.jack-labs.workers.dev | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of zerostart-agent.jack-labs.workers.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| workers.dev. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| content-security-policy | default-src 'self'; script-src 'self' https://unpkg.com; style-src 'self' 'unsafe-inline'; connect-src 'self' https:; img-src 'self' data:; frame-src https:; base-uri 'none'; form-action 'self' |
| x-content-type-options | nosniff |
| referrer-policy | no-referrer |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://zerostart-agent.jack-labs.workers.dev/mcp | Verified | 200 | |
| http (plaintext) | http://zerostart-agent.jack-labs.workers.dev/mcp | Inconclusive | 404 |
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 →
accessibility-precheck Web Accessibility Precheck ~40
Run a bounded static precheck of supplied HTML for common accessibility problems and return prioritized remediation guidance. Price: $35.00 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
agent-endpoint-readiness Agent Endpoint Readiness ~52
Check supplied OpenAPI, MCP, A2A, or x402 metadata for discoverability, input clarity, payment hints, and bounded outputs. Price: $2.50 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
brief-audit Brief Audit ~46
Audit short landing-page copy for clarity, outcome, call-to-action, and readable length. Price: $10.00 USDC via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | – |
No output schema declared.
No examples provided.
content-diff Content Change Digest ~36
Compare two supplied text snapshots and return a bounded, machine-readable change digest. Price: $0.25 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
csv-profile CSV Data Profile ~39
Profile a bounded CSV sample for missing cells, duplicate rows, inconsistent widths, and column coverage. Price: $1.50 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
custom-checklist Custom Checklist ~40
Generate a structured four-stage checklist for a supplied project topic. Price: $0.25 USDC via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| topic | string | yes | – |
No output schema declared.
No examples provided.
data-cleanup-plan Data Cleanup Plan ~44
Inspect supplied CSV or JSON, identify structural and quality problems, and produce a sequenced cleanup and validation plan. Price: $20.00 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
document-transformation Document Transformation ~40
Transform supplied notes into a structured executive brief, standard operating procedure, FAQ, or action memo. Price: $25.00 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
growth-operations-bundle Growth + Operations Review Bundle ~43
Combine conversion-copy, accessibility, and operational-readiness reviews for supplied business materials in one bounded package. Price: $99.00 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
json-quality JSON Quality Report ~40
Validate JSON and report its size, shape, nesting, duplicate array values, and maintainability warnings. Price: $1.00 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
operations-package Customized Operations Package ~44
Convert a supplied business process into a practical SOP, responsibility map, checklist, controls, handoff, and KPI package. Price: $75.00 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
proofroute-select ProofRoute Provider Selection ~82
Rank up to 25 caller-supplied providers against explicit price, reliability, latency, evidence, capability, and escrow constraints without external browsing or model inference. Price: $0.01 USDC via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| capability | string | – | – |
| constraints | object | – | – |
| providers | array | yes | – |
| requestId | string | – | – |
No output schema declared.
No examples provided.
proofroute-verify ProofRoute Result Verification ~63
Check supplied JSON against an explicit acceptance contract and return a deterministic result receipt without external browsing or model inference. Price: $0.05 USDC via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| contract | object | yes | – |
| decisionFingerprint | string | – | – |
| result | – | yes | – |
No output schema declared.
No examples provided.
release-readiness Release Readiness Review ~35
Turn supplied release notes and checks into a risk-ranked launch readiness report. Price: $2.50 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
schema-repair JSON Schema Repair ~41
Normalize a supplied JSON Schema, identify contradictions, and return a repaired draft without executing untrusted code. Price: $0.50 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
site-copy-review Conversion Copy Review ~49
Review supplied website copy for audience clarity, value, trust, objections, structure, and calls to action, then return a prioritized revision blueprint. Price: $15.00 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
source-research-brief Source-Bounded Research Brief ~51
Turn supplied research notes and source excerpts into themes, supported claims, evidence gaps, questions, and an executive brief without inventing external research. Price: $50.00 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
store-client-kickoff Client Kickoff Sheet ~43
A structured worksheet for goals, inputs, ownership, and deadlines. Price: $3.00 USDC via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| topic | string | yes | – |
No output schema declared.
No examples provided.
store-decision-log Meeting Decision Log ~42
A compact system for recording decisions, owners, and due dates. Price: $2.00 USDC via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| topic | string | yes | – |
No output schema declared.
No examples provided.
store-home-inventory Home Inventory Starter ~38
A neutral room-by-room household inventory organizer. Price: $2.00 USDC via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| topic | string | yes | – |
No output schema declared.
No examples provided.
store-operations-bundle Operations Starter Bundle ~43
All four original ZeroStart worksheets delivered as one licensed Markdown bundle. Price: $7.00 USDC via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| topic | string | yes | – |
No output schema declared.
No examples provided.
store-weekly-reset 20-Minute Weekly Reset ~37
A reusable four-part weekly planning worksheet. Price: $2.00 USDC via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| topic | string | yes | – |
No output schema declared.
No examples provided.
structured-data-transform Structured Data Transformer ~42
Apply an explicit, bounded field map to supplied JSON records and return transformed data plus a reversible change report. Price: $1.00 USDC via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
What is the ZeroStart Paid Service Tools MCP server?
ZeroStart Paid Service Tools is an MCP server listed in the public MCP registry as io.github.oppenheimervonbraun/zerostart-agent. Bounded data, document, web-quality, and operations services purchased with USDC through x402. This page covers its hosted endpoint (https://zerostart-agent.jack-labs.workers.dev/mcp).
Is the ZeroStart Paid Service Tools MCP server safe to use?
ZeroStart Paid Service Tools scores 76 out of 100 on VerifyMCP. 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 ZeroStart Paid Service Tools MCP server expose?
ZeroStart Paid Service Tools exposes 23 tools: brief-audit, custom-checklist, json-quality, csv-profile, release-readiness, and 18 more. Their descriptions and schemas cost roughly 1,030 tokens of context every time the server is loaded.
Does the ZeroStart Paid Service Tools MCP server require authentication?
No. We connected to ZeroStart Paid Service Tools without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the ZeroStart Paid Service Tools MCP server still maintained?
ZeroStart Paid Service Tools is still listed as active in the MCP registry. We last reached this channel on 25 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.