io.github.brandonbgreen/reversecentaur-mcp
NPM · REVERSECENTAUR-MCP
Hire humans for tasks AI can't do. Fair trade pay floors, prepaid escrow, ethical receipts.
Available components
Last scanned (1 hour ago)
Scores higher than 65% of npm servers
Category Workflow Automation
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 Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 93 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 203 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability88
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 508 tokens (~63/item across 8 items; 6 tools + 2 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 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
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; "send_task_message" implies "send" 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 7 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
Checks we ran (16)
- Malware scan
- Known CVEs
- Install scripts
- Dependency health
- Source repository
- Provenance
- License
- Maintenance
- Security disclosure
- Schema quality
- Stability
- Tool coverage
- Injection markers
- Destructive annotations
- Judged manipulation
- MCP protocol
Does not apply to this package (2)
- Endpoint SecurityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
- Transport & ReachabilityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
The score does not measure everything. What the score does not measure →
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.
- 6 Nov 26 +1
- Stability: 0.97 → pass security
- 4 Nov 26 −1
- Stability: pass → 0.93 functional
- 29 Oct 26 +1
- Stability: 0.97 → pass security
- 28 Oct 26 −1
- Stability: pass → 0.97 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 22 Oct 26 +1
- Stability: 0.97 → pass security
- 21 Oct 26 −1
- Stability: pass → 0.97 functional
- 17 Oct 26 +3
- Stability: 0.80 → 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 6 Nov 2026 · Analysed npm/reversecentaur-mcp@0.1.1
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 →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 30 |
| 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 →
cancel_task Cancel Task ~50
Cancel a previously posted task. Cancellation fees may apply if a worker has already been assigned.
| Name | Type | Req | Description |
|---|---|---|---|
| reason | string | – | Optional reason for cancellation |
| task_id | string | yes | The task ID to cancel |
No output schema declared.
No examples provided.
check_task Check Task ~48
Check the status of a previously posted task. Returns the current status and, if completed, the human worker's deliverable.
| Name | Type | Req | Description |
|---|---|---|---|
| task_id | string | yes | The task ID returned from post_task |
No output schema declared.
No examples provided.
list_capabilities List Capabilities ~28
List available task categories, fair trade pay minimums, worker availability, and current platform status.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_task_messages List Task Messages ~71
List all messages on one of your tasks, oldest first. Includes worker questions (pre-accept or post-accept), your own replies, and any system notices. Calling this marks worker-sent messages as read on the agent side.
| Name | Type | Req | Description |
|---|---|---|---|
| task_id | string | yes | The task ID returned from post_task |
No output schema declared.
No examples provided.
post_task Post Task ~184
Post a task for a human worker to complete via the Reverse Centaur Fair Trade marketplace. Tasks must meet category-specific fair trade pay minimums.
| Name | Type | Req | Description |
|---|---|---|---|
| budget_usd | number | yes | Budget in USD (must meet fair trade minimum for category) |
| callback_url | string | – | Webhook URL to receive task completion notification |
| category | string | yes | Task category (determines fair trade minimum) |
| deadline_minutes | integer | – | Deadline in minutes from now (default: 1440 = 24h) |
| deliverable_format | string | – | Expected format of the deliverable |
| description | string | yes | Detailed description of what the human should do |
| payment_method | string | – | Payment rail: "stripe" (default) or "usdc_base" (direct USDC on Base L2) |
| title | string | yes | Short title for the task |
No output schema declared.
No examples provided.
send_task_message Send Task Message ~92
Send a message to the human worker on one of your tasks. Use this to answer a clarifying question, add context, or follow up. Messages are scoped to a single task and are visible to the assigned worker (or to workers considering a posted task).
| Name | Type | Req | Description |
|---|---|---|---|
| body | string | yes | Message body, 1-2000 characters |
| task_id | string | yes | The task ID returned from post_task |
No output schema declared.
No examples provided.
How do I install the io.github.brandonbgreen/reversecentaur-mcp server?
io.github.brandonbgreen/reversecentaur-mcp runs locally as an npm package, launched with npx -y reversecentaur-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · reversecentaur-mcp
claude mcp add brandonbgreen-reversecentaur-mcp -- npx -y reversecentaur-mcp
What is the io.github.brandonbgreen/reversecentaur-mcp server?
io.github.brandonbgreen/reversecentaur-mcp is listed in the public MCP registry as io.github.brandonbgreen/reversecentaur-mcp. Hire humans for tasks AI can't do. Fair trade pay floors, prepaid escrow, ethical receipts. This page covers its npm package (reversecentaur-mcp).
Is the io.github.brandonbgreen/reversecentaur-mcp server safe to use?
io.github.brandonbgreen/reversecentaur-mcp scores 80 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 6 November 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 io.github.brandonbgreen/reversecentaur-mcp server expose?
io.github.brandonbgreen/reversecentaur-mcp exposes 6 tools: post_task, check_task, list_capabilities, cancel_task, send_task_message, list_task_messages. Their descriptions and schemas cost roughly 473 tokens of context every time the server is loaded.
Is the io.github.brandonbgreen/reversecentaur-mcp server still maintained?
io.github.brandonbgreen/reversecentaur-mcp is still listed as active in the MCP registry. We last reached this channel on 6 November 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 io.github.brandonbgreen/reversecentaur-mcp server under?
io.github.brandonbgreen/reversecentaur-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.
What did VerifyMCP test on the io.github.brandonbgreen/reversecentaur-mcp server?
VerifyMCP ran 16 checks on io.github.brandonbgreen/reversecentaur-mcp, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.