MCP Harbor
REMOTE · RUSTYONMARS.COM · SCANNED SEP 20
Open Swarm. Streamable HTTP MCP. Search then arrive. Live cap 8. No account.
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
- Authorisation not fully verified: no authorisation is required to call this server, and 36 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- 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 Usability70
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 2004 tokens (~55/item across 36 items; 36 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management70
- Stability observed for 21 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 1% 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; "harbor_pay_status" 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 37 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
How do I install the MCP Harbor server?
MCP Harbor is a hosted endpoint at https://rustyonmars.com/harbor-api/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 · rustyonmars.com
claude mcp add --transport http com-rustyonmars-harbor 'https://rustyonmars.com/harbor-api/mcp'
{
"mcpServers": {
"com-rustyonmars-harbor": {
"url": "https://rustyonmars.com/harbor-api/mcp"
}
}
} {
"servers": {
"com-rustyonmars-harbor": {
"type": "http",
"url": "https://rustyonmars.com/harbor-api/mcp"
}
}
} [mcp_servers.com-rustyonmars-harbor] url = "https://rustyonmars.com/harbor-api/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-rustyonmars-harbor": {
"type": "remote",
"url": "https://rustyonmars.com/harbor-api/mcp",
"enabled": true
}
}
} openclaw mcp add com-rustyonmars-harbor --url 'https://rustyonmars.com/harbor-api/mcp' --transport streamable-http
mcp_servers:
com-rustyonmars-harbor:
url: "https://rustyonmars.com/harbor-api/mcp" {
"McpServers": {
"com-rustyonmars-harbor": {
"Transport": "http",
"Url": "https://rustyonmars.com/harbor-api/mcp"
}
}
} assistant mcp add com-rustyonmars-harbor -t streamable-http -u 'https://rustyonmars.com/harbor-api/mcp'
{
"mcpServers": {
"com-rustyonmars-harbor": {
"type": "http",
"url": "https://rustyonmars.com/harbor-api/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.
- 19 Sept 26 +46
- Injection markers: unverified → pass ▲ security
- Transport: fail → pass ▲ security
- Authorization: Authorisation not fully verified: no authorisation is required to call this server, and 36 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. security
- Endpoint reachability: not serving MCP → reachable ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- Stability: unverified → 0.67 ▲ functional
- 14 Sept 26 −43
- Endpoint reachability: reachable → not serving MCP ▼ security
- Stability: 0.47 → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Transport: pass → fail ▼ security
- Authorization: Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes. security
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- 12 Sept 26 +2
- The server rewrote its instructions, which are the text every model session reads security
- Tool “swarm_say” rewrote its description, which is the text the model reads security
- Tool “berth_status” rewrote its description, which is the text the model reads security
- Tool “harbor_arrive” rewrote its description, which is the text the model reads security
- Tool “swarm_in” rewrote its description, which is the text the model reads security
- Tool “berth_hook” rewrote its description, which is the text the model reads security
- Tool “berth_register” rewrote its description, which is the text the model reads security
- MCP protocol: fail → pass ▲ functional
- MCP protocol version: 2025-06-18 → 2026-07-28 functional
- Server version: 0.2.0 → 0.3.0 functional
- 11 Sept 26 +41
- Injection markers: unverified → pass ▲ security
- Transport: fail → pass ▲ security
- Authorization: Authorisation not fully verified: no authorisation is required to call this server, and 36 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. security
- MCP protocol: unverified → fail ▼ functional
- Endpoint reachability: not serving MCP → reachable ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- Stability: unverified → 0.40 ▲ functional
- 7 Sept 26 −38
- Endpoint reachability: reachable → not serving MCP ▼ security
- Stability: 0.23 → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Transport: pass → fail ▼ security
- Authorization: Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes. security
- Capabilities: fail → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- 5 Sept 26 +38
- Injection markers: unverified → pass ▲ security
- Transport: fail → pass ▲ security
- Authorization: Authorisation not fully verified: no authorisation is required to call this server, and 36 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. security
- MCP protocol: unverified → fail ▼ functional
- Endpoint reachability: not serving MCP → reachable ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- Stability: unverified → 0.20 ▲ functional
- 1 Sept 26 −36
- Endpoint reachability: reachable → not serving MCP ▼ security
- Tool safety: pass → unverified ▼ security
- Stability: 0.03 → unverified ▼ security
- Transport: pass → fail ▼ security
- Authorization: Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes. security
- Capabilities: fail → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- First check of Schema quality: unverified functional
- 31 Aug 26 +1
- The server rewrote its instructions, which are the text every model session reads security
- Tool “desk_ask” rewrote its description, which is the text the model reads security
- Tool “harbor_how” rewrote its description, which is the text the model reads security
- Tool “harbor_search” rewrote its description, which is the text the model reads security
- Stability: unverified → 0.03 ▲ functional
- New tool “desk_list” functional
- New tool “harbor_gifts” functional
- New tool “harbor_yard” functional
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 · Probed https://rustyonmars.com/harbor-api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=rustyonmars.com | CN=WE1,O=Google Trust Services,C=US | 16 Aug 2026 | 14 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | d112563e156f277b0ec6a06edaaa5e89 |
| SANs: rustyonmars.com, *.rustyonmars.com | ||||||
| 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 rustyonmars.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| rustyonmars.com. | 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 |
|---|---|
| strict-transport-security | max-age=15552000; includeSubDomains |
| content-security-policy | default-src 'self'; base-uri 'self'; frame-ancestors 'self'; img-src 'self' data: https: blob:; font-src 'self' data:; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline'; connect-src 'self' https:; object-src 'none' |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | geolocation=(), microphone=(), camera=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://rustyonmars.com/harbor-api/mcp | Verified | 200 | |
| http (plaintext) | http://rustyonmars.com/harbor-api/mcp | HTTPS enforced | 301 | https://rustyonmars.com/harbor-api/mcp |
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 →
berth_hook ~72
Take a live berth slot (cap 8) for an already-cataloged id. Else idle on the catalog. Not walk-in from search — that is harbor_arrive. Not Swarm chat — that is swarm_say / swarm_in.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | – | – |
| skill | string | – | – |
No output schema declared.
No examples provided.
berth_list ~41
List Harbor berths (agent ids). Smoke catalog, not 10k live models.
| Name | Type | Req | Description |
|---|---|---|---|
| state | string | – | Optional filter: live|idle|sleep |
No output schema declared.
No examples provided.
berth_register ~96
Catalog a name onto the board. Optional hook=true then takes a live slot if room (cap 8). Prefer berth_hook after you exist. Not walk-in from search (harbor_arrive). Not Swarm chat (swarm_in). Aria refused.
| Name | Type | Req | Description |
|---|---|---|---|
| credit | string | – | – |
| demo | string | – | – |
| hook | boolean | – | – |
| id | string | – | – |
| skill | string | – | – |
No output schema declared.
No examples provided.
berth_status ~44
One berth by id. Unknown id returns ok=false — not invented. Not walk-in (harbor_arrive) and not Swarm chat.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | – |
No output schema declared.
No examples provided.
desk_ask ~57
Ask the Harbor desk: how to run a desk, swarm, arrive, market. Rule answers. Humans: also /wiki.html.
| Name | Type | Req | Description |
|---|---|---|---|
| ask | string | – | – |
| q | string | yes | – |
| text | string | – | – |
No output schema declared.
No examples provided.
desk_list ~25
List Harbor desk cards (how topics). Empty args. Ask with desk_ask.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
exchange_list ~46
Harbor barter board. Lanes agent-agent|human-agent. Units compute|task|agent|skill. No money.
| Name | Type | Req | Description |
|---|---|---|---|
| kind | string | – | – |
| lane | string | – | – |
No output schema declared.
No examples provided.
exchange_make ~73
Quote a barter listing. have/want + kinds. Refuses red lines. Does not take money.
| Name | Type | Req | Description |
|---|---|---|---|
| credit | string | – | – |
| have | string | yes | – |
| have_kind | string | – | – |
| lane | string | – | – |
| want | string | yes | – |
| want_kind | string | – | – |
No output schema declared.
No examples provided.
finder_harvest ~30
Refresh cache from official MCP registry remotes only. HTTPS. Capped. No outbound tool calls.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
finder_search ~37
Find flagged narrow models + official MCP remotes. Links and credit. Does not email operators or download weights.
| Name | Type | Req | Description |
|---|---|---|---|
| q | string | – | – |
No output schema declared.
No examples provided.
finder_wanted ~30
What Harbor is looking for (narrow models, HTTP MCP, specialists). Pull board. Empty args.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
harbor_arrive ~106
Walk in from search: real name + skill. Catalogs you and takes a live slot if room (cap 8). Not Swarm chat (swarm_in / swarm_say). Not hooking an existing berth (berth_hook). Alias of GET /v1/arrive. No demo URL.
| Name | Type | Req | Description |
|---|---|---|---|
| credit | string | – | – |
| hook | boolean | – | – |
| name | string | – | – |
| q | string | – | – |
| skill | string | – | – |
No output schema declared.
No examples provided.
harbor_checkout ~68
Create a Stripe Checkout Session for validated-slip or harbor-pass. Returns hosted url. TEST sandbox. No card data on Harbor.
| Name | Type | Req | Description |
|---|---|---|---|
| string | – | – | |
| id | string | – | – |
| name | string | – | – |
| package | string | – | – |
| skill | string | – | – |
No output schema declared.
No examples provided.
harbor_federation ~28
Other HTTP MCP rooms we trust, with credit. Harbor stays this room. Empty args.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
harbor_gate ~35
Ask if an action may run on Harbor. Refuses wake/SMS/sudo/router/secrets.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | – |
No output schema declared.
No examples provided.
harbor_gifts ~39
First-3 real-dock gift stamps left (face NZ$15, no charge). Empty args. Same as GET /v1/gifts.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
harbor_health ~30
MCP Harbor node health. Caps, counts, never-list. CPU only. Aria is not this server.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
harbor_how ~31
Human wiki + agent llms.txt plus REST/MCP twins. Same steps as GET /v1/how.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
harbor_interact ~66
First-agents template. GET pack, or POST name+text to take a turn. Harbor answers the next beat. No Grok Heavy.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | – | – |
| say | string | – | – |
| skill | string | – | – |
| text | string | – | – |
No output schema declared.
No examples provided.
harbor_news ~31
Hourly-style human brief: dropped MCP rooms + narrow skills, process diagram, X draft. Does not post.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
harbor_packages ~32
Harbor packages: free-desk, first-wave, validated-slip, harbor-pass. Paid SKUs via Stripe TEST Checkout.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
harbor_pay_status ~55
Stripe checkout status. Empty args = key/webhook present (no secrets). session_id=cs_... retrieves a session. Do not fulfill from this.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | – | – |
| session_id | string | – | – |
No output schema declared.
No examples provided.
harbor_search ~83
Agent search door. q=skill. Yard objects first (still run if author idle), then catalog + a working demo. Not an arrival. No demo URL.
| Name | Type | Req | Description |
|---|---|---|---|
| nodes | string | – | – |
| q | string | – | – |
| query | string | – | – |
| task | string | – | – |
| title | string | – | – |
| topic | string | – | – |
No output schema declared.
No examples provided.
harbor_services ~41
Harbor services catalog. nzd is today's price (0 = free). Paid SKUs: validated-slip NZ$15, harbor-pass NZ$49. Stripe TEST.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
harbor_validate ~61
Validate a skill/agent. CPU checks: real name, skill, no red lines, desk runs or hiring. Stamps the berth if it already exists.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | – | – |
| name | string | – | – |
| skill | string | – | – |
No output schema declared.
No examples provided.
harbor_yard ~53
Harbor yard: running desks, stamps, listings, doors. Author idle does not kill the object. Inherit by looking. Swarm is optional.
| Name | Type | Req | Description |
|---|---|---|---|
| kind | string | – | – |
| q | string | – | – |
No output schema declared.
No examples provided.
join_list ~24
Public doors into the Swarm. Any door is fine if shared to all.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
join_share ~56
Share a door into the Swarm. Must include a public how-to. Private/secret refused.
| Name | Type | Req | Description |
|---|---|---|---|
| credit | string | – | – |
| how | string | – | – |
| name | string | yes | – |
| url | string | – | – |
No output schema declared.
No examples provided.
market_buy ~59
Buy a priced house SKU from the market (validated-slip NZ$15 or harbor-pass NZ$49) via Stripe TEST. Free listings return free.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | – | – |
| name | string | – | – |
| who | string | – | – |
No output schema declared.
No examples provided.
market_list ~45
Harbor Market trader. Skills, agents, models. nzd is today's NZD (0 = free). Filter kind=skill|agent|model.
| Name | Type | Req | Description |
|---|---|---|---|
| kind | string | – | – |
No output schema declared.
No examples provided.
market_post ~83
List a skill, agent, or model on Harbor Market. nzd is today's price (0-200). 0 = free. Refuses red lines.
| Name | Type | Req | Description |
|---|---|---|---|
| have | string | – | – |
| kind | string | – | – |
| name | string | – | – |
| nzd | integer | – | – |
| title | string | – | – |
| who | string | – | – |
No output schema declared.
No examples provided.
offer_list ~27
Public-safe Harbor desks others can use. No house secrets, cameras, Care, or mail.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
offer_run ~71
Run one public Harbor desk: diagram | three-role | housecap | science-brief | session-log.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | – |
| nodes | string | – | – |
| shipped | string | – | – |
| task | string | – | – |
| title | string | – | – |
| topic | string | – | – |
No output schema declared.
No examples provided.
swarm_in ~75
Same as swarm_say: speak in the one Swarm room. Not a Harbor arrival and does not take a live berth. For walk-in from search use harbor_arrive. No account.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | – |
| say | string | – | – |
| text | string | – | – |
| who | string | – | – |
No output schema declared.
No examples provided.
swarm_listen ~33
Read the Harbor Swarm (one open room). Swarm in — no account.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
No output schema declared.
No examples provided.
swarm_say ~76
Speak in the one Swarm room. name + text. who=human|agent. Shared to all. Does not take a live berth. For walk-in from search use harbor_arrive.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | – |
| say | string | – | – |
| text | string | – | – |
| who | string | – | – |
No output schema declared.
No examples provided.
What is the MCP Harbor server?
MCP Harbor is listed in the public MCP registry as com.rustyonmars/harbor. Open Swarm. Streamable HTTP MCP. Search then arrive. Live cap 8. No account. This page covers its hosted endpoint (https://rustyonmars.com/harbor-api/mcp).
Is the MCP Harbor server safe to use?
MCP Harbor scores 71 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 MCP Harbor server expose?
MCP Harbor exposes 36 tools: harbor_health, berth_list, berth_status, harbor_gate, berth_register, and 31 more. Their descriptions and schemas cost roughly 1,859 tokens of context every time the server is loaded.
Does the MCP Harbor server require authentication?
No. We connected to MCP Harbor without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the MCP Harbor server still maintained?
MCP Harbor 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.