io.github.theoddden/stamp
REMOTE · STAMP-MCP.TERRADEV.CLOUD · 2 COMPONENTS · SCANNED SEP 21
Concierge MCP for agentic workflows: verified time + drift, uuid, diff, calc, attest, verify.
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 Security57
- 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 6 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
- 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 Usability79
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 454 tokens (~75/item across 6 items; 6 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability check failed: schema churn in the 14 days we've observed: 1 tool removals, 0 breaking changes, 0 auth/transport breaks, 5 additions. See how to fix → Fail
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 Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 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 io.github.theoddden/stamp MCP server?
io.github.theoddden/stamp is a hosted endpoint at https://stamp-mcp.terradev.cloud/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 · stamp-mcp.terradev.cloud
claude mcp add --transport http theoddden-stamp 'https://stamp-mcp.terradev.cloud/mcp'
{
"mcpServers": {
"theoddden-stamp": {
"url": "https://stamp-mcp.terradev.cloud/mcp"
}
}
} {
"servers": {
"theoddden-stamp": {
"type": "http",
"url": "https://stamp-mcp.terradev.cloud/mcp"
}
}
} [mcp_servers.theoddden-stamp] url = "https://stamp-mcp.terradev.cloud/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"theoddden-stamp": {
"type": "remote",
"url": "https://stamp-mcp.terradev.cloud/mcp",
"enabled": true
}
}
} openclaw mcp add theoddden-stamp --url 'https://stamp-mcp.terradev.cloud/mcp' --transport streamable-http
mcp_servers:
theoddden-stamp:
url: "https://stamp-mcp.terradev.cloud/mcp" {
"McpServers": {
"theoddden-stamp": {
"Transport": "http",
"Url": "https://stamp-mcp.terradev.cloud/mcp"
}
}
} assistant mcp add theoddden-stamp -t streamable-http -u 'https://stamp-mcp.terradev.cloud/mcp'
{
"mcpServers": {
"theoddden-stamp": {
"type": "http",
"url": "https://stamp-mcp.terradev.cloud/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.
- 12 Sept 26 −1
- Stability: 0.07 → fail ▼ security
- Tool “get_drift” was removed ▼ security
- Tool “get_time” rewrote its description, which is the text the model reads security
- Server version: 0.5.3 → 0.6.1 functional
- 9 Sept 26 +1
- Server version: 0.5.1 → 0.5.3 functional
- Server version: 0.5.0 → 0.5.1 functional
- 8 Sept 26 0
- Schema quality: 145 → 491 ▼ functional
- Stability: unverified → 0.03 ▲ functional
- Server version: 0.3.1 → 0.5.0 functional
- New tool “generate_uuid” functional
- New tool “verify” functional
- New tool “attest” functional
- New tool “calculate” functional
- New tool “diff” functional
- 7 Sept 26 65
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 21 Sept 2026 · Probed https://stamp-mcp.terradev.cloud/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=stamp-mcp.terradev.cloud | CN=YE1,O=Let's Encrypt,C=US | 6 Sept 2026 | 5 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 602a1ca9e00e0196dcd90b30bf043fa62a8 |
| SANs: stamp-mcp.terradev.cloud | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of stamp-mcp.terradev.cloud. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| cloud. | present | 7041 | 13 | Verified |
| terradev.cloud. | 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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://stamp-mcp.terradev.cloud/mcp | Verified | 200 | |
| http (plaintext) | http://stamp-mcp.terradev.cloud/mcp | HTTPS enforced | 308 | https://stamp-mcp.terradev.cloud/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 →
attest ~88
Wrap any payload in a tamper-evident record: a UUID, a timestamp (NTP-verified when reachable, local clock otherwise -- the record says which), and a sha256 over the canonical record. One call, the record is complete and tamper-evident.
| Name | Type | Req | Description |
|---|---|---|---|
| payload | – | yes | Any JSON value to attest |
| server | string | – | NTP server for the verified timestamp |
No output schema declared.
No examples provided.
calculate ~93
Evaluate a math expression safely: + - * / // % **, parentheses, functions (abs round min max sqrt floor ceil exp log log2 log10 pow sin cos tan), constants pi e tau inf. Parsed to an AST and only whitelisted nodes are computed -- no eval(), no names, no arbitrary code.
| Name | Type | Req | Description |
|---|---|---|---|
| expression | string | yes | e.g. "(1500 * 0.23) + 47" |
No output schema declared.
No examples provided.
diff ~64
Unified diff between two texts, with added/removed line counts. For reviewing edits, comparing outputs, or validating transformations.
| Name | Type | Req | Description |
|---|---|---|---|
| context | integer | – | Lines of context around each change |
| text_a | string | yes | Original text |
| text_b | string | yes | Revised text |
No output schema declared.
No examples provided.
generate_uuid ~43
Generate one or more random UUIDv4 identifiers -- for records, sessions, and IDs created in agent pipelines.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | How many UUIDs to generate |
No output schema declared.
No examples provided.
get_time ~108
Query an NTP server for current UTC time and this clock's offset. Appends the sample to the drift log and returns the trend inline: current offset, drift rate (ms/day), and whether the clock is stable, drifting, or accelerating.
| Name | Type | Req | Description |
|---|---|---|---|
| server | string | – | NTP server to query |
| timezone | string | – | IANA timezone for a 'local' field, e.g. America/New_York. Optional -- the HTTP transport also takes ?tz= in the URL. |
No output schema declared.
No examples provided.
verify ~58
Check a record produced by attest: recompute the sha256 over the record and compare. Pass/fail -- did this payload produce this hash at this timestamp. Any modified field breaks it.
| Name | Type | Req | Description |
|---|---|---|---|
| attested | object | yes | The record returned by attest |
No output schema declared.
No examples provided.
What is the io.github.theoddden/stamp MCP server?
io.github.theoddden/stamp is an MCP server listed in the public MCP registry as io.github.theoddden/stamp. Concierge MCP for agentic workflows: verified time + drift, uuid, diff, calc, attest, verify. This page covers its hosted endpoint (https://stamp-mcp.terradev.cloud/mcp).
Is the io.github.theoddden/stamp MCP server safe to use?
io.github.theoddden/stamp scores 65 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 io.github.theoddden/stamp MCP server expose?
io.github.theoddden/stamp exposes 6 tools: get_time, generate_uuid, diff, calculate, attest, verify. Their descriptions and schemas cost roughly 454 tokens of context every time the server is loaded.
Does the io.github.theoddden/stamp MCP server require authentication?
No. We connected to io.github.theoddden/stamp without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the io.github.theoddden/stamp MCP server still maintained?
io.github.theoddden/stamp is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.