Signal Oracle
REMOTE · ORACLES-PRODUCTION.UP.RAILWAY.APP · SCANNED SEP 20
Pay-per-call change-intelligence feeds for AI agents over x402 (deps, security, regs, tariffs)
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 7 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 Usability75
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1010 tokens (~144/item across 7 items; 7 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- 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
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 8 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 Signal Oracle MCP server?
Signal Oracle is a hosted endpoint at https://oracles-production.up.railway.app/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 · oracles-production.up.railway.app
claude mcp add --transport http neruoticfarrow-signal-oracle 'https://oracles-production.up.railway.app/mcp'
{
"mcpServers": {
"neruoticfarrow-signal-oracle": {
"url": "https://oracles-production.up.railway.app/mcp"
}
}
} {
"servers": {
"neruoticfarrow-signal-oracle": {
"type": "http",
"url": "https://oracles-production.up.railway.app/mcp"
}
}
} [mcp_servers.neruoticfarrow-signal-oracle] url = "https://oracles-production.up.railway.app/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"neruoticfarrow-signal-oracle": {
"type": "remote",
"url": "https://oracles-production.up.railway.app/mcp",
"enabled": true
}
}
} openclaw mcp add neruoticfarrow-signal-oracle --url 'https://oracles-production.up.railway.app/mcp' --transport streamable-http
mcp_servers:
neruoticfarrow-signal-oracle:
url: "https://oracles-production.up.railway.app/mcp" {
"McpServers": {
"neruoticfarrow-signal-oracle": {
"Transport": "http",
"Url": "https://oracles-production.up.railway.app/mcp"
}
}
} assistant mcp add neruoticfarrow-signal-oracle -t streamable-http -u 'https://oracles-production.up.railway.app/mcp'
{
"mcpServers": {
"neruoticfarrow-signal-oracle": {
"type": "http",
"url": "https://oracles-production.up.railway.app/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.
- 26 Aug 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
- 25 Aug 26 +1
- Stability: 0.97 → pass security
- 23 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Aug 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
- 31 Jul 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
- 30 Jul 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
- 27 Jul 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
- 26 Jul 26 0
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 20 Sept 2026 · Probed https://oracles-production.up.railway.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.up.railway.app | CN=YE1,O=Let's Encrypt,C=US | 29 Jul 2026 | 27 Oct 2026 | ECDSA 256 | ECDSA-SHA384 | 6da79bb561da3efeb0e751ca21abd3999fe |
| SANs: *.up.railway.app, up.railway.app | ||||||
| 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 oracles-production.up.railway.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| railway.app. | 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://oracles-production.up.railway.app/mcp | Verified | 200 | |
| http (plaintext) | http://oracles-production.up.railway.app/mcp | HTTPS enforced | 301 | https://oracles-production.up.railway.app/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 →
depwatch_preview DepWatch — dependency change preview ~144
Free preview of breaking changes / new releases for a software dependency. Pass an npm/PyPI `package` (resolved and fetched live if not already tracked) or a GitHub `repo` (owner/repo). Returns up to 5 recent changes plus the package's current version. Full history, significance filtering, and the LLM brief are paid via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| package | string | – | npm or PyPI package name, e.g. 'lodash' or 'react' |
| repo | string | – | GitHub owner/repo, e.g. 'facebook/react' |
| since | string | – | ISO-8601 instant; only changes detected after this |
| Name | Type | Req | Description |
|---|---|---|---|
| changes | array | – | – |
| entity | object | – | – |
| error | string | – | – |
| hint | string | – | – |
| previewCount | number | – | – |
| question | string | – | – |
| source | string | – | – |
| tier | string | – | – |
| upgrade | object | – | – |
No examples provided.
list_feeds List all feeds ~143
List every change-intelligence feed: source slug, label, the question each answers, per-call prices, paid x402 endpoints, and free discovery URLs. There are ~120 feeds, so pass `category` to filter (e.g. 'security', 'regulatory', 'packages', 'premium', 'infrastructure', 'compliance') and/or `compact: true` to keep the payload small. Use the returned `source` slug with preview_feed.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Filter to one category (see the `categories` list in the response) |
| compact | boolean | – | Return only source/label/question/price to keep the payload small |
| Name | Type | Req | Description |
|---|---|---|---|
| categories | array | – | – |
| discovery | array | – | – |
| feedCount | number | – | – |
| feeds | array | – | – |
| premium | object | – | – |
| service | string | – | – |
| totalFeeds | number | – | – |
No examples provided.
packagehealth_preview PackageHealth — free preview ~128
FREE preview of a dependency's health: current version, deprecation flag, OpenSSF Scorecard, SPDX license, and known-advisory count (via deps.dev). The full ship/avoid verdict — per-advisory CISA-KEV active-exploit cross-reference, license-fit judgement, and LLM recommendation — is the paid /v1/packagehealth/check.
| Name | Type | Req | Description |
|---|---|---|---|
| ecosystem | string | – | npm | pypi | go | maven | cargo | nuget (default npm) |
| package | string | yes | Package name, e.g. 'lodash' or 'django' |
| Name | Type | Req | Description |
|---|---|---|---|
| deprecated | boolean | – | – |
| ecosystem | string | – | – |
| error | string | – | – |
| hint | string | – | – |
| knownAdvisories | number | – | – |
| license | array | – | – |
| package | string | – | – |
| scorecard | – | – | – |
| stars | – | – | – |
| tier | string | – | – |
| upgrade | object | – | – |
| version | string | – | – |
No examples provided.
preview_feed Preview any feed ~233
Free preview (up to 5 recent changes) for any feed. Pass the feed's `source` slug (from list_feeds). Optionally: `since` (ISO-8601) to window; `scope` to filter to an entity-id prefix on feeds that support it (e.g. an HTS code); or `package`/`repo`/`ecosystem` on feeds that resolve arbitrary entities live (e.g. dependency feeds). The full feed, status, and LLM brief are paid via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| ecosystem | string | – | Registry hint, e.g. 'npm' or 'pypi' |
| package | string | – | Package name for dependency feeds (resolved live) |
| repo | string | – | GitHub owner/repo for dependency feeds |
| scope | string | – | Entity-id prefix filter for feeds that declare a scope param |
| since | string | – | ISO-8601 instant; only changes detected after this |
| source | string | yes | Feed source slug, e.g. 'depwatch' or 'cve' (see list_feeds) |
| Name | Type | Req | Description |
|---|---|---|---|
| changes | array | – | – |
| entity | object | – | – |
| error | string | – | – |
| exampleRequest | string | – | – |
| freeTeaser | – | – | – |
| hint | string | – | – |
| note | string | – | – |
| params | array | – | – |
| previewCount | number | – | – |
| price | string | – | – |
| question | string | – | – |
| source | string | – | – |
| tier | string | – | – |
| upgrade | object | – | – |
| url | string | – | – |
No examples provided.
regwatch_preview RegWatch — regulatory change preview ~65
Free preview of recent Federal Register regulatory actions in the tracked industry vertical. Returns up to 5 recent items. The full windowed feed and the LLM brief are paid via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| since | string | – | ISO-8601 instant; only changes detected after this |
| Name | Type | Req | Description |
|---|---|---|---|
| changes | array | – | – |
| entity | object | – | – |
| error | string | – | – |
| hint | string | – | – |
| previewCount | number | – | – |
| question | string | – | – |
| source | string | – | – |
| tier | string | – | – |
| upgrade | object | – | – |
No examples provided.
tariffwatch_preview TariffWatch — tariff/HTS change preview ~118
Free preview of recent US import-tariff changes. Optionally scope to an HTS code prefix (e.g. '6109' or '8471.30'). Returns up to 5 recent changes plus current duty-rate state for a scoped code. Full feed and the LLM brief are paid via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| hts | string | – | HTS code prefix, e.g. '6109' or '8471.30' |
| since | string | – | ISO-8601 instant; only changes detected after this |
| Name | Type | Req | Description |
|---|---|---|---|
| changes | array | – | – |
| entity | object | – | – |
| error | string | – | – |
| hint | string | – | – |
| previewCount | number | – | – |
| question | string | – | – |
| source | string | – | – |
| tier | string | – | – |
| upgrade | object | – | – |
No examples provided.
vendorrisk_preview VendorRisk — free preview ~85
FREE preview of counterparty risk: tracked OFAC designations + product recalls we monitor for the name. The authoritative sanctions/denied-party (CSL) + federal debarment (SAM) screening and the CLEAR→PROHIBITED risk verdict are the paid /v1/vendorrisk/check.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Company or individual name to screen |
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | – | – |
| note | string | – | – |
| tier | string | – | – |
| trackedFlagCount | number | – | – |
| trackedFlags | array | – | – |
| upgrade | object | – | – |
No examples provided.
What is the Signal Oracle MCP server?
Signal Oracle is an MCP server listed in the public MCP registry as io.github.NeruoticFarrow/signal-oracle. Pay-per-call change-intelligence feeds for AI agents over x402 (deps, security, regs, tariffs). This page covers its hosted endpoint (https://oracles-production.up.railway.app/mcp).
Is the Signal Oracle MCP server safe to use?
Signal Oracle scores 78 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 Signal Oracle MCP server expose?
Signal Oracle exposes 7 tools: list_feeds, preview_feed, packagehealth_preview, vendorrisk_preview, depwatch_preview, and 2 more. Their descriptions and schemas cost roughly 916 tokens of context every time the server is loaded.
Does the Signal Oracle MCP server require authentication?
No. We connected to Signal Oracle without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Signal Oracle MCP server still maintained?
Signal Oracle 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.