Signal Oracle

Measured conclusion: Alive, not deep-tested. L2 outcome: not_attempted.

Pay-per-call change-intelligence feeds for AI agents over x402 (deps, security, regs, tariffs)

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "Signal Oracle": {
      "url": "https://oracles-production.up.railway.app/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (7)

• list_feeds read-only

  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.

  Parameters:

  • compact — boolean — Return only source/label/question/price to keep the payload small
  • category — string — Filter to one category (see the `categories` list in the response)

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• preview_feed read-only

  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.

  Parameters:

  • source (required) — string — Feed source slug, e.g. 'depwatch' or 'cve' (see list_feeds)
  • 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
  • package — string — Package name for dependency feeds (resolved live)
  • ecosystem — string — Registry hint, e.g. 'npm' or 'pypi'

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• packagehealth_preview read-only

  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.

  Parameters:

  • package (required) — string — Package name, e.g. 'lodash' or 'django'
  • ecosystem — string — npm | pypi | go | maven | cargo | nuget (default npm)

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• vendorrisk_preview read-only

  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.

  Parameters:

  • name (required) — string — Company or individual name to screen

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• depwatch_preview read-only

  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.

  Parameters:

  • repo — string — GitHub owner/repo, e.g. 'facebook/react'
  • since — string — ISO-8601 instant; only changes detected after this
  • package — string — npm or PyPI package name, e.g. 'lodash' or 'react'

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• regwatch_preview read-only

  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.

  Parameters:

  • since — string — ISO-8601 instant; only changes detected after this

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• tariffwatch_preview read-only

  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.

  Parameters:

  • hts — string — HTS code prefix, e.g. '6109' or '8471.30'
  • since — string — ISO-8601 instant; only changes detected after this

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

Publisher website Repository

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.