PLEXUS is the intelligence layer between raw data and decisions that matter. Most APIs give you a database lookup. PLEXUS gives you a verdict. Query any entity, topic, or question and get back synthesized intelligence drawn from across the world's knowledge — regulatory records, court filings, scientific literature, financial data, legal databases, cultural archives, historical records, and more — in a single call. Three tiers of access: INTELLIGENCE PRODUCTS — Scored, synthesized reports that combine multiple sources into a single 0-100 signal with per-source breakdown. Company risk, political exposure, supply chain screening, healthcare due diligence, nonprofit transparency. One call, one verdict. DATA ADAPTERS — Direct normalized access to hundreds of data sources across government, science, law, finance, health, environment, history, and culture. Same interface, every source. AI REASONING ENGINES — Proprietary cognitive tools built for agent pipelines: adversarial deliberation, quality scoring, claim verification, safety gating, gap detection, signal diversity analysis. The thinking layer your pipeline is missing. Two ways to access: x402 protocol — pay per call in USDC on Base mainnet, no API keys, no accounts. Agents discover and pay autonomously. RapidAPI — traditional subscription tiers for teams that prefer key-based billing. Built by Silent Ampersand LLC.

MCP readiness

B · 80/100

Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here C+, 70.0/100), which weighs availability, conformance, p95 speed and descriptor. How the two differ

Valid MCP handshake	10/10	initialize and tools/list both answered.
Live MCP endpoint	25/25	Endpoint answers the MCP initialize handshake (2224 ms).
Protocol revision	5/10	Speaks MCP 2025-03-26, 3 revision(s) behind 2026-07-28.
Signed descriptor	n/a	No MCP standard defines a signed server descriptor.
Uptime (30 days)	15/15	30/30 probes succeeded over 30 days (100%).
Tool declaration	10/10	Lists 60 tool(s) with descriptions.
Verified identity	5/10	Publisher declared (repository, package or homepage); claim this listing to verify domain control.
Freshness + modern flags	0/5	not seen in a source for over 30 days.
Auth declaration	2/5	Declares credential scheme: smithery_api_key.

Applicable criteria total 90 points, scaled to 100.

Responsiveness: Responsive (2224 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).

Measured 2026-11-11.

Nine criteria, the same as the A2A readiness score, read from our daily MCP probe (initialize + tools/list) and 30-day probe history. No MCP standard defines a signed server descriptor, so that criterion is n/a and the other 90 points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. Display only: search order uses the quality grade.

Compared with peers

Against 53,039 reachable MCP servers in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.

Readiness: Higher than 45% of peers; This listing 80 · peer median 81
Latency: Faster than 22% of peers; This listing 601 ms · peer median 326 ms

Where it loses the most points, and how to win them back

Protocol revision −5 — Support the current protocol revision.
Now: Speaks MCP 2025-03-26, 3 revision(s) behind 2026-07-28.
Verified identity −5 — Claim the listing and prove control of its domain.
Now: Publisher declared (repository, package or homepage); claim this listing to verify domain control.
Freshness + modern flags −5 — Keep the listing current in the registry or source it comes from.
Now: not seen in a source for over 30 days.

How many agent tools actually work · All statistics

Listed in

Directories this entry was found in.

smithery since 2026-08-25 ↗

How to connect

MCP endpoint (streamable-http)

https://server.smithery.ai/dk-dkes/plexus-intelligence/mcp

JSON-RPC initialize probe

curl -X POST https://server.smithery.ai/dk-dkes/plexus-intelligence/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'

Homepage

https://www.silentampersand.com

Listed at (smithery)

https://www.silentampersand.com