MCP readiness

B · 89/100

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 A, 99.3/100), 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 (287 ms).
Protocol revision	8/10	Speaks MCP 2025-11-25, 1 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 18 tool(s) with descriptions.
Verified identity	8/10	Publisher declared (repository, package or homepage) and domain control verified on agent-tools.cloud (company-registry check not available yet).
Freshness + modern flags	0/5	not seen in a source for over 30 days.
Auth declaration	4/5	Declares OAuth (MCP authorization requires PKCE).

Applicable criteria total 90 points, scaled to 100.

Responsiveness: Responsive (287 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).

Measured 2026-11-10.

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 52,570 reachable MCP servers in our daily snapshot (2026-11-11 14:47 UTC). Display only; it does not change search order.

Readiness: Higher than 96% of peers; This listing 89 · peer median 81
Latency: Faster than 72% of peers; This listing 200 ms · peer median 371 ms

Where it loses the most points

Freshness + modern flags −5 — not seen in a source for over 30 days.
Protocol revision −2 — Speaks MCP 2025-11-25, 1 revision(s) behind 2026-07-28.
Verified identity −2 — Publisher declared (repository, package or homepage) and domain control verified on agent-tools.cloud (company-registry check not available yet).

How many agent tools actually work · All statistics

Adoption signals

Public signals from outside this directory, shown for context. They do not change search order or grades.

GitHub: ★ 3 · 1 forks; last push 2026-11-04

Listed in

Directories this entry was found in.

mcp-registry since 2026-09-28 capkey since 2026-10-26 ↗

How to connect

MCP endpoint (streamable-http)

https://www.arroway.app/api/mcp

JSON-RPC initialize probe

curl -X POST https://www.arroway.app/api/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.arroway.app

Source code

https://github.com/oaleviola/arroway-plugin