io.github.codespar/mcp-certta

certta

Is the io.github.codespar/mcp-certta MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-27.

DEPRECATED: no live endpoint (api.certta.com.br does not resolve)

alive probed 2026-11-14 · unchanged since 2026-10-27

11tools

2.4ktokens in Claude Opus 5.5

1.2 %of Claude's 200k window

1.0×the median server

346 msto initialize

44 msto list tools

Run it: npx -y @codespar/mcp-certta@0.1.3 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: certta 0.1.0
Capabilities: tools
Instructions: 281 characters
Of a 1M window: 0.2 % of a 1M context window
Count: 2.4k tokens in Claude Opus 5.5, exact, measured 2026-10-27. With the Claude Code prefix mcp__…__ on each tool name: 2.5k. The o200k_base estimate is 1.3k. Counted again when the tool definitions change. Method.
Repository: https://github.com/codespar/mcp-dev-latam
Registry: active, updated 2026-09-27 · registry entry
Changes: 2 recorded, reachable in 2 of them. A row is added when the result, the tool count or the cost changes.

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.81×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
signature_icp_create	290	160	12 %
antifraud_score	277	153	12 %
signature_electronic_create	245	135	10 %
onboarding_process_create	241	133	10 %
biometrics_face_match	239	132	10 %

Other registry entries on npmjs.com, the ones next to this name; all of them.

Servers that mention deprecated or endpoint.

We add a row when the result changes. A server with no change keeps its last row.

Probed	Result	Init	Tools	Claude	o200k
2026-10-27 06:52	alive	199 ms	11	2.4k	1.3k
2026-10-20 06:41	alive	346 ms	11		1.3k

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.