JustFill PDF Forms
https://justfill.app/api/mcp ↗
Description
Fill any PDF form with AI agents — ML field detection on scans, an agent-review loop, reusable templates, and native AcroForm fill via [justfill.app](https://justfill.app). Works with Claude, ChatGPT, n8n and any MCP client. Hosted OAuth endpoint, no install.
What our measurements say
JustFill PDF Forms is a remote MCP server published at justfill.app. It has been probed 29 times since 9/10/2026. It answered in 29 of them (100.0%), a near-uninterrupted record. Median response time is 321 ms, placing it among the faster endpoints. Its tool list could not be read; the server is closed to direct calls. It answers direct calls with an authentication wall.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Agent readability score
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| Run | Era | Modern | ms | Legacy | ms | Versions |
|---|---|---|---|---|---|---|
| 2026-09-13 08:43:04 | Auth-gated | 401 | 356 | 401 | 347 | — |
| 2026-09-13 06:40:42 | Auth-gated | 401 | 149 | 401 | 160 | — |
| 2026-09-13 04:35:29 | Auth-gated | 401 | 277 | 401 | 285 | — |
| 2026-09-13 01:33:33 | Auth-gated | 401 | 334 | 401 | 340 | — |
| 2026-09-12 23:31:36 | Auth-gated | 401 | 197 | 401 | 204 | — |
| 2026-09-12 21:29:15 | Auth-gated | 401 | 452 | 401 | 454 | — |
| 2026-09-12 19:27:29 | Auth-gated | 401 | 229 | 401 | 436 | — |
| 2026-09-12 17:24:09 | Auth-gated | 401 | 380 | 401 | 373 | — |
| 2026-09-12 15:21:42 | Auth-gated | 401 | 236 | 401 | 229 | — |
| 2026-09-12 13:29:16 | Auth-gated | 401 | 272 | 401 | 269 | — |
Availability history
Each block is one measurement round. Green: working response. Amber: responded but the server was returning errors (5xx). Red: no response at all.
Era history
Each cell is one probe run. Faded cells are incomplete probes — one leg did not answer, so the era is inconclusive.
Response time history
The two probe legs separately: modern server/discover and legacy initialize.
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Auth-gated
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[](https://mcpmetrics.io/servers/maciej-sniezynski-justfill)<a href="https://mcpmetrics.io/servers/maciej-sniezynski-justfill"><img src="https://mcpmetrics.io/badge/maciej-sniezynski/justfill/era.svg" alt="mcpmetrics"></a>You are seeing the last 7 days. Sign up for the full history. Which check failed and why is in the dashboard.
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