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Generate patent-office-compliant figures via the PatentFig AI API — patent line art from text (PNG or SVG), vectorize drawings to SVG/DXF/vector PDF, AI-upscale images, and convert to filing-ready TIFF/PDF/PNG. Use when the user asks for patent drawings, patent figures, invention
Generate patent-office-compliant figures via the PatentFig AI API — patent line art from text (PNG or SVG), vectorize drawings to SVG/DXF/vector PDF, AI-upscale images, and convert to filing-ready TIFF/PDF/PNG. Use when the user asks for patent drawings, patent figures, invention diagrams, USPTO/EPO-compliant line art, vectorizing a drawing for CAD, or preparing figures for a patent filing. Requires a PATENTFIG_API_KEY environment variable.
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Generate and convert patent figures through the PatentFig AI REST API.
https://patentfig.ai/api/v1Authorization: Bearer $PATENTFIG_API_KEY{ "success": true, "data": {...} } on success, { "success": false, "error": { "code", "message" } } on failure.https://cdn.patentfig.ai — pass them to the user or feed them into follow-up calls.The key comes from the PATENTFIG_API_KEY environment variable. Never hardcode it, print it, or write it into files or logs.
If the variable is not set, tell the user to create a key at https://patentfig.ai/settings/api-keys (requires a PatentFig AI account; keys start with pfig_) and export it:
export PATENTFIG_API_KEY="pfig_..."
Verify connectivity and credit balance (free call):
curl -s https://patentfig.ai/api/v1/credits \
-H "Authorization: Bearer $PATENTFIG_API_KEY"
# → { "success": true, "data": { "balance": 500 } }
POST /figures — the core endpoint. One prompt → one figure. Views, diagram type, and composition are all controlled through the prompt; for a multi-view set (front/side/top), make one call per view.
curl -s -X POST https://patentfig.ai/api/v1/figures \
-H "Authorization: Bearer $PATENTFIG_API_KEY" \
-H "Content-Type: application/json" \
--max-time 300 \
-d '{
"prompt": "Exploded view of a wireless earbud charging case showing lid, hinge, charging coil, and battery",
"output": "svg",
"labeled": true
}'
output: "png" (raster figure) or "svg" (stroke-based line art, CAD-friendly). Default "png".labeled: true adds patent-style numeric reference callouts (100, 102, …).referenceImageUrls: up to 4 public image URLs (sketch/photo/prior figure) used as the structural baseline.data.url is the figure; with output: "svg" the full SVG source is also in data.svg.Prompting tips: name the parts to draw (names tell the model WHAT to draw, not what to label); for flowcharts/block diagrams, name every node explicitly.
All three endpoints accept either JSON with imageUrl (public URL) or multipart/form-data with a file field (PNG/JPEG/WebP/TIFF, ≤10 MB).
Vectorize (20 credits) — raster → SVG / DXF / vector PDF:
curl -s -X POST https://patentfig.ai/api/v1/vectorize \
-H "Authorization: Bearer $PATENTFIG_API_KEY" \
-H "Content-Type: application/json" \
--max-time 300 \
-d '{ "imageUrl": "https://example.com/drawing.png", "format": "dxf", "engine": "lineart" }'
engine: "lineart" (default) redraws as clean single-stroke patent line art — use for CAD/DXF. engine: "trace" reproduces the input pixels faithfully, preserving fills — use when output must match the original.
Enhance (20 credits) — AI super-resolution: POST /enhance with scale (2 or 4, controls pixels) and dpi (300 or 600, metadata stamp only).
Convert (20 credits) — filing-ready raster: POST /convert with format (png/tiff/pdf) and dpi (300 or 600).
Full parameter tables for every endpoint: see references/endpoints.md. Machine-readable spec: https://patentfig.ai/api/openapi.yaml
429 back off (start at 5s) and retry.402 INSUFFICIENT_CREDITS, stop and tell the user to top up at https://patentfig.ai/pricing.500 GENERATION_FAILED, one retry is reasonable; persistent failures usually mean the input doesn't suit the pipeline (e.g., a photo sent for line-art vectorization — suggest POST /figures with the photo as referenceImageUrls instead).GET /credits and confirm the balance covers it.name: patentfig-ai-patent-drawing description: Generate patent-office-compliant figures via the PatentFig AI API — patent line art from text (PNG or SVG), vectorize drawings to SVG/DXF/vector PDF, AI-upscale images, and convert to filing-ready TIFF/PDF/PNG. Use when the user asks for patent drawings, patent figures, invention diagrams, USPTO/EPO-compliant line art, vectorizing a drawing for CAD, or preparing figures for a patent filing. Requires a PATENTFIG_API_KEY environment variable. license: MIT metadata: slug: patentfig-ai-patent-drawing displayName: PatentFig AI Patent Drawing version: 1.0.0 summary: Generate patent line art, numbered figures, and filing-ready vector or raster outputs with PatentFig AI. author: TopLocalAI, LLC homepage: https://patentfig.ai repository: https://github.com/TopLocalAI/patentfig-skill docs: https://patentfig.ai/docs
---
name: patentfig-ai-patent-drawing
description: Generate patent-office-compliant figures via the PatentFig AI API — patent line art from text (PNG or SVG), vectorize drawings to SVG/DXF/vector PDF, AI-upscale images, and convert to filing-ready TIFF/PDF/PNG. Use when the user asks for patent drawings, patent figures, invention diagrams, USPTO/EPO-compliant line art, vectorizing a drawing for CAD, or preparing figures for a patent filing. Requires a PATENTFIG_API_KEY environment variable.
license: MIT
metadata:
slug: patentfig-ai-patent-drawing
displayName: PatentFig AI Patent Drawing
version: 1.0.0
summary: Generate patent line art, numbered figures, and filing-ready vector or raster outputs with PatentFig AI.
author: TopLocalAI, LLC
homepage: https://patentfig.ai
repository: https://github.com/TopLocalAI/patentfig-skill
docs: https://patentfig.ai/docs
---
# PatentFig AI API
Generate and convert patent figures through the PatentFig AI REST API.
- **Base URL**: `https://patentfig.ai/api/v1`
- **Auth**: `Authorization: Bearer $PATENTFIG_API_KEY`
- **All endpoints are synchronous** and return JSON: `{ "success": true, "data": {...} }` on success, `{ "success": false, "error": { "code", "message" } }` on failure.
- Generated files are returned as URLs on `https://cdn.patentfig.ai` — pass them to the user or feed them into follow-up calls.
## Setup
The key comes from the `PATENTFIG_API_KEY` environment variable. Never hardcode it, print it, or write it into files or logs.
If the variable is not set, tell the user to create a key at https://patentfig.ai/settings/api-keys (requires a PatentFig AI account; keys start with `pfig_`) and export it:
```bash
export PATENTFIG_API_KEY="pfig_..."
```
Verify connectivity and credit balance (free call):
```bash
curl -s https://patentfig.ai/api/v1/credits \
-H "Authorization: Bearer $PATENTFIG_API_KEY"
# → { "success": true, "data": { "balance": 500 } }
```
## Generate a patent figure (10 credits)
`POST /figures` — the core endpoint. One prompt → one figure. Views, diagram type, and composition are all controlled through the prompt; for a multi-view set (front/side/top), make one call per view.
```bash
curl -s -X POST https://patentfig.ai/api/v1/figures \
-H "Authorization: Bearer $PATENTFIG_API_KEY" \
-H "Content-Type: application/json" \
--max-time 300 \
-d '{
"prompt": "Exploded view of a wireless earbud charging case showing lid, hinge, charging coil, and battery",
"output": "svg",
"labeled": true
}'
```
- `output`: `"png"` (raster figure) or `"svg"` (stroke-based line art, CAD-friendly). Default `"png"`.
- `labeled: true` adds patent-style numeric reference callouts (100, 102, …).
- `referenceImageUrls`: up to 4 public image URLs (sketch/photo/prior figure) used as the structural baseline.
- Response `data.url` is the figure; with `output: "svg"` the full SVG source is also in `data.svg`.
Prompting tips: name the parts to draw (names tell the model WHAT to draw, not what to label); for flowcharts/block diagrams, name every node explicitly.
## Convert an existing image
All three endpoints accept either JSON with `imageUrl` (public URL) or `multipart/form-data` with a `file` field (PNG/JPEG/WebP/TIFF, ≤10 MB).
**Vectorize (20 credits)** — raster → SVG / DXF / vector PDF:
```bash
curl -s -X POST https://patentfig.ai/api/v1/vectorize \
-H "Authorization: Bearer $PATENTFIG_API_KEY" \
-H "Content-Type: application/json" \
--max-time 300 \
-d '{ "imageUrl": "https://example.com/drawing.png", "format": "dxf", "engine": "lineart" }'
```
`engine: "lineart"` (default) redraws as clean single-stroke patent line art — use for CAD/DXF. `engine: "trace"` reproduces the input pixels faithfully, preserving fills — use when output must match the original.
**Enhance (20 credits)** — AI super-resolution: `POST /enhance` with `scale` (2 or 4, controls pixels) and `dpi` (300 or 600, metadata stamp only).
**Convert (20 credits)** — filing-ready raster: `POST /convert` with `format` (`png`/`tiff`/`pdf`) and `dpi` (300 or 600).
Full parameter tables for every endpoint: see [references/endpoints.md](references/endpoints.md). Machine-readable spec: https://patentfig.ai/api/openapi.yaml
## Operational rules
- Before any credit-consuming call, state the operation and its credit cost,
then get the user's confirmation immediately before execution.
- **Set a client timeout of at least 300 seconds** — generation and vectorization take from ~20s up to a few minutes.
- Credits are charged **only on success**; retrying a failed call never double-bills.
- Rate limit: 60 requests/minute per key. On `429` back off (start at 5s) and retry.
- On `402 INSUFFICIENT_CREDITS`, stop and tell the user to top up at https://patentfig.ai/pricing.
- On `500 GENERATION_FAILED`, one retry is reasonable; persistent failures usually mean the input doesn't suit the pipeline (e.g., a photo sent for line-art vectorization — suggest `POST /figures` with the photo as `referenceImageUrls` instead).
- Before a batch of billable calls, check `GET /credits` and confirm the balance covers it.
Free to get does not mean free to run. Price labels are not safety ratings. Submit pricing information →
Source needs review
The tracked source changed or could not be synchronized. Review the current source before installing.
Review before install: Avoid automatic install
License: MIT
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Check the source for dependencies, API keys and third-party costs. A public repository does not mean every service is free.
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Quality
53/100
Needs review
Trust
51/100
Do not auto-install
Audit
68/100
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Copies are not installs. Installation counts require a reported successful installation; they are not a blanket quality guarantee.
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