Install Jentic One Beta
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Cofferdock API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.
Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.
Step 1: Jentic One Host machine
# On the machine that will host your Jentic One instance:
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fcofferdock.com%2Fcofferdock" | shStep 2: Agent machine
# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fcofferdock.com%2Fcofferdock" | sh
jentic register # connects your agent to your Jentic One instanceJentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.
What an agent can do with Cofferdock API.
Convert documents between formats: HTML or Markdown to PDF or image, and images to or from PDF
Manipulate PDFs by merging, splitting, rotating, compressing, watermarking, and password-protecting them
Transform images by resizing, converting, watermarking, and reading or stripping EXIF metadata
Convert tabular data between CSV, JSON, and Excel and render it as a table image or PDF
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Read text from images and scanned PDFs with OCR
Generate QR codes, barcodes, charts, hashes, UUIDs, and URL slugs
Validate emails, phone numbers, IBANs, credit card numbers, URLs, and Spanish tax IDs
Patterns agents use Cofferdock API for, with concrete tasks.
★ Document and Data Tools Through Jentic
An AI agent that needs to produce or process files can call Cofferdock through Jentic instead of integrating each tool by hand. The agent converts an HTML report to PDF, merges it with another document, runs OCR on a scanned attachment, and validates the email it will send it to, all behind one key. Because every tool takes its input in the request body, the agent's reach is bounded by the operations you allow.
Convert an HTML report to PDF, merge it with an existing PDF, and return the combined file
Document Generation and PDF Processing
A workflow can build and process documents end to end: render HTML or Markdown to PDF, add page numbers and a watermark, merge or split pages, compress the result, and protect it with a password. OCR turns a scanned PDF into searchable text when the source is an image.
Render a Markdown invoice to PDF, add page numbers, watermark it, and password-protect the final file
Data Format Conversion
Cofferdock moves tabular and text data between formats so a pipeline does not need its own parsers. It converts CSV to JSON and back, reads an Excel sheet to JSON, writes JSON to Excel, turns Markdown into HTML, and renders data as a table image or PDF.
Convert an uploaded CSV file to JSON and render the same data as a table image
Input Validation for Forms and Agents
Before acting on user-supplied data, an agent can validate it with Cofferdock. It checks email addresses, phone numbers, IBANs, credit card numbers, URLs, and Spanish tax IDs, and measures password strength, so a workflow can reject bad input early.
Validate a submitted email address, phone number, and IBAN and return which ones are valid
45 endpoints — the cofferdock api is a toolkit of on-demand document, image, and data operations behind one key.
METHOD
PATH
DESCRIPTION
Convert HTML to PDF
/pdf-merge
Merge 2 to 20 PDFs into one
/image-ocr
Read text from an image with OCR
/screenshot
Screenshot a public web page
/csv-to-json
Convert CSV to JSON
/qr
Generate a QR code
/validate-email
Validate an email address
/status
Check your plan and remaining credits
Convert HTML to PDF
/pdf-merge
Merge 2 to 20 PDFs into one
/image-ocr
Read text from an image with OCR
/screenshot
Screenshot a public web page
/csv-to-json
Convert CSV to JSON
/qr
Generate a QR code
/validate-email
Validate an email address
/status
Check your plan and remaining credits
What agents get from Jentic-routed access to this vendor.
Setup
Wiring the Cofferdock API by hand means passing your key in the x-api-key header, choosing whether to send each file as base64 JSON or raw bytes, and watching the shared monthly credit pool. Through Jentic you install once, import Cofferdock from the API Directory, store the key once, and your agent calls it.
Permission scoping
Cofferdock takes each file or input in the request body, so rules bound which operations your agent may call, not which file it acts on. Limit it to the tools it needs, such as the PDF and image operations, so others like password removal or metadata writing are not included unless you add them.
Credential isolation
Your Cofferdock key is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.
Intent-based discovery
Agents search Jentic by intent such as convert HTML to PDF or read text from an image, and Jentic returns the matching Cofferdock operation with its input schema so the agent calls the right endpoint without reading the reference docs.
Alternatives and complements available in the Jentic catalogue.
Specific to using Cofferdock API through Jentic.
What authentication does the Cofferdock API use?
The Cofferdock API authenticates with an API key in the x-api-key header, per its OpenAPI spec; a status operation returns your plan and remaining credits. Through Jentic the key is stored encrypted by your own Jentic One instance and injected at call time, so it never reaches the agent's context.
What document and image tools does the Cofferdock API offer?
It converts HTML or Markdown to PDF, merges, splits, rotates, compresses, watermarks, and password-protects PDFs, runs OCR on images and scanned PDFs, and resizes, converts, or watermarks images. It also generates QR codes, barcodes, charts, and collages, and converts between CSV, JSON, and Excel.
Is the Cofferdock API free, and how is usage counted?
All tools share one account and one monthly pool of credits, where one successful call costs one credit and failed calls are not charged, per the API's own notes. A free plan is available; check the vendor documentation at https://cofferdock.com for current plan limits.
How do I convert a document with the Cofferdock API through Jentic?
Install Jentic One, then import Cofferdock from the API Directory and store your key once. Your agent searches by intent such as convert HTML to PDF, and Jentic returns the matching operation with its input schema so the agent sends the input and gets the output file or data back. To run it on your own infrastructure, install Jentic One from its GitHub repo.
Is there a Cofferdock API MCP server?
You don't need an MCP server to give your agent the Cofferdock API. Jentic connects it directly from the API Directory: import it, store your key once, and your agent calls the conversion, PDF, and image operations on demand. Operations are discovered when the agent needs them, so they do not fill its context ahead of time.
Can I limit what my agent is allowed to do with the Cofferdock API?
Yes. Cofferdock carries each input in the request body, so a rule bounds which of its tools your agent may call. Allow only the operations it needs, such as HTML-to-PDF and image OCR, and the rest of the toolkit stays out of reach. Every call the agent makes is logged.
For Agents
Convert HTML, Markdown, images, and tabular data between formats, manipulate and OCR PDFs, generate QR codes and barcodes, and validate emails, phones, and IBANs, all behind one key. Tools share a single credit pool.
Use for: I want to convert an HTML page to a PDF, Merge several PDFs into one file, Read the text from a scanned document with OCR, Generate a QR code for a URL
Not supported: Does not store files long-term, host documents, or send email. Use for on-demand document, image, and data conversion, OCR, generation, and validation only.
The Cofferdock API is a toolkit of on-demand document, image, and data operations behind one key. It converts HTML and Markdown to PDF or images, manipulates PDFs by merging, splitting, rotating, compressing, watermarking, and password-protecting them, and transforms images by resizing, converting, watermarking, and reading or stripping EXIF metadata. It also converts tabular data between CSV, JSON, and Excel, runs OCR on images and scanned PDFs, generates QR codes, barcodes, charts, hashes, and UUIDs, and validates emails, phone numbers, IBANs, and more. Every tool shares one account and a single monthly pool of credits.
This API is usable in Jentic One now. Its AI-readiness score against Jentic's framework shows where it stands today and where improvements would make it even easier for agents to use.
Base layer of spec validity and structural soundness.
Aggregated quality score from linter diagnostics, weighted by severity.
Percentage of `$ref` references that resolve successfully.
Checks whether the API description parses successfully and conforms to its declared specification (e.g., OpenAPI).
Structural correctness score based on schema issues using logarithmic dampening.
Clarity, completeness, and ingestion readiness for developers and tooling.
How richly the API is illustrated with examples.
Percentage of examples that conform to their schemas.
Percentage of operations with complete response definitions (success, client error, server error).
Health of API ingestion, bundling, and resolution within Jentic pipelines.
Semantic breadth, depth, and agent comprehension for AI systems.
Coverage of descriptions across API elements.
Coverage of RFC 9457 Problem Details for error responses.
Coverage, uniqueness, and casing consistency of operationIds for AI inference.
Coverage of summaries across operations/tags/info.
Functional utility, complexity comfort, and AI orchestration readiness.
Agent comfort level based on API operational and structural complexity.
Trust, risk posture, and security compliance.
Average quality of security schemes based on authentication method strength (weakest link for OAuth2).
Findability, semantic richness, and reasoning readiness.
Clarity and depth of descriptions across API elements.
Score it yourself
Every API in the directory is allowlisted, so you can re-score it with no key required.
npx @jentic/api-scorecard-cli score <openapi-url>