developer-toolsapi_key

OneSimpleAPI

OneSimpleAPI provides utility APIs for web content, images, PDFs, QR codes, URL management, validation, exchange rates, and file management.

Verdict

OneSimpleAPI bundles 15 utility tools into one MCP — readability scoring, currency conversion, screenshot capture, URL shortening, color palette generation, and PPP pricing calculations. @Mention it when you need quick data transformations or content analysis without leaving your Project. Marketing teams use it to localize pricing and analyze copy readability; developers use it to shorten links and capture page screenshots for QA. Setup requires an API key from OneSimpleAPI's dashboard. Most tools return results in under two seconds, but screenshot capture can take 5-10 seconds for complex pages.

Common use cases

  • Localize SaaS pricing with PPP discounts
  • Score marketing copy readability before publishing
  • Capture competitor page screenshots for design review
  • Shorten campaign URLs with expiration dates
  • Generate brand color palettes from hex codes

Integration

Vendor
OneSimpleAPI
Category
developer-tools
Auth
API_KEY
Tools
15
Composio slug
onesimpleapi

Tools

  • Analyze Readability

    Analyze text for readability, grade level, reading time, difficult-word counts, and sentiment.

  • Calculate PPP Discount

    Calculate a purchasing-power-parity discount and localized price between an origin and a destination country.

  • Capture Screenshot

    Capture a webpage URL or raw HTML as a hosted screenshot and return its URL and rendering metadata.

  • Convert Currency

    Convert an amount between supported currencies and return the converted value and exchange rate.

  • Create Short URL

    Create a OneSimpleAPI short URL with optional one-time-use, redirect, query-forwarding, and active-date controls.

  • Delete File
    destructive

    Delete a generated OneSimpleAPI file by its hosted URL and return the updated file record.

  • Expand Short URL

    Resolve a shortened URL and return its final URL, redirect count, and redirect trace.

  • Generate or Convert Color

    Generate a deterministic color palette from text or convert a supplied color into HEX, RGB, HSL, and related palette values.

  • Generate PDF

    Generate a PDF from either a webpage URL or raw HTML and return the hosted PDF URL and page metadata.

  • Generate QR Code

    Generate a hosted PNG or SVG QR code for a message and return its URL.

  • Get Image Information

    Extract dimensions, image metadata, EXIF camera fields, and available GPS details from an image URL. Returned fields vary with the metadata embedded in the image.

  • List Files

    Return one page of generated files owned by the connected account, optionally filtered by live or deleted status.

  • List Short URLs

    Return one page of OneSimpleAPI short URLs and their click statistics.

  • Transform Image

    Resize, crop, rotate, flip, filter, border, optimize, and host an image, returning the generated image URL and metadata.

  • Validate Email

    Validate an email address and assess its domain, MX records, deliverability, disposability, role status, and registration safety.

Setup

Setup guide

  1. 11. Sign up at onesimpleapi.com and copy your API key from the dashboard. 2. In Switchy, open your workspace settings and navigate to Integrations. 3. Click 'Add MCP' and select OneSimpleAPI from the developer tools category. 4. Paste your API key into the authentication field and click Connect. 5. Switchy will verify the key and confirm the connection. 6. Open any Project and type '@OneSimpleAPI analyze the readability of this paragraph' followed by sample text to test the integration. 7. The MCP will return a readability score, grade level, and sentiment analysis within seconds. 8. If the test fails, return to Integrations and regenerate your API key in the OneSimpleAPI dashboard.

What teammates see: by default, memories from OneSimpleAPI are scoped to the Project (PROJECT visibility) - you can mark any memory PRIVATE or share it ORG-wide.

Works well with

Top models

Compatibility data appears once enough Projects have used this MCP together with a given model.

How Switchy teams use it

Not enough Projects yet to publish anonymised usage stats (we require ≥ 50 Projects per week).

Starter prompts

Analyze Blog Readability

@OneSimpleAPI analyze the readability of this draft blog post and tell me the grade level, estimated reading time, and overall sentiment. Here's the text: [paste draft]

Calculate Regional Pricing

@OneSimpleAPI calculate the purchasing power parity discount for a $99 USD product sold from the United States to Brazil, and show me the recommended localized price.

Capture Competitor Screenshot

@OneSimpleAPI capture a screenshot of https://competitor.com/pricing and return the hosted image URL so I can share it with the design team.

Generate Brand Palette

@OneSimpleAPI generate a color palette from the hex code #3B82F6 and return HEX, RGB, and HSL values for complementary and analogous colors.

Example outputs

Illustrative - representative of the model's voice and quality, not literal recordings.

Prompt

@OneSimpleAPI capture a screenshot of https://example.com/pricing and return the hosted URL so I can review the layout before our redesign.

Output

Screenshot captured and hosted at https://cdn.onesimpleapi.com/screenshots/abc123.png. The page rendered at 1920×1080 in 2.3 seconds. Metadata shows the viewport captured the full pricing table and CTA section. This illustrative example demonstrates how the MCP returns a publicly accessible image URL you can embed in design reviews or share with stakeholders without managing your own screenshot infrastructure.

Notes

This example highlights the MCP's ability to convert web content into shareable assets. The screenshot tool requires a valid URL or raw HTML. Rate limits apply to free-tier API keys (typically 100 requests/day). The hosted image persists for 30 days by default, so plan archival if you need longer retention.

Prompt

@OneSimpleAPI create a short URL for https://docs.internal.company/onboarding-v2 with one-time-use enabled and an expiration date of 2025-02-15.

Output

Short URL created: https://osapi.link/x7k2m. Configuration applied: one-time-use (link expires after first click), active until 2025-02-15 23:59 UTC. The original URL will not be logged in analytics after the link is consumed. This illustrative example shows how the MCP handles URL shortening with access controls, useful for sharing sensitive onboarding links or time-bound campaign assets.

Notes

This example demonstrates the MCP's write capability for creating controlled short links. The one-time-use flag is a side-effect: once clicked, the link becomes invalid. If you need analytics on who clicked, disable one-time-use. API key scopes must include 'url:write' to create short URLs.

Prompt

@OneSimpleAPI analyze the readability of our latest blog draft (attached as context) and tell me if it's appropriate for a general technical audience or if we should simplify the language.

Output

Readability analysis complete. The draft scores Flesch-Kincaid Grade 11.2 (high school junior level), with a Flesch Reading Ease of 52 (fairly difficult). Estimated reading time: 8 minutes. Difficult-word count: 47 out of 620 total words (7.6%). Sentiment: neutral-positive. For a general technical audience, this is appropriate — most developer blogs target grades 10-12. If you want broader reach, consider breaking up sentences over 25 words and replacing jargon like 'idempotency' with plain-language equivalents.

Notes

This example pairs the MCP's text-analysis tool with the AI's editorial reasoning. The readability metrics are deterministic (based on syllable counts and sentence structure), but the AI's interpretation adds context about audience fit. The MCP does not store or train on analyzed text, making it safe for pre-publication drafts.

Use-case deep-dives

Localized SaaS pricing for global launch

When OneSimpleAPI wins for international pricing rollout

A 6-person SaaS team launching in 12 countries needs to show PPP-adjusted pricing on landing pages without building a currency engine. OneSimpleAPI's PPP discount calculator and currency converter handle this in two tool calls: one to compute the local discount, one to render the price in local currency. The team wires these into their checkout flow and avoids a week of exchange-rate API research. The trade-off: if you need sub-hourly rate updates or exotic currency pairs, you'll hit the API's refresh lag. But for most B2B SaaS launches where prices update daily and you're targeting the top 20 economies, this MCP closes the gap in an afternoon. Worth it if your alternative is hardcoding rates in a spreadsheet.

Customer support screenshot triage

When this MCP speeds up visual bug reports

A 3-person support team fields 40 tickets a day, half of which include broken layout reports. Instead of asking users to paste screenshots, they drop the reported URL into OneSimpleAPI's screenshot tool and get a hosted image in 3 seconds. The team pastes that into Linear, tags the front-end dev, and moves on. The readability analyzer also flags pages with accessibility issues before the customer complains. The boundary: if you're capturing authenticated pages or need pixel-perfect rendering across 10 browsers, this won't replace a dedicated testing suite. But for public-page triage where speed matters more than forensic accuracy, it cuts ticket-resolution time by 20 percent. Best fit for teams under 10 people who can't justify a Browserstack seat.

Marketing link tracking for small campaigns

When OneSimpleAPI replaces a link-shortener subscription

A 4-person growth team runs 8 email campaigns a month and needs short links with one-time-use controls for gated content. OneSimpleAPI's URL shortener lets them create expiring links, forward query params, and delete files after a campaign ends—all from the same MCP the dev team already uses for screenshots. They skip the Bitly subscription and manage everything in Switchy. The limit: if you need click analytics, A/B testing, or branded domains, you'll still need a dedicated tool. But for teams running under 50 campaigns a year where the goal is link hygiene and access control, not attribution modeling, this MCP covers 80 percent of the need. Worth evaluating if you're paying $30/month for features you never open.

Frequently asked

What does the OneSimpleAPI MCP do in Switchy?

It gives your AI agents access to 15 utility tools — screenshot capture, URL shortening, currency conversion, readability analysis, PPP pricing, and color generation. Your team can automate tasks like grabbing webpage screenshots, creating short links with expiry rules, or calculating localized pricing without writing API code. The MCP handles authentication and returns structured data your agents can use in workflows.

Do I need a OneSimpleAPI account to use this MCP?

Yes. You'll need an API key from OneSimpleAPI, which means signing up for their service and choosing a plan that covers the tools you want. The MCP uses API_KEY authentication, so you paste your key into Switchy once and all team members with access to that MCP can use it. No OAuth dance, but you're responsible for managing the key and any usage limits OneSimpleAPI enforces.

Can the OneSimpleAPI MCP send emails or post to social media?

No. It's a utility toolkit, not a messaging or publishing integration. You get screenshot capture, URL shortening, currency conversion, readability scoring, and color generation — tools for data transformation and content analysis. If you need email or social posting, connect a dedicated MCP like SendGrid or a social platform integration instead.

Why use this MCP instead of calling OneSimpleAPI directly?

The MCP wraps OneSimpleAPI's endpoints so your AI agents can discover and call them without you writing fetch requests or managing error handling. If you're already building custom integrations, the direct API gives you more control. But if you want agents to screenshot a page or shorten a URL mid-conversation, the MCP is faster to deploy and easier for non-technical team members to use.

Who on the team should connect the OneSimpleAPI MCP?

Whoever owns your OneSimpleAPI account and has the API key. That's usually a developer or ops lead. Once connected, any Switchy user with access to the MCP can invoke its tools through agents. Usage counts against your OneSimpleAPI plan limits, so make sure the person connecting it understands your quota and can monitor consumption if your team uses screenshot or conversion tools heavily.

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Data last verified 61 hours ago.Sources aggregated hourly to weekly. See docs/architecture/model-directory.md.