Catalog
Every x402, MPP, MCP, and skill listing we've indexed, normalized, and enriched.
Extract invoice fields from vendor PDFs into structured records
Uses invoice2data to turn invoice PDFs into structured JSON, CSV, or XML using supplier-specific templates. This is for repeatable invoice field extraction and renaming workflows, not for full accounting system automation or generic OCR catalog listings.
Extract data and complete workflows in your real logged-in browser
Use bb-browser when an agent needs to inspect pages, pull data, or complete form-driven tasks inside the user's actual logged-in Chrome session. It is for browser work where normal HTTP fetches fail because the important context lives behind auth, cookies, or internal web apps.
Extract clean article Markdown from web pages with Defuddle
Use Defuddle when an agent needs clean, metadata-rich article text or Markdown from noisy web pages before summarizing, indexing, or archiving them.
Expose Haystack pipelines as webhook endpoints with Hayhooks
Turn an existing Haystack pipeline into an HTTP or MCP endpoint without building and maintaining a custom wrapper service.
Expose FHIR healthcare data resources to MCP agents with review boundaries
Use a FHIR MCP server to query healthcare data resources for documentation and integration workflows while keeping PHI and clinical-use limits explicit.
Expose FastAPI routes as MCP tools with FastAPI-MCP
Mount FastAPI-MCP on an existing FastAPI app so agents can call authenticated route-backed MCP tools with preserved schemas.
Expose approved database operations to MCP clients with MCP Toolbox before ad hoc SQL glue sprawls
Use MCP Toolbox to turn database access into a constrained MCP tool surface, with prebuilt or custom tools that agents can call without hand-rolled wrappers for every project.
Export Obsidian vaults into clean Markdown trees for publishing or downstream processing
Convert Obsidian vault content, wikilinks, and attachments into portable Markdown trees before publishing, indexing, or migrating notes.
Export live HTML slide decks to PDF handouts before review or archival
Uses DeckTape to open an existing HTML slide deck and render it into a reviewable PDF or per-slide screenshots. It fits agent workflows that need a stable handout, attachment, or archive artifact from Reveal.js, Remark, WebSlides, and similar browser-based presentations.
ExifTool Metadata Reader and Writer for Images and Files
ExifTool by Phil Harvey is a comprehensive Perl-based CLI tool for reading, writing, and editing metadata in over 400 file types. It extracts EXIF, IPTC, XMP, GPS, and maker note data from images, videos, audio, PDFs, and documents, making it the industry standard for metadata fo
Execute DevOps delivery and infrastructure workflows with cc-devops-skills
Use generator and validator loops for infra, CI, and platform work so agents ship operational changes with more checks and less improvisation.
Excalidraw Virtual Whiteboard and Diagram SDK
Excalidraw is an open-source virtual whiteboard for creating hand-drawn style diagrams, wireframes, and sketches. With 103k+ GitHub stars, it provides an infinite canvas, real-time collaboration, end-to-end encryption, and a React component library for embedding in custom applica
Exa JS Web Search SDK for AI Applications
exa-js is the official JavaScript SDK for Exa, a web search API built for AI workflows. It gives agents a concrete way to search the web, retrieve page contents, and generate sourced answers from code instead of stitching raw HTTP calls by hand.
Evolve reusable coding-agent skills from failed trajectories with EvoSkill
Mine failed agent runs for reusable skills, benchmark the candidates, and keep only the variants that improve a supported coding agent over your baseline.
Evidence BI-as-Code SQL and Markdown Analytics Framework
Evidence is an open-source framework for building data products with SQL and Markdown. It generates interactive dashboards and reports as static sites, providing a code-driven alternative to drag-and-drop BI tools with version control and reproducibility built in.
Evaluate long-horizon agents against WildClawBench
Use WildClawBench to benchmark agents on hard end-to-end OpenClaw tasks covering tool orchestration, multimodal work, coding, safety, and long-horizon planning.
Evaluate B2B software vendors by interrogating their agents and scoring the evidence with buyer-eval-skill
Use Claude Code to run a structured vendor diligence workflow that questions vendor agents, cross-checks claims, and returns evidence-backed scorecards.
Estimate Terraform and OpenTofu cost deltas before infrastructure changes merge with Infracost
Show projected cloud cost increases or savings from Terraform and OpenTofu plans before a PR merges.
eSpeak NG Multilingual Speech Synthesizer
An agent skill built on eSpeak NG, the open-source formant-based speech synthesizer supporting over 100 languages and accents. Provides fast, lightweight text-to-speech synthesis via CLI and library API, with phoneme output, SSML support, and MBROLA voice integration for improved
ESLint Rule Violation Summarizer
Runs ESLint against a JS/TS codebase, groups violations by rule and file, and produces a prioritized fix plan. Distinguishes auto-fixable violations from manual ones. Outputs Markdown for GitHub PR comments.
ESLint Rule Impact Analyzer
Measures the impact of enabling new ESLint rules across a codebase using the ESLint Node.js API and @typescript-eslint/parser. Generates violation heatmaps, estimates auto-fix coverage, and prioritizes rules by fix effort.
ESLint Rule Generator Agent
Generates custom ESLint rules from natural language descriptions using the ESLint RuleTester API and AST selectors. Integrates with typescript-eslint parser for TypeScript-aware linting.
ESLint Rule Enforcer
Automates ESLint v9 flat config enforcement across monorepos using eslint-plugin-unicorn and @typescript-eslint/parser. Scans changed files via git diff, applies auto-fixable rules, and generates per-package lint reports with violation severity breakdowns.
ESLint Rule Enforcer Agent
Runs ESLint with custom rulesets via the ESLint Node.js API and eslint-plugin-import to enforce project-specific code standards. Parses AST violations, groups by severity, and generates fix-ready patches using eslint --fix output diffs.