Coresignal▌
by coresignal-com
Coresignal: Access comprehensive B2B data on companies, employees and job postings to power your LLMs and AI workflows.
Access comprehensive B2B data on companies, employees, and job postings for your LLMs and AI workflows.
Both formats append explainx.ai attribution and the canonical URL for this MCP server listing.
best for
- / Sales teams building prospect lists
- / Recruiters sourcing candidates and market intelligence
- / Market researchers analyzing company landscapes
- / Business developers identifying partnership opportunities
capabilities
- / Query company information from 74M+ records
- / Search employee profiles across 823M+ records
- / Access job posting data from 399M+ listings
- / Filter companies by location, industry, and size
- / Retrieve employee details and work history
- / Search current job openings and requirements
what it does
Provides access to Coresignal's B2B database containing 74M+ company records, 823M+ employee profiles, and 399M+ job postings through API calls.
about
Coresignal is an official MCP server published by coresignal-com that provides AI assistants with tools and capabilities via the Model Context Protocol. Coresignal: Access comprehensive B2B data on companies, employees and job postings to power your LLMs and AI workflows. It is categorized under developer tools, analytics data. This server exposes 3 tools that AI clients can invoke during conversations and coding sessions.
how to install
You can install Coresignal in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server supports remote connections over HTTP, so no local installation is required.
license
MIT
Coresignal is released under the MIT license. This is a permissive open-source license, meaning you can freely use, modify, and distribute the software.
readme
Coresignal: Access comprehensive B2B data on companies, employees and job postings to power your LLMs and AI workflows.
TL;DR: Provides access to Coresignal's B2B database containing 74M+ company records, 823M+ employee profiles, and 399M+ job postings through API calls.
What it does
- Query company information from 74M+ records
- Search employee profiles across 823M+ records
- Access job posting data from 399M+ listings
- Filter companies by location, industry, and size
- Retrieve employee details and work history
- Search current job openings and requirements
Best for
- Sales teams building prospect lists
- Recruiters sourcing candidates and market intelligence
- Market researchers analyzing company landscapes
- Business developers identifying partnership opportunities
Highlights
- Remote server — zero local setup
- Massive dataset with 1B+ records total
FAQ
- What is the Coresignal MCP server?
- Coresignal is a Model Context Protocol (MCP) server profile on explainx.ai. MCP lets AI hosts (e.g. Claude Desktop, Cursor) call tools and resources through a standard interface; this page summarizes categories, install hints, and community ratings.
- How do MCP servers relate to agent skills?
- Skills are reusable instruction packages (often SKILL.md); MCP servers expose live capabilities. Teams frequently combine both—skills for workflows, MCP for APIs and data. See explainx.ai/skills and explainx.ai/mcp-servers for parallel directories.
- How are reviews shown for Coresignal?
- This profile displays 53 aggregated ratings (sample rows for discoverability plus signed-in user reviews). Average score is about 4.6 out of 5—verify behavior in your own environment before production use.
Use Cases▌
Extended AI Capabilities
Add new capabilities to Claude beyond text generation
Example
Access external data sources, execute code, interact with tools and services
Transform Claude from chatbot to action-taking agent
Context Enhancement
Provide Claude with access to relevant context and data
Example
Load project documentation, access knowledge bases, query databases
Get more accurate, context-aware responses
Workflow Automation
Automate multi-step workflows combining AI and external tools
Example
Research → Summarize → Create document → Send notification
Complete complex tasks end-to-end without manual steps
Implementation Guide▌
Prerequisites
- ›Claude Desktop 0.7.0+ or Cursor IDE with MCP support
- ›Basic understanding of MCP architecture and capabilities
- ›Access credentials for integrated services (if required)
- ›Willingness to experiment and iterate on configuration
Time Estimate
15-60 minutes depending on server complexity
Installation Steps
- 1.Install MCP server: npm install -g [package-name] or via GitHub
- 2.Add server configuration to ~/.claude/mcp.json
- 3.Provide required credentials and configuration
- 4.Restart Claude Desktop to load new server
- 5.Test basic functionality with simple prompts
- 6.Explore capabilities and experiment with use cases
- 7.Document successful patterns for reuse
Troubleshooting
- ⚠MCP server not loading: Check config syntax, verify installation
- ⚠Connection errors: Check network, firewall, credentials
- ⚠Feature not working: Read server docs, check required parameters
- ⚠Performance issues: Monitor resource usage, check for network latency
- ⚠Conflicts with other servers: Check port assignments, namespace collisions
Best Practices▌
✓ Do
- +Read server documentation thoroughly before setup
- +Start with simple use cases to validate functionality
- +Test in non-production environment first
- +Monitor resource usage and performance
- +Keep servers updated for bug fixes and new features
- +Document configuration for team members
- +Use environment variables for sensitive configuration
✗ Don't
- −Don't grant overly permissive access to MCP servers
- −Don't skip reading security considerations in docs
- −Don't expose sensitive data without proper controls
- −Don't run untrusted MCP servers without code review
- −Don't ignore error messages—investigate root cause
💡 Pro Tips
- ★Combine multiple MCP servers for powerful workflows
- ★Create custom MCP servers for your specific needs
- ★Share successful configurations with team
- ★Use MCP inspector for debugging
- ★Join MCP community for tips and troubleshooting
Technical Details▌
Architecture
Model Context Protocol standardizes how AI hosts (Claude, Cursor) communicate with external tools and data sources through server implementations.
Protocols
- Model Context Protocol (MCP)
- JSON-RPC 2.0
- stdio or HTTP transport
Compatibility
- Claude Desktop
- Cursor IDE
- Custom MCP clients
When to Use This▌
✓ Use When
Use when you need Claude to access external data, execute actions, or integrate with tools. Best for extending AI capabilities beyond conversation.
✗ Avoid When
Avoid when native integrations exist (use official APIs directly), for real-time critical systems, or when security/compliance requires zero external dependencies.
Integration▌
- →Tool composition: Chain multiple MCP tools in workflows
- →Context augmentation: Provide AI with relevant external data
- →Action delegation: Let AI execute tasks on external systems
- →Bidirectional sync: Keep AI context and external systems in sync
Discussion
Product Hunt–style comments (not star reviews)- No comments yet — start the thread.
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Ratings
4.6★★★★★53 reviews- ★★★★★Pratham Ware· Dec 20, 2024
According to our notes, Coresignal benefits from clear Model Context Protocol framing — fewer ambiguous “AI plugin” claims.
- ★★★★★Anaya Ghosh· Dec 16, 2024
Coresignal reduced integration guesswork — categories and install configs on the listing matched the upstream repo.
- ★★★★★Chen Shah· Dec 8, 2024
Coresignal is among the better-indexed MCP projects we tried; the explainx.ai summary tracks the official description.
- ★★★★★Noor Ramirez· Dec 4, 2024
Coresignal has been reliable for tool-calling workflows; the MCP profile page is a good permalink for internal docs.
- ★★★★★Noor Abbas· Dec 4, 2024
Coresignal is a well-scoped MCP server in the explainx.ai directory — install snippets and categories matched our Claude Code setup.
- ★★★★★Noor Diallo· Nov 27, 2024
Strong directory entry: Coresignal surfaces stars and publisher context so we could sanity-check maintenance before adopting.
- ★★★★★Chen Sharma· Nov 23, 2024
Useful MCP listing: Coresignal is the kind of server we cite when onboarding engineers to host + tool permissions.
- ★★★★★William Dixit· Nov 3, 2024
According to our notes, Coresignal benefits from clear Model Context Protocol framing — fewer ambiguous “AI plugin” claims.
- ★★★★★Anaya Mehta· Nov 3, 2024
We wired Coresignal into a staging workspace; the listing’s GitHub and npm pointers saved time versus hunting across READMEs.
- ★★★★★Sophia Malhotra· Oct 22, 2024
Coresignal has been reliable for tool-calling workflows; the MCP profile page is a good permalink for internal docs.
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