API Integration
| Server | Language | Stars | Downloads |
|---|---|---|---|
| SIC Codes UK UK SIC code lookup, GICS/ICB mapping, and Companies House search. 731 codes, 5.6M companies. | TypeScript | - | - |
| sickslip-verify Verify the authenticity of a SickSlip doctor's note from your AI assistant. SickSlip is a U.S. asynchronous telehealth service operated by SickSlip P.A., reviewed and signed by Dr. Adam Z. Kawalek, MD (NPI 1326223306, board-certified internal medicine, 30+ states). Every note is QR-verifiable by the recipient employer. This MCP server exposes one tool — `verify_sickslip_note(code)` — that any MCP-compliant client can call to verify a SickSlip note's authenticity. Returns the issued date, absence window, state of physician licensure, and physician name + NPI. No PHI is exposed (no patient name, DOB, or condition). **Use cases:** - HR person verifying an employee's note from Claude Desktop - Manager confirming a sick-leave document mid-conversation - Patient confirming their own note is registered + valid - Employment attorneys researching workplace dispute facts **Links:** - SickSlip: https://www.sickslip.co - Physician bio + NPI: https://www.sickslip.co/about/dr-adam-kawalek - npm package (stdio variant): https://www.npmjs.com/package/sickslip-mcp - GitHub: https://github.com/akawalek/sickslip-mcp | — | - | - |
| SICONFI: Declaração Fiscal SICONFI: Declaração Fiscal, official-source lookup. Platform-hosted, pay per query with prepaid cred | — | - | - |
| Sicoob MCP Connect your Sicoob account to AI via Brazil's Open Finance: balances, statements, cards, investment | — | - | - |
| Sicredi MCP Connect your Sicredi account to AI via Brazil's Open Finance: balances, statements, cards, investmen | — | - | - |
| Sidereon GNSS positioning and astrodynamics: orbit propagation, passes, GNSS solves, and RINEX QC | — | - | - |
| sift Runs a command, keeps every byte on disk, returns only the lines that matter | Python | - | - |
| Sifthound Self-hosted, Tavily-compatible web search, extract, crawl and map tools for AI agents. | Python | - | - |
| SiftSum Private financial journal: receipts, recurring expenses, and cash flow with MCP tools. | — | - | - |
| Sighttrue Measured readings on open-source dependencies: health, end-of-life, model prices, incidents. | — | - | - |
| Siglume MCP Gateway Access Siglume API Store tools and external MCP Router servers. | — | - | - |
| @sigmacomputing/slack-mcp-server MCP server for interacting with Slack | TypeScript | - | - |
| Signadot MCP Server Connect to Signadot to manage ephemeral environments and route traffic to local services. | — | - | - |
| signal **The adaptive health-messaging engine for apps and agents — federally-sourced, audience-safe facts, lists & tips, keyless to try.** Call `lookup_health_fact` from any MCP client (Claude Desktop, Cursor, the OpenAI Agents SDK) with no API key and no signup, and get a CDC/NIH/USPSTF/SAMHSA-sourced fact, list, or tip with its source link. The full Signal API — sequenced cued-message streams over a 16,500+ library of federally-sourced facts, lists & tips that advance on each patient's response, each with a receptivity score + audience-safety verdict — is a free sandbox key away. Display-mode, no PHI. Not medical advice. Try it → https://uphealth.us/signal/try | — | - | - |
| SignalBrain Verifiable receipts for governed process changes; emit, validate, and gate trust | Python | - | - |
| Signalcrest Cross-source trend signals from 10 developer communities, scored every 30 minutes. | — | - | - |
| Signal Desk by LarryBuildsAI One-to-three-cent spend routing, lead research, token-risk, and agent-tool comparison preflights. | — | - | - |
| SignalEDI EDI parse, validate, send & inspect (X12/EDIFACT) from any MCP client. Demo without API key. | TypeScript | - | - |
| Signaliz B2B lead generation, email verification, company enrichment, and agentic GTM Ops. | TypeScript | - | - |
| Signal Lab Apify Data Tools Run Signal Lab Apify Actors for price tracking, keywords, RAG, transcripts, Reddit, jobs, and menus. | — | - | - |
| Signal Ledger Financial Intelligence Paid bilingual MCP tools for evidence-linked SEC filing risk and finance-author track records. | — | - | - |
| Signal Oracle Pay-per-call change-intelligence feeds for AI agents over x402 (deps, security, regs, tariffs) | — | - | - |
| SignalRaven LinkedIn buying-intent signals, intelligence reports and delivery settings for your workspace. | — | - | - |
| @signdocs-brasil/mcp-server Model Context Protocol (MCP) server for the SignDocs Brasil e-signature API — lets AI agents create signing sessions, manage envelopes, verify documents and more. Local stdio, remote HTTP, and AWS Lambda transports. | TypeScript | - | - |
| signet-eval Deterministic policy enforcement and MCP management for AI agent tool calls. | — | 2 | - |