"Guide to Reading and Writing Data with PostgreSQL" matching MCP connectors:

Social media analytics, video analysis, and competitor intel for any MCP-compatible AI agent.

Read-only MVR preflight for trust, permission, evidence gaps, and African market-entry readiness.

Savvly MCP: query fund data, model projections, and compare against alternative retirement products.

Scan and fix email auth (SPF, DMARC, DKIM, MX, blacklists, expiry) + DNS checks. Validated fixes.

SSRF-safe web intelligence: 32 paid x402 tools, 3 free tools, buyer prompt and guide.

Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting

Reference data for prediction markets: graded resolution clarity, cross-venue links, provenance.

Live exit costs by venue, depth concentration, and a sealed calls record that keeps its misses.

The GVRN Incorporation MCP is a public Model Context Protocol (MCP) server that lets AI agents — on any LLM provider — collect and submit company incorporation requests to GVRN on a user's behalf. Every submission is reviewed by GVRN's corporate secretarial team, who follow up with the user by email. All fields are optional, so an agent can submit early with whatever the user has provided and let a specialist fill in the gaps.

AIOProductOS: revenue, feedback, work and analytics on one customer record. 71 tools, 3 apps.

Intake desk for AI agents: bridges construction quotes to KIRA fair-price audit and EHN check.

Manage products, EU Digital Product Passports, operator parties, and GS1 EPCIS supply-chain events.

A complete color workflow over MCP: mix, convert, harmonize, measure, and remember palettes.

Hankookilbo (Korean daily) news metadata: titles, dates, sections, bylines, links, and excerpts.

Live multi-asset market data for AI agents with provenance, starter credits, x402, and examples.

Cello MCP server to launch and manage your User Referral and Partner program — for developers and growth teams.

AgentFeed: 47 tools — our own liquidation tape + tokenized-equity peg data, paid in USDC.

Enumerate and inspect PubFi capabilities, then execute an exact selected route.

Mocap, rehab biomechanics, threat intel, fleet vision. 21 MCP tools, 10 free. x402/USDC paid.

Connect your AI assistant to Signed and ask about your angel investing in plain English: how the portfolio is doing, what distributions came in this year, what’s sitting in the pitch queue. It's a view into the startups that you've invested in (or are thinking of investing in!)