MCP servers for ChatGPT

Gmail, Outlook, iCloud, Fastmail and any IMAP mailbox for your agent. Scoped OAuth, approved sends.

Verify a SickSlip doctor's note by Document ID; states served, pricing, physician NPI. Read-only.

Connect an agent to Sidequest’s hosted job exchange to hire work, find work and settle on Monad.

Private financial journal: receipts, recurring expenses, and cash flow with MCP tools.

SigB (Signal Bureau): maintained, source-traced record of entities and events in your named domain.

25 sales leads with a public funding, hiring or tech signal, source link and draft message each.

330 production AI-agent services for data, validation, AI, crypto, and x402 pay-per-use.

Search Signed's public angel investor directory by sector, check size, or keyword. No login needed.

AI agents that watch DeFi positions: read a wallet report, draft agents for the owner to sign.

AI-writing detection (EN/ES) that shows the evidence: named tells, hidden characters, citations.

SigRank benchmark MCP: cascade metrics, leaderboard, operator profiles, simulation, diagnostics.

Catalog, prices, items, compliance and Siigo data by country, live for AI agents.

Choose files for an agent handoff using filename decisions. No file contents or credentials.

Semiconductor fabs, published forecasts and their restatements, each row naming its publisher.

Compares the provided data of a person in Mexico (CURP, name, birth, address) and returns the simila

Firm SGD quotes and delivery in Singapore for office and IT supplies, ink, toner and event print

SINTEGRA: ES, official-source lookup. Platform-hosted, pay per query with prepaid credit.

SIP/VoIP/telecom grounding for AI agents: vendor docs, RFCs, STIR/SHAKEN, traces, configs.

SipHash-4-8 hex length, input discarded

Pre-spend firewall for AI agents. Approves, blocks, flags transactions against policy rules.

Check public pages for SEO tags, AI crawler rules, AI citation signals and landing page conversion.