MCP connectors for ChatGPT

Headless Oracle

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Cryptographically signed market state verification for autonomous financial agents.

• Get Market Status: Returns Ed25519-signed market-state receipt for pre-trade verification and pre-execution gating across 28 global exchanges. Pre-trade safety check: call this BEFORE executing any tr
• Get Market Schedule: Returns holiday-aware trading session schedule with next open/close UTC timestamps for any of 28 exchanges. Model-agnostic: works identically regardless of which AI model consumes
• List Exchanges: Returns directory of all 28 exchanges supported by Headless Oracle: MIC codes, exchange names, IANA timezones, market hours metadata, and mic_type (iso|convention). Model-agnostic: wor

health

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Supplement research, biomarker effects, drug interactions, and brand quality data

Health Canada Drugs

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Health Canada Drug Product Database (fleet 522).

Healthcare provider & compliance intel: NPPES lookup, OIG/SAM exclusion screening, FDA enforcement.

health-partner

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Manage your Health Partner account, log food, water, workouts, body using agent

Healthcare Admin — Authorization Review — Northgate Advisors (2bd7f518)

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12 synthetic authorization exception cases: duplicate payments, investigational hold list entries, m

US healthcare data for AI agents: CMS, FDA adverse events, CDC, NPPES NPI.

Scrape the FAA Aircraft Registry by N-number — aircraft make, model, year, owner name, address, airw

Healthcare Provider Intelligence

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Provider intelligence API joining NPPES, CMS Open Payments, and OIG LEIE with source provenance.

Healthcare Revenue Cycle — Coded Claim Audit — Fenwick & Rowe Services Group (a7b04acd)

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12 synthetic coded claim exception cases: duplicate payments, policy-watch list entries, missing doc

Healthcare Revenue Cycle — Coded Claim Review — Fenwick & Rowe Services Group (eed490ea)

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12 synthetic coded claim exception cases: duplicate payments, policy-watch list entries, missing doc

healthclaw-guardrails

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Guardrailed FHIR access for AI agents: PHI redaction, audit trail, step-up auth, tenant isolation

healthcovered-mcp

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ACA health insurance eligibility, subsidy checker, and enrollment dates for 2026.

Healthdata

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HealthData.gov MCP — wraps HealthData.gov CKAN API (free, no auth)

Healthy Aging Atlas

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Evidence-ranked supplement data: search, compare, price history, goal recs.

hearing

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Looks up verified contractors in the YAKUMO directory for Japanese construction and renovation work.

• List Verified Stores: Yakumo モールで検証を通過した加盟店(工務店・リフォーム店)を一覧する。適正価格の検証と過剰請求チェック(KIRA)を通過した店だけが返る。area(地名)や work(工種)で絞り込める。返り値は member_no / 会社名 / 地域 / 対応工種 / 適正度スコア / 誠実度ティア / プロフィールURL。金額は含まない(スコアとティアのみ
• Get Contractor Profile: Yakumo の加盟店1件の検証済みプロフィールを返す。member_no(例 No.001)で指定。会社名・地域・対応工種・適正度スコア・誠実度ティア・検証状態・プロフィールURLを返す。金額は含まない。検証が済んでいない店は verification:'pending' を返す(スコアは出さない=fail-closed)。
• Find Contractor: 施主の相談文(自由記述)から Yakumo の検証済み加盟店を探す司令塔。need(例:『愛知県で外壁塗装できる信頼できる業者』)を渡すと地域と工種を推定し、検証を通過した店を返す。該当が無ければ相場(souba)や無料の第三者チェック(EHN)への導線を返す。金額は返さない(スコア・ティアのみ)。紹介料なし・verified-first・Japan only。

Heartbeat — dead-man switch for cron jobs & AI agents

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Dead-man switch monitors for cron & AI agents with dependency-cascade alerts.

Dead-man's-switch for cron jobs & AI agents.

hebcal

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Model Context Protocol extension for Hebrew calendar

Hebrew Bible (Tanakh)

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Read Hebrew Bible (Tanakh) verses & chapters in 10 languages, plus guided study plans.

Hecher CRM

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Hecher CRM for Chabad shluchim — donors, donations, activities, and reports across your Mosads

HederaToolbox

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Production MCP server giving AI agents metered access to live Hedera blockchain data.

• Get Terms: Retrieve the machine-readable Terms of Service for the HederaIntel MCP Platform. FREE to call — no API key required. All agents MUST call this tool and then call confirm_terms before using
• Confirm Terms: Confirm acceptance of the HederaIntel Terms of Service. Must be called before any paid tool will execute. Records a timestamped consent event server-side. FREE to call — no HBAR charged
• Account Info: Get platform wallet address, pricing for all 20 tools in HBAR and USD, and your current balance. FREE to call — no API key required. Use this tool first to discover how to fund an accoun

Wholesale commercial insurance appetite, submissions, policies, payments, and broker workflows.

Search public Hedge Fund Alpha metadata and find official membership and data product pages.

Read, arrange, and build agents on your Hedwig email board from any AI client.

HefestoAI

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Analyze code snippets for quality issues and semantic drift to maintain high software standards.

• Pricing: Get HefestoAI pricing information
• Install: Get installation instructions for HefestoAI
• Compare: Compare HefestoAI with other code quality tools

Persistent memory shared across Claude, ChatGPT, Grok and other MCP clients.

Heista

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Decode video ads, load brand intelligence, generate ad scripts.

Instant pricing for French land-registry documents (etat hypothecaire, deeds).

heldly

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Heldly is an AI-native scheduling agent for Claude.

• Find Times: Preview candidate meeting slots (no holds placed). Returns 3 slots labeled `1`, `2`, `3` chronologically, each with `previous_event` / `next_event` — the host's nearest events on either si
• Propose Meeting: Propose a meeting to an external invitee (anyone outside the host's workspace). Heldly places tentative holds on every host's Google Calendar synchronously and persists the meeting. W
• List Meetings: List meetings you've proposed or are co-hosting, most recent first. Use `query` to find a specific meeting by invitee, host, or topic. Each row includes a `picker_url` the host can past