How to Connect Eight to an AI Agent
Auth setup
1. Eight Developer Portalでアプリ登録. 2. OAuth認証フロー. 3. Authorization: Bearer {access_token}.
Key facts
| Base URL | https://api.8card.net/v1/ |
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| API version | v1 |
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| Auth | OAuth 2.0. Sansan提供の名刺管理個人向けサービス. Developer登録でアプリ作成. |
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| Token URL | https://api.8card.net/oauth/token |
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| Scopes | read_cards, read_profile |
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| Request body | application/json |
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| Pagination | offset + limit. |
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| Rate limit | Not documented. Recommended: 30 req/min. |
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| Error format | JSON: {"error":"...","error_description":"..."} |
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Key endpoints
| Method | Path | Description |
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GET | /cards | List business cards (名刺一覧) |
GET | /cards/{id} | Get card details |
GET | /me | Get authenticated user profile |
Quickstart
GET /v1/cards?limit=20
Authorization: Bearer {access_token}
Response: {"cards":[{"id":"...","company_name":"...","person_name":"...","email":"...",...}]}
Agent pitfalls & tips
- Sansan提供の個人向け名刺管理 — Sansanは法人向け.
- 名刺データはOCR + 手入力で精度が高い.
- 個人の名刺データにPII含む — APPI準拠の取扱必須.
- APIは読み取り専用が中心 — 名刺の追加はアプリ経由.
- Sansan APIとは別系統 — 認証もエンドポイントも異なる.
Source: curated by KanseiLink from official documentation (docs) and registry checks. Last reviewed: 2026-04-07. Specs change — verify against the official docs before production use.
Frequently Asked Questions
What is Eight's AEO score?
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Eight has an AEO score of 0.80 and is rated A (Functional agent integration). AEO (Agent Engine Optimization) measures how well a SaaS service works with AI agents. Scores range from 0.00 to 1.00, with grades from AAA (best) to D (not agent-ready).
Is Eight AI-agent-ready?
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Eight is currently connectable for AI agent use. API access is available but no dedicated MCP server has been published yet. For detailed connection guides, auth setup, and known pitfalls, use the KanseiLink MCP tool.
How does Eight compare to other CRM & Sales services?
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In the CRM & Sales category, Eight is rated A. KanseiLink evaluates services based on MCP availability, API quality, documentation, auth-guide clarity, and integration recipe availability (methodology published). Visit the full rankings at kansei-link.com to see how Eight compares.
How can I integrate Eight with an AI agent?
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The fastest way to integrate Eight with an AI agent is through KanseiLink MCP. Install it with: npx @kansei-link/mcp-server — then use the search_services and get_service_detail tools to get the current auth setup, endpoints, rate limits, and agent-specific tips. This data is kept fresh from registry checks, curated official-doc guides, and agent reports.
How do I authenticate with Eight?
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OAuth 2.0. Sansan提供の名刺管理個人向けサービス. Developer登録でアプリ作成. Setup: 1. Eight Developer Portalでアプリ登録. 2. OAuth認証フロー. 3. Authorization: Bearer {access_token}.
What are Eight's API rate limits?
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Not documented. Recommended: 30 req/min.