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contactapi

contactapi

by kozmos-tech
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

contactapi

An open-source API to save contacts. Send a POST with an email and any other JSON fields you want, and they get saved as-is. Manage them with simple CRUD.

Built with Hono and deployed on Vercel.

API overview

The base URL is https://contactapi.dev and every request carries your API key as a Bearer token:

Authorization: Bearer YOUR_KEY

Method

Path

Key

Description

POST

/v1/contacts

secret or publishable

Create (or upsert) a contact by email

GET

/v1/contacts

secret

List contacts, paginated

GET

/v1/contacts/:id

secret

Fetch a single contact

PATCH

/v1/contacts/:id

secret

Update a contact

DELETE

/v1/contacts/:id

secret

Delete a contact

Contacts are keyed by email — creating one whose email already exists updates it in place rather than duplicating it. Full reference lives on the landing page and in /llms.txt.

There are two kinds of key:

  • ck_secret_… — secret key, for your backend. Full access to every endpoint.

  • ck_pub_… — publishable key, for the browser. Can only create contacts and is locked to your domains.

Related MCP server: MCP Google Workspace

MCP server

AI clients (Claude Desktop, claude.ai custom connectors, Cursor, the MCP Inspector) can manage your contacts through an MCP server at:

https://contactapi.dev/mcp

Auth is OAuth 2.1 with dynamic client registration — point a client at the URL and it discovers the authorization server, registers itself, and sends you to log in and approve access; no API key to copy. The server exposes five tools that mirror the REST API: list_contacts, get_contact, create_contact (upsert-by-email), update_contact, and delete_contact. Everything is scoped to the account you log in as.

The OAuth provider is Better Auth's mcp plugin (src/auth.ts); the tools and endpoint wiring live in src/mcp/server.ts and src/index.ts.

Development

Prerequisites: Vercel CLI installed globally.

npm install
vc dev
open http://localhost:3000

Build

npm install
vc build

Deploy

npm install
vc deploy

License

MIT

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityInactive
ResponsivenessNo issues

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