Nylas

Nylas API

The Nylas v3 REST API provides programmatic access to email, calendar, contacts, meeting notetaking, scheduling, authentication and administration across Google, Microsoft, Exchange, iCloud, Yahoo and any IMAP provider. Resources are scoped to a grant, which represents one authenticated mailbox and calendar. The entries below are facets of this single contract.

GitHub OpenAPI

Documentation

📖
Documentation
https://developer.nylas.com/docs/
📖
APIReference
https://developer.nylas.com/docs/reference/api/
📖
GettingStarted
https://developer.nylas.com/docs/v3/getting-started/
📖
Authentication
https://developer.nylas.com/docs/v3/auth/
📖
RateLimits
https://developer.nylas.com/docs/dev-guide/platform/rate-limits/

Specifications

⚙
OpenAPI
https://developer.nylas.com/_spec-files/nylas-api.yaml

Other Resources

🔗
ErrorCodes
https://developer.nylas.com/docs/api/errors/
🔗
Pricing
https://www.nylas.com/pricing/
🔗
Signup
https://dashboard-v3.nylas.com/register
🔗
StatusPage
https://status.nylas.com/
🔗
SDKs
https://github.com/nylas/nylas-nodejs
🔗
SDKs
https://github.com/nylas/nylas-python
🔗
SDKs
https://github.com/nylas/nylas-ruby
🔗
SDKs
https://github.com/nylas/nylas-java
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/nylas/refs/heads/main/apis.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/nylas-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

nylas-api.yaml Raw ↑