domainee-dev Free tools API

Keyless diagnostic lookups. No Authorization header required.

Operations 18

GET /v1/tools/ssl-check Returns TLS certificate details for any public hostname: subject, issuer… #
GET /v1/tools/dns-record-lookup Look up DNS records for any hostname. #
GET /v1/tools/whois-lookup Modern RDAP-backed WHOIS lookup. #
GET /v1/tools/cname-lookup Resolve a hostname's CNAME chain. #
GET /v1/tools/dns-provider-lookup Fingerprint the DNS provider serving a domain from its public NS records. #
GET /v1/tools/domain-connect-checker Check whether a domain's DNS provider implements the Domain Connect protocol… #
GET /v1/tools/http-header-checker Fetch a URL and return its response headers + a security grade based on HSTS… #
GET /v1/tools/dns-propagation-checker Query the same hostname against ~10 public resolvers across the world… #
GET /v1/tools/redirect-checker Follow a URL's redirect chain and return every hop with status code, response… #
GET /v1/tools/spf-record-checker Look up the SPF record for a domain, validate syntax, and count void/total DNS… #
GET /v1/tools/domain-age-checker RDAP-backed lookup that returns a domain's registration date, age in days +… #
GET /v1/tools/subdomain-finder Enumerate subdomains for a target domain by querying Certificate Transparency… #
GET /v1/tools/reverse-ip-lookup Resolve PTR (reverse DNS) records for an IP address, and list other domains… #
GET /v1/tools/dmarc-record-checker Look up the DMARC record at _dmarc., parse the policy (`p`), subdomain policy… #
GET /v1/tools/txt-record-lookup Fetch all TXT records on a domain and classify them: SPF, DKIM, DMARC, BIMI… #
GET /v1/tools/website-status-checker Issue a HEAD/GET to a URL and report whether it's up, the HTTP status, response… #
GET /v1/tools/dkim-record-checker Look up the DKIM record at ._domainkey., parse the public key, key type… #
GET /v1/tools/domain-availability-checker Check availability of a name across one or more TLDs. Uses DNS + RDAP fallback. #

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/domainee-dev:domainee-dev-free-tools-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 form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

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

OpenAPI Specification

domainee-dev-free-tools-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Domainee Free tools API
  version: 1.0.0
  summary: Custom domains, domain registration, and DNS diagnostics for SaaS products.
  description: 'Domainee lets your product attach your customers'' own domains to their accounts:

    one call to connect a hostname, automatic SSL issuance and renewal, DNS health

    monitoring, webhooks, and domain registration across 500+ TLDs.


    ## Authentication


    Every `/v1` endpoint except `/v1/tools/*` takes a Bearer token in the

    `Authorization` header. Two kinds work interchangeably:


    - **API keys** (`sk_live_…`), created at https://domainee.dev/developers

    - **OAuth access tokens** (`dmn_oat_…`), issued by the flow described in

    the `/.well-known/oauth-authorization-server` document.


    Both are workspace-scoped: a token only ever sees its own workspace''s data.


    ## Rate limits


    Authenticated endpoints allow 60 requests per minute per key and answer `429`

    with `{"error":"rate_limited"}` beyond that. The free tools are limited per IP

    at 30/minute and 500/day.


    ## Idempotency


    Send an `Idempotency-Key` header on any POST to make a retry safe: the first

    response for a given key is replayed instead of performing the work twice.


    ## Errors


    Failures return the same envelope at every status code:

    `{ "error": "not_found", "message": "Domain not found" }`.


    Full guides: https://domainee.dev/docs. Machine-readable index: https://domainee.dev/llms.txt.'
  termsOfService: https://domainee.dev/terms
  contact:
    name: Domainee support
    email: hello@domainee.dev
    url: https://domainee.dev/contact
servers:
- url: https://api.domainee.dev
  description: Production
security:
- bearerAuth: []
tags:


# --- truncated at 32 KB (37 KB total) ---
# Full source: https://artifacts.apis.io/domainee-dev/openapi/domainee-dev-free-tools-api-openapi.yml