---
title: "Whether POST /domains would accept this name, and the refusal it would give if not."
method: GET
path: "/domains/check"
tags: ["domains"]
---

# Whether POST /domains would accept this name, and the refusal it would give if not.

`GET /domains/check`

## Request

- Base URL: `https://api.agentisend.com`
- URL: `https://api.agentisend.com/domains/check`
- Auth: HTTP bearer

Creates nothing.

## Query parameters

- `name` string, required: The domain to check, as you would send it to POST /domains.

## Response `200`

Success

- GetDomainsCheckReply
  - `name` string, required
  - `can_add` boolean, required
  - `blocklist` 'listed' | 'clean' | 'unknown', required
  - `problems` object[], required
    - `code` string, required
    - `message` string, required
    - `fix` string, required

## Other responses

- `400`: The request is malformed or a field failed validation. Codes: validation_error, invalid_idempotency_key, invalid_cursor, plan_not_purchasable, stripe_signature_invalid, support_upload_rejected, sign_in_check_required.
- `401`: No usable credential was sent. Codes: missing_api_key, session_required, mfa_required.
- `403`: The credential may not do this, or the account or key is stopped. Codes: sending_domain_blocked, young_domain_held, domain_sending_disabled, domain_not_verified, onboarding_recipient_not_a_member, onboarding_sender_unavailable, account_suspended, account_sandboxed, human_action_required, csrf_origin_rejected, charge_not_this_account, invalid_api_key, restricted_api_key, insufficient_role, invite_email_mismatch, domain_scope_violation, dedicated_ip_assigned_by_us, approval_required, staff_review_required, trust_paused, kill_switch_active.
- `429`: A rate, quota or ramp ceiling was reached. Codes: onboarding_daily_cap_reached, trust_throttled, invite_limit_reached, rate_ceiling_exceeded, daily_quota_exceeded, monthly_quota_exceeded, rate_limit_exceeded, support_rate_limited.
- `500`: Something failed on our side. Codes: internal_server_error.

---

[API](https://skmtc.dev/agentisend/apis/agentisend-api.md) · [All operations](https://skmtc.dev/agentisend/apis/agentisend-api/llms.txt) · [OpenAPI document](https://skmtc.dev/agentisend/apis/agentisend-api/revisions/3066dda62a56?raw)