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The CalcsConnect Partner API is not self-serve. Access is granted case by case, so we can understand what you are building and confirm CalcsConnect is a good fit before issuing credentials. Once you have access, you create and manage your own API keys in the Calcs.com developer portal.

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How to request access

Book an integration call or email the CalcsConnect team through the CalcsConnect product page. Include:
  • What you are building. A short description of the product, tool, or internal workflow that will consume the API.
  • Which calculations you need. For example, timber beam design to NDS, wind loads to ASCE 7, or PDF report generation.
  • Region and standards. The country and code editions you are targeting, such as IBC, NBCC, AS/NZS 1170, or Eurocode.
  • Expected call volume. A rough sense of daily or monthly calculation requests, so we can scope the right tier.

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What happens next

The CalcsConnect team reviews your use case and schedules an integration call. On that call we go through the endpoints relevant to your workflow, walk through authentication, and confirm the environment you will be working against. Developer portal access follows that conversation.

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Creating an API key

Once you have portal access, manage your keys at developer.calcs.com under /settings/api-keys. From there you can:
  • Create a key, with a description and an optional expiration date
  • View your active keys, when each was created, and when it expires
  • Roll a key, which issues a new value while keeping the same key ID
  • Delete a key, which revokes it straight away
Roll a key rather than deleting it when you are rotating credentials on a schedule or responding to a possible exposure. Deleting cannot be undone, and anything using that key loses access immediately.

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Authenticating your calls

The base URL is https://api.calcs.com. Send your key as a bearer token on every request:
A successful response lists the projects available to that key, which is the quickest way to confirm your setup works before building anything further.
Treat your API key as a credential. Keep it in an environment variable or a secret manager, call the API from your server rather than from a browser or mobile app, and keep it out of public repositories.

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Which plans include API access

CalcsConnect is a separate product from a standard Calcs.com subscription. It is not bundled with the Solo, Team, or Enterprise plans by default. Access and commercial terms are set as part of the integration agreement, so pricing and included call volume are confirmed during onboarding rather than published as a fixed tier.

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API and MCP access for engineers

If you are an engineer on a paid plan, you can request CalcsConnect access for your own account. CalcsConnect is free during the beta. One key covers both the API and the MCP. The MCP connects Calcs.com to an AI chat tool, so you use the same key whether you call the API directly or work through an AI assistant.

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How your key is delivered

Calcs.com sends your key only to the email address on your Calcs.com account. It arrives as a secure one-time link:
  1. Open the secure link you receive.
  2. Enter your account email address.
  3. Enter the one-time code sent to that email to reveal your key.
You do not need a 1Password account to open the link. The link expires after two weeks, so retrieve your key before then.
Keep your key private. It is tied to your Calcs.com account.
For setup, see the CalcsConnect API reference.