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Socialync

Developer Agreement (API & MCP)

Last Updated: June 10, 2026

This Developer Agreement (the "Agreement") governs your access to and use of the Socialync application programming interface, the Socialync Model Context Protocol (MCP) server, and any related developer tools, documentation, or credentials (together, the "API"). It is entered into between you ("Developer", "you") and Socialync LLC ("Socialync", "we", "us").

1. Acceptance and Relationship to the Terms of Service

By requesting, accepting, or using API credentials, or by calling the API, you agree to this Agreement. This Agreement supplements and incorporates our Terms of Service, Acceptable Use Policy, and Privacy Policy. If this Agreement conflicts with the Terms of Service with respect to the API, this Agreement controls for that subject. Capitalized terms not defined here have the meaning given in the Terms of Service.

2. Definitions

  • API Credentials: the API keys, client secrets, OAuth tokens, and MCP access tokens we issue to you or that an end user authorizes for your Application.
  • Application: any software, agent, integration, or service you build that calls the API, including an AI assistant connected through the MCP server.
  • End User: the Socialync account holder on whose behalf your Application acts.

3. Eligibility and Registration

You must register for API access and provide accurate information about you and your Application. You are responsible for keeping this information current. We may approve, deny, condition, or revoke API access at our discretion, including during any closed-beta or limited-availability period.

4. API Credentials and Token Security

  • API Credentials are confidential, are issued to you alone, and may not be shared, sold, sublicensed, or transferred.
  • You must store API Credentials securely, never embed them in client-side code or public repositories, and never log them in plaintext.
  • Each token is scoped to specific permissions and to a specific End User authorization. You may not use a token beyond its granted scope, attempt to escalate scope, or use a token issued for one End User to act for another.
  • You must honor End User authorization and revocation. When an End User disconnects your Application or revokes access, you must stop using the associated credentials immediately.
  • Compromised tokens. If any API Credential is lost, leaked, or compromised, you must notify us at support@socialync.io without undue delay and rotate the credential. We may immediately revoke any credential we believe is compromised, misused, or used in violation of this Agreement, without prior notice. You are responsible for all activity that occurs under your API Credentials until they are revoked.

5. Acceptable Use of the API

You may use the API only to build Applications that help an End User manage and publish their own content to their own connected accounts. You agree that you will not, and will not allow your Application or any End User to:

  • Use the API to create, schedule, or publish any content prohibited by Section 9 of the Terms of Service or by the Acceptable Use Policy, including non-consensual intimate imagery, CSAM, deepfakes of real people without consent, spam, or platform manipulation.
  • Publish content on behalf of an End User without that End User's authorization, or act outside the scope an End User has granted.
  • Bypass, disable, or circumvent the human-review requirement for AI-generated content described in Section 10.
  • Scrape, crawl, harvest, or bulk-export data from Socialync, or use the API to build a dataset, index, or cache except as needed to operate your Application for its End Users.
  • Use the API to build or improve a product or service that competes with Socialync, or to benchmark for a competing product.
  • Resell, redistribute, or provide the API as a standalone service, or expose raw Socialync API access to third parties as if it were your own API.
  • Exceed or evade rate limits, quotas, or access controls, or probe, scan, or test the vulnerability of the API or any Socialync system without our written permission.
  • Misrepresent your Application as endorsed by or affiliated with Socialync, or use our name or marks except to accurately state that your Application integrates with Socialync.
  • Use the API in violation of any connected platform's terms, developer policies, or rate limits.

6. Rate Limits and Quotas

The API is subject to rate limits and usage quotas that we publish in our developer documentation and may change. We may throttle, queue, or reject requests that exceed these limits or that we determine threaten the stability, security, or integrity of the Service or any connected platform. You must design your Application to handle rate-limit responses gracefully, including by backing off and retrying responsibly.

7. Versioning, Changes, and Deprecation

We may add, change, or remove API features over time. For backward-incompatible changes or deprecation of a stable API version, we will use commercially reasonable efforts to provide at least 30 days' advance notice through our developer documentation or by email to the contact associated with your API access, except where a shorter timeline is required for security, legal, or platform-driven reasons. We are not liable for changes a connected platform makes to its own API that affect your Application.

8. Suspension and Revocation

We may suspend or revoke your API access, any API Credential, or your Application's access to a specific End User account, immediately and without prior notice, if we reasonably believe that: you have violated this Agreement, the Terms of Service, or the Acceptable Use Policy; your Application poses a security, privacy, or safety risk; your usage threatens the Service or a connected platform; or suspension is required by law or by a connected platform. We operate account-level enforcement controls that, when triggered for an End User, also block API and MCP access acting on that End User's behalf. We may also suspend access during incident response. Where practical and lawful, we will tell you the reason and, for curable issues, a path to reinstatement.

9. End-User Data and Privacy

  • You may access and use End User data only to provide your Application to that End User, and only within the scope the End User authorized.
  • You must maintain your own privacy policy that accurately describes how your Application collects, uses, and shares data, and you must comply with all applicable privacy and data-protection laws, including the GDPR and CCPA/CPRA where they apply.
  • You must not sell End User data or use it for advertising, profiling, or model training that the End User has not authorized.
  • You must delete End User data when the End User revokes access, when your access is terminated, or when the data is no longer needed for the authorized purpose, except where retention is required by law.
  • Our handling of data in connection with the API is described in our Privacy Policy.

10. Human Review of AI-Generated Content

Content that is generated, drafted, or proposed by an AI agent, an MCP-connected service, or another automated system must be reviewed and explicitly approved by a human End User before it is scheduled or published to any connected platform, exactly as described in Section 8.3 of the Terms of Service. Your Application must not automate, script, or otherwise bypass this approval step. Fully autonomous, unattended publication of AI-generated content through the API or MCP server is not permitted.

11. Intellectual Property and Feedback

We retain all rights in the API, our documentation, and our marks. We grant you a limited, non-exclusive, non-transferable, revocable license to access and use the API solely to build and operate your Application in accordance with this Agreement. You retain rights in your Application. If you give us feedback or suggestions about the API, we may use them without restriction or obligation to you.

12. Disclaimer of Warranties

THE API IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS, WITHOUT WARRANTIES OF ANY KIND, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. We do not warrant that the API will be uninterrupted, secure, error-free, or that requests will be delivered to or accepted by any connected platform. We may impose limits, change behavior, or discontinue the API as described in this Agreement.

13. Limitation of Liability

The limitation of liability in Section 17 of the Terms of Service applies to your use of the API and is incorporated here by reference. To the maximum extent permitted by law, we are not liable for any indirect, incidental, special, consequential, or punitive damages, or for lost profits, data, or goodwill, arising out of or relating to the API.

14. Indemnification

You agree to indemnify, defend, and hold harmless Socialync and its officers, employees, and affiliates from any claims, damages, losses, liabilities, costs, and expenses (including reasonable attorneys' fees) arising out of or related to: your Application; your use of the API or API Credentials; content created, scheduled, or published through your Application; your violation of this Agreement, applicable law, or any connected platform's terms; and any claim brought by your End Users or by third parties relating to your Application.

15. Term and Termination

This Agreement applies for as long as you have API access. You may stop using the API and request deletion of your API Credentials at any time. We may terminate this Agreement or your API access as described in Section 8 or for convenience with reasonable notice. On termination, your license to the API ends, you must stop calling the API and destroy your API Credentials, and the sections that by their nature should survive (including Sections 9, 11, 12, 13, and 14) will survive.

16. Changes to this Agreement

We may update this Agreement to reflect changes to the API, our practices, or legal requirements. For material changes, we will provide notice through our developer documentation or by email. Your continued use of the API after the effective date constitutes acceptance of the updated Agreement.

17. Governing Law and Dispute Resolution

The governing law and dispute-resolution provisions in Section 20 of the Terms of Service, including the agreement to arbitrate and the class-action waiver, apply to this Agreement and are incorporated here by reference.

18. Contact

Questions about this Agreement or about API access can be sent to:

Developer support: support@socialync.io
Security and compromised credentials: support@socialync.io
Abuse and content takedown: safety@socialync.io