REST or MCP for social automation: keep human approval in the path

Answer first: choose REST for deterministic application workflows with a known schema, retries, and idempotency policy. Choose MCP when an interactive agent needs to discover a small, scoped tool catalog. In either path, begin read-only and require a person to approve the account, copy, media, link, time, and time zone before any external write.

REST or MCP?

REST and MCP automation decision

Need	Prefer REST	Prefer MCP
NeedRepeatable backend workflow	Prefer RESTTyped endpoint and explicit payload	Prefer MCPOnly if an agent must reason across tools
NeedInteractive assistant	Prefer RESTPossible but the client must know the contract	Prefer MCPDiscoverable tools and descriptions
NeedBulk or high-volume work	Prefer RESTBetter fit with controlled queues and retries	Prefer MCPAvoid broad autonomous batches
NeedHuman draft review	Prefer RESTCreate a draft, render review UI, then call schedule	Prefer MCPAsk for a draft, show it, then require explicit approval
NeedSecurity boundary	Prefer RESTOAuth or API key scopes and server authorization	Prefer MCPThe same scopes plus tool visibility constrained by them

Naasher provides both paths. The MCP worked example below connects to https://api.naasher.com/api/mcp over Streamable HTTP with a read-only key. Verify channels.list and posts.list, then add write access only when the workflow has an explicit review step. REST clients use the versioned contract under https://api.naasher.com/api/sdk/v1 and should follow the same scope and approval boundary.

We tested this path against Naasher's production environment on 22 August 2026. A narrowly scoped key authenticated successfully, the server negotiated MCP version 2025-11-25, and tools/list exposed only the two permitted read tools. That is the intended boundary: scopes control what the agent can discover, not merely what fails after it tries.

1. Create a narrowly scoped key

Open Settings → API keys, create a key, and choose its environment. For a first connection, grant only:

• channels:read to list connected social accounts.
• posts:read to list posts with supported filters.

Do not add posts:create, posts:schedule, or analytics:read simply because they are available. Give each integration the smallest scope set that completes its job, and use a separate key per client so one can be revoked without interrupting the others.

Naasher shows the key secret once. Store it in an environment variable or the client's secret manager, never in a configuration file that will be committed to Git.

2. Add the endpoint to your client

Naasher uses Streamable HTTP, the standard MCP transport that carries JSON-RPC messages through one HTTP endpoint. A generic client configuration looks like this:

{
  "mcpServers": {
    "naasher": {
      "type": "http",
      "url": "https://api.naasher.com/api/mcp",
      "headers": {
        "x-naasher-api-key": "<YOUR_KEY>"
      }
    }
  }
}

Replace the placeholder through your client's native secret mechanism instead of committing the key to a file. The server also accepts an Authorization: Bearer header. See the Naasher MCP reference for current setup and tool details.

3. Verify read access before write access

Ask the agent:

List the available tools, then show my connected channels and recent posts. Do not create, change, schedule, or publish anything.

With the read-only key, tools/list should expose:

• channels.list
• posts.list

If an unexpected write tool appears, stop the test, revoke the key, and create one with narrower scopes. If a required tool is missing, adjust that key in Naasher instead of sharing a broader key from another integration.

4. Add write access behind a review gate

When the agent needs to draft content, add posts:create. Add posts:schedule only when it must set a publishing time. Have it create a draft first and show the text, channels, time, and time zone before scheduling.

A safer request is:

Create an English draft for this LinkedIn announcement and show it with a suggested time. Do not schedule it until I explicitly approve.

Prompt wording is not a security boundary; scopes are. Keep research and reporting on a read-only key, and use a separate, short-lived key for work that genuinely needs write access.

Production checklist

• The key belongs to one client and is absent from repositories and messages.
• tools/list exposes only the tools the workflow needs.
• The intended channels, time, and time zone are explicit before scheduling.
• A person reviews copy, media, and links before publication.
• Someone owns key rotation and revocation when the integration is retired.
• Every external write has an application-level idempotency and uncertain-outcome policy; prompt wording is not that policy.
• The person approving sees the remote account identity, final copy, media, link, time, and time zone.

MCP access is included with Team and Agency plans. See pricing in Arabic, or continue with the LinkedIn connection guide if that is your next channel.