For builders

Your voice, available to every agent you use

Prospel already knows how you write and what has actually happened on your journey. The MCP server and REST API let the AI tools you work in use that, and drop finished posts into your Prospel drafts or queue.

Included on every paid plan. Create a key under Account → API & MCP.

Write where you work

Ask your coding agent to turn today's commit into a post. It reads your voice first, then saves a draft for you to review.

Script your queue

Schedule posts from a CI job, a spreadsheet or a cron. Plain JSON over HTTPS.

Same guardrails

Tags of other accounts are removed at publish, and your voice comes with the rule to tell only true stories.

1. Create a key

In Prospel, open Account, name a key and copy it. Keys start with psk_, are shown once, and can be revoked at any time. You can have five.

2. Connect over MCP

Server URL: https://www.prospel.app/api/mcp. It uses the Streamable HTTP transport and authenticates with your key as a bearer token, so any MCP client that can send an Authorization header works.

Claude Code

claude mcp add --transport http prospel https://www.prospel.app/api/mcp \
  --header "Authorization: Bearer psk_your_key"

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "prospel": {
      "url": "https://www.prospel.app/api/mcp",
      "headers": { "Authorization": "Bearer psk_your_key" }
    }
  }
}

Then try: "Read my Prospel voice and draft an X post about what we shipped today. Save it as a draft."

prospel_get_voice	Your about, audience, style rules, example posts, pillars and true stories for X or LinkedIn
prospel_create_post	Save a draft, or schedule it straight into your queue
prospel_update_post	Edit, schedule or unschedule a draft or queued post
prospel_list_posts / prospel_get_post	Read drafts, the queue and published posts with their metrics
prospel_delete_post	Remove a draft or queued post (published posts are left alone)
prospel_add_story	Add a true story to your story bank
prospel_get_schedule	Posting slots, timezone, daily limits and what's coming up
prospel_get_analytics	Totals, top posts and follower change for the last N days
prospel_whoami	Which accounts are connected

3. Or call the REST API

Base URL: https://www.prospel.app/api/v1. Send JSON, get { data } back, or { error, message } with a matching HTTP status.

curl -X POST https://www.prospel.app/api/v1/posts \
  -H "Authorization: Bearer psk_your_key" \
  -H "Content-Type: application/json" \
  -d '{"platform":"x","content":"Shipped: ...","scheduled_for":"2026-11-02T15:30:00-05:00"}'

GET /me	Connected accounts and timezone
GET /posts?status=&platform=&limit=	status: draft, scheduled, published, failed or any
POST /posts	{ content, platform?, scheduled_for?, image_url? }
GET /posts/{id}	One post
PATCH /posts/{id}	{ content?, scheduled_for? (null = back to drafts), image_url? }
DELETE /posts/{id}	Drafts and scheduled posts only
GET /voice?platform=	Voice, examples and story bank
POST /stories	{ title, details, kind?, when? }
GET /schedule	Slots and the next 30 queued posts
GET /analytics?days=&platform=	Published totals, top 5 posts, follower change

Limits and rules

60 requests a minute per key, and up to 100 new posts a day through the API.
Scheduled times must be 2 minutes to 120 days ahead, as ISO 8601 with a timezone.
X posts follow your account tier (280 characters on a free X account); LinkedIn posts up to 3,000 characters.
Posts created through the API publish through the same queue as everything else, so your daily limits and pauses still apply.
Published posts can't be edited or deleted through the API.
An active Prospel subscription is required.