For AI builders, analysts and researchers
Every newsletter issue, readable by your AI agent
Inkling holds the issues of nearly 18,000 public newsletters, updated hourly. Read them in a web app, or connect Claude, Codex or any MCP client and let your agent search, list and read them.
Early access. Free and public newsletter content only.
One URL connects your agent
One URL connects your agent
Features
What Inkling does
One archive of public newsletters, for you and for your agent.
Search by newsletter name
Find a newsletter by its name and page through all of them in a table.
A newsletter, at a glance
Open a newsletter to see its details and its latest issue, nicely rendered.
Step back through every issue
Press the right arrow key for the older issue and the left for the newer one, all the way back.
Your agent can read it too
Connect Claude, Codex or any MCP client. Your agent searches newsletters, lists their issues and fetches full issues.
Freshness
Hourly
Synced from a corpus that follows public newsletters as they publish.
Updated every hour
New issues are added hourly, so what you and your agent read is current.
Example
--- title: "An example issue" newsletter: "Example Weekly" author: "Jane Doe" published_at: "2026-10-27T08:00:00+00:00" permalink_url: "https://example.com/p/..." body_word_count: 1840 ---
Issues as markdown
Each issue comes back as clean markdown with YAML frontmatter: title, newsletter, author, publication date, permalink and word counts.
How it works
From a newsletter name to the full text.
The same three steps in the web app and in your agent.
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1
Find the newsletterSearch by name. Inkling covers nearly 18,000 public newsletters.
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2
Open its issuesSee the latest issue straight away, and step back through every earlier one.
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3
Read, or let your agent readYour agent fetches any issue as markdown over MCP, with the author, date and permalink in the frontmatter.
Works where you work
Connect your AI agent.
Inkling has an MCP server at inklingdata.com/mcp. Log in once, and Claude, Codex or any MCP client can search newsletters, list their issues and fetch full issues.
Example prompt
Find three newsletters about retail investing, read each one's last five issues, and tell me what they agree on.
Who it is for
What people use it for
AI and agent builders
Give your agent a corpus of newsletters to search and read, without scraping feeds, storing archives or fixing broken parsers.
Analysts and researchers
Newsletters are where many niche experts publish. Follow a space by reading the archives of the writers in it, with your agent doing the reading.
Marketing, PR and content teams
See what the top newsletters in a category actually write about, in their own words, before you pitch or position.
What is included
The archive, honestly described.
- Newsletters
- nearly 18,000
- Issues
- nearly 2 million
- Back to
- 2000
Mostly Substack and similar public newsletters, kept up to date hourly. Free and public content only: paywalled posts appear as their free preview. We do not have every newsletter, and there is no full-text search across issue text yet.
The founder behind Inkling
Newsletters are where the experts write. Agents should be able to read them.
Inkling comes from the same company as Sputnik Intelligence, which follows newsletters and podcasts. Inkling takes the newsletter archive and makes it simple: a place to read, and a door for your agent.
Peter Van Dijck
Founder, Helpful Intelligence
Pricing
Plans by users and issues fetched
15-day free trial when access opens. Prices include VAT.
Solo
Regular price $99 $79 per month
For one person researching with an AI agent.
- 1 user
- 1,000 issues a month fetched by your AI agent
- The full web app: search, browse and read every issue
- All newsletters, back to 2000, updated hourly
- MCP server for Claude, Codex and any MCP client
Team
Most popular$199 per month
For a small team that shares a research workflow.
- Up to 5 users
- 10,000 issues a month fetched by your AI agents
- Everything in Solo
Business
$399 per month
For agent builders and teams with heavier use.
- Up to 20 users
- 50,000 issues a month fetched by your AI agents
- Everything in Team
Enterprise
More users or more issues a month than Business covers? Custom limits and terms.
FAQ
Common questions
What is Inkling?
Inkling is a collection of the issues of nearly 18,000 public newsletters (nearly 2 million issues, back to 2000, mostly Substack and similar newsletters), kept up to date hourly. You can read them in a web app, and your AI agent can read them over an MCP server.
Which newsletters are included?
Public newsletters, mostly on Substack and similar platforms. We do not have every newsletter that exists. Only free, public content is included: for paywalled posts, you get the free preview.
Can I search the text of every issue?
Not today. You search newsletters by name, open one, and read its issues. Your agent can list a newsletter's issues and fetch any issue in full as markdown.
What does my AI agent get?
Four tools: search newsletters by name, get one newsletter, list its issues, and fetch a full issue as markdown with YAML frontmatter (title, newsletter, author, date, permalink, word counts).
Can I sign up?
Not yet. Inkling is in early access and signups are closed. Request access and we will get in touch.
Are prices including VAT?
Yes. Prices are in US dollars, per month, and include VAT.
Give your AI agent every newsletter issue.
Inkling is in early access. Ask for access and we will get you in.