Add Linq adapter for iMessage, SMS, and RCS by haydenbleasel · Pull Request #196 · vercel/chat

haydenbleasel · 2026-03-07T22:28:09Z

Summary

Add @chat-adapter/linq adapter for iMessage, SMS, and RCS messaging via the Linq Partner API v3
Full adapter implementation: post/edit/delete messages, file uploads, reactions, typing indicators, DMs, message history, thread listing
Webhook handling with HMAC-SHA256 signature verification and timestamp tolerance
OpenAPI-generated types from the Linq v3 spec (lib/linq/linq-api-v3.yaml)
Plain text format converter that strips markdown and renders tables as ASCII
Wired up in the nextjs-chat example app
Docs: new adapter page + updated feature matrices on the adapters overview

What's included

packages/adapter-linq/ — full adapter package with openapi-fetch client
packages/adapter-linq/src/index.test.ts — unit tests (~1300 lines)
packages/adapter-linq/src/markdown.test.ts — format converter tests
apps/docs/content/docs/adapters/linq.mdx — adapter documentation
Updated turbo.json env vars, pnpm-lock.yaml, and vitest.config.ts

Test plan

pnpm --filter @chat-adapter/linq test passes
pnpm build succeeds
pnpm typecheck passes
Docs build and render correctly with new Linq page
Feature matrices on adapters overview display Linq column properly

vercel · 2026-03-07T22:28:15Z

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
chat	Ready	Preview, Comment, Open in v0	Mar 16, 2026 8:33pm
chat-sdk-nextjs-chat	Ready	Preview, Comment, Open in v0	Mar 16, 2026 8:33pm

socket-security · 2026-03-07T22:28:42Z

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	openapi-typescript@7.13.0
	openapi-fetch@0.14.1

View full report

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

SamStenner · 2026-03-15T20:45:00Z

Would love this 🙏

jonathanamccann

Hey hey, excited for this.

I think it could make sense to rebuild this off of the latest openapi spec - there's a few (nonbreaking) updates here that I think are meaningful for this use case:

text decorations
rich previews on links via LinkParts

+some deprecated fields that will reduce some of the noise =)

https://cdn.linqapp.com/openapi/linq-api-v3.yaml

jonathanamccann · 2026-03-18T17:23:07Z

packages/adapter-linq/src/index.ts

+        to: [userId],
+        // Linq API requires a message to create a chat
+        message: {
+          parts: [{ type: "text", value: " " }],


How could we help support opening a DM to give you a threadId without having to send an empty space? Happy to think through that on our end 👀

jflayhart · 2026-03-18T18:17:54Z

packages/adapter-linq/src/schema.ts

+/**
+ * This file was auto-generated by openapi-typescript.
+ * Do not make direct changes to the file.
+ */
+
+export interface paths {
+  "/v3/attachments": {
+    parameters: {
+      query?: never;
+      header?: never;
+      path?: never;
+      cookie?: never;


👋🏻 Hi. A Linq engineer here, excited to be part of the OSS community! To avoid type and API drift, would it be helpful for me to add a separate lightweight types package on our end for you to use? We already version our spec and sdk in this repo, but I can understand you not wanting to bring in an entire client SDK just for types and API models.

Let me know if that would be helpful! What @jonathanamccann mentioned above is also just as valid and perhaps easier. Would be easier to get updates and release notes too (ie set update triggers on your end if spec changes).

Hey @jflayhart! Yes, if you're able to create that types package, it would be immensely helpful for us. Please feel free to update the PR accordingly as well once you and your team have that in place.

❓ Help

Hi bensabic! Here's how I can help:

⭐ Mention me to start a conversation
✨ Mention me with "AI" to enable AI assistant mode
👀 I'll respond to messages in threads where I'm mentioned
🔥 React to my messages and I'll react back!
🚀 Active platforms: discord, slack, teams, gchat, github, telegram, whatsapp

❓ Help

Hi chat-sdk-demo[bot]! Here's how I can help:

⭐ Mention me to start a conversation
✨ Mention me with "AI" to enable AI assistant mode
👀 I'll respond to messages in threads where I'm mentioned
🔥 React to my messages and I'll react back!
🚀 Active platforms: discord, slack, teams, gchat, github, telegram, whatsapp

@bensabic not sure what this demo stuff is but...

if you're able to create that types package, it would be immensely helpful for us. Please feel free to update the PR accordingly as well once you and your team have that in place.

here's a PR to showcase the simplification and keeping things up to date. What do you think? #278

haydenbleasel requested a review from cramforce March 7, 2026 22:28

haydenbleasel added 4 commits March 14, 2026 12:29

Initial draft

47455b8

Misc fixes

d2ebf35

Add attachments support

1a308e8

Add docs

c685a8e

haydenbleasel force-pushed the linq branch from e8da4d5 to c685a8e Compare March 14, 2026 19:31

vercel bot deployed to Preview – chat-sdk-nextjs-chat March 14, 2026 19:32 View deployment

vercel bot deployed to Preview – chat March 14, 2026 19:32 View deployment

haydenbleasel and others added 2 commits March 14, 2026 12:32

Fix docs

5a53284

Fix emoji names, use getEmoji, skip outbound msgs, improve stripMarkdown

92b7e39

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

vercel bot deployed to Preview – chat-sdk-nextjs-chat March 14, 2026 19:51 View deployment

vercel bot deployed to Preview – chat March 14, 2026 19:52 View deployment

Extract shared extractParts helper, fix lint

fe9cbae

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

vercel bot deployed to Preview – chat-sdk-nextjs-chat March 14, 2026 19:58 View deployment

Add linq to integration test known packages

a878626

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

vercel bot deployed to Preview – chat March 14, 2026 19:59 View deployment

vercel bot deployed to Preview – chat-sdk-nextjs-chat March 14, 2026 19:59 View deployment

vercel bot deployed to Preview – chat March 14, 2026 20:00 View deployment

haydenbleasel requested review from NicolasMontone, cramforce and visyat and removed request for cramforce March 14, 2026 20:02

Add preferred_service support to linq adapter

19d30b7

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

vercel bot deployed to Preview – chat-sdk-nextjs-chat March 14, 2026 20:55 View deployment

vercel bot deployed to Preview – chat March 14, 2026 20:55 View deployment

Remove edit message

3e77235

vercel bot deployed to Preview – chat-sdk-nextjs-chat March 15, 2026 02:21 View deployment

vercel bot deployed to Preview – chat March 15, 2026 02:21 View deployment

Add Linq to adapters

eaaedc5

vercel bot deployed to Preview – chat-sdk-nextjs-chat March 16, 2026 20:32 View deployment

vercel bot deployed to Preview – chat March 16, 2026 20:33 View deployment

jonathanamccann reviewed Mar 18, 2026

View reviewed changes

jflayhart reviewed Mar 18, 2026

View reviewed changes

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haydenbleasel commented Mar 7, 2026

Summary

What's included

Test plan

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