For developers and CTOs

Five integrations you would build yourself, behind one API key.

Mailboxes, parsing, CRM sync, error tracking and tunnels, compatible with Nylas v3, Rollbar and ngrok, and a drop-in replacement for mailparser.io.

Get your API key Read the docs

Free tier on every product. No card. All five APIs included.

# Send from a connected Gmail (Nylas v3 format)
curl -X POST $API/v3/grants/$GRANT/messages/send \
  -H "Authorization: Bearer $SYNCYAK_API_KEY" \
  -d '{"to":[{"email":"[email protected]"}],
       "subject":"Saturday showing",
       "body":"See you at 10."}'

NylasMail
MailparserParse
CRM ETLCRM
RollbarCloud Logging
ngrokTunnel

Each tab is a real request or setting. Values are examples.

Jobs it does

The integrations on your roadmap, already built

Each one is a product with its own API, console, plan and free tier.

Let your users connect their mailboxes
Hosted OAuth on your own Google and Microsoft apps, plus IMAP. You get a grant id; new mail arrives as signed webhooks; send with POST /v3/grants/{id}/messages/send.
Done with: Mail
Turn inbound email into JSON
Inboxes on parse.syncyak.com or your domain, templates and rules you test against real messages, signed webhooks retried on failure, SendGrid Inbound Parse compatible.
Done with: Parse
Get CRM data into your own database
Eight real-estate CRMs into Postgres or MySQL, a typed _flat view per table, CRM webhooks from Hobby, and a from_syncyak_ table that writes back.
Done with: CRM
Know when production breaks
The Rollbar SDKs with one endpoint changed: grouping, live tail, source maps, deploys, Slack and Datadog.
Done with: Cloud Logging
Test webhooks against localhost
syncyak http 3000 on Windows, macOS and Linux, reserved subdomains from Hobby, and a request inspector.
Done with: Tunnel

How it works

From sign-up to first request in three steps

1
Create an account and an API key
Every product starts on Free. Keys can cover all five products or only the ones a service needs.
Every API
```
Authorization: Bearer sy_live_…
```
2
Point your code at SyncYak
Change the host or the endpoint in the SDK you already run, or call the REST API. Webhooks are JSON, signed with HMAC-SHA256.
Rollbar SDK
```
endpoint: 'https://api.syncyak.com/api/1/item/'
```
Scale one product at a time
Move the busy product up a tier, or switch on on-demand usage with a monthly cap. The others stay where they are.

Before and after

What leaves your backlog

Integration work that never ships features, before and after.

Mailbox integration
Before
Google and Microsoft OAuth, token refresh, IMAP fallbacks, push notifications and a send queue, all yours to maintain.
With SyncYak
A hosted connect page on your own OAuth apps, webhooks for new mail, and one send endpoint in the Nylas v3 format.
Lead email parsing
Before
Regexes per portal that break when a vendor changes its template, and a retry loop around your webhook.
With SyncYak
Templates for the common portals, a catch-all, rules you test against real messages, signed deliveries with retries.
CRM data
Before
A sync job per CRM API, with its own rate limits, pagination and schema drift.
With SyncYak
Eight CRMs in your own Postgres or MySQL, a typed view per table, and field mapping back to the CRM.

Example situations, to show how the products fit a working day.

CRM enrichment

Your sheet or your database becomes your CRM’s enrichment engine

Write scores, segments and flags into a table in your own Postgres or MySQL, from SQL, a scheduled job or a scoring model. Whenever a row is inserted or changed, SyncYak writes it into the matching lead in Follow Up Boss, Lofty, HighLevel or Cloze.

Your leads land in your database
Every CRM lead syncs into to_syncyak_acme_people, one row per lead with its CRM id, plus a typed _flat view.
Map each column to a field
Write values into from_syncyak_acme_people, keyed by the same id, and map each column to a CRM field. Missing fields are created.
Update a row, the CRM follows
Only inserted or changed rows are written, at your plan’s pace. An empty value never clears a CRM field.

Postgres: score a lead

insert into from_syncyak_acme_people
  (id, lead_score, persona, pre_approved)
values ('4821', 87, 'First-time buyer', true)
on conflict (id) do update set
  lead_score   = excluded.lead_score,
  persona      = excluded.persona,
  pre_approved = excluded.pre_approved;

Included from CRM Hobby, $29 a month.

Maria Gonzalez · Follow Up Boss lead 4821

to_syncyak_acme_peoplePostgres or MySQL

Example rows of the synced leads table
id	name	stage	_synced_at
4817	Tom Becker	Showing	10:52
4821	Maria Gonzalez	Lead	11:03

from_syncyak_acme_people

Example rows of the mirror table your team writes
id	lead_score	persona	pre_approved
4817	62	Upsizer	false
4821	87	First-time buyer	true

lead_scoreLead score
personaPersona
pre_approvedPre-approved

Maria Gonzalez

Follow Up Boss · lead 4821

Custom fields

Lead score: 87
Pre-approved: Yes
Persona: First-time buyer

Updated from your database

Leads synced into your database, your values matched on the CRM lead id and written into the lead’s custom fields. Example data.

Build it, stitch it, or SyncYak

Five vendors and five bills, or one account

Building these yourself means OAuth and token refresh, IMAP, parsing rules, retries, an ETL per CRM API, and keeping all of it running. Stitching vendors means five contracts. Here are the published list prices.

Published vendor list prices next to SyncYak Hobby prices, per month
What you need	Stitched together, list price	SyncYak, one account
10 connected mailboxes	$25Nylas: $15 for 5, then $2 each	$12for 10
1,000 parsed emails a month	from $30Mailparser.io: about $30 to $34 for 250 to 500	$9for 1,000
100,000 error events a month	$49Rollbar: $49 for 100,000	$9for 100,000
Tunnels for webhook testing	$10ngrok Hobbyist: $10 with 5 GB	$8with 25 GB
CRM leads in your own sheet or database	from $1,985Rollout: from $1,985 a month	$29on Hobby
One login, one API key, one bill	Five accounts, five dashboards, five invoices	$67a month, all five on Hobby

Vendor prices are their published list prices as of October 2026 and may have changed; check their pricing pages. SyncYak prices are this site’s current catalog. Every SyncYak product also has a free tier.

Swap the vendor, keep the code

Compatible with what you run today

Each product speaks a format you already have in production, so moving is a configuration change, not a rewrite.

What changes when you move each tool to SyncYak
You use today	On SyncYak	What you change
Nylas v3	Mail	The API host, client ID and secret
Rollbar	Cloud Logging	The SDK’s endpoint
mailparser.io	Parse	Ready-made lead templates, or build your own in minutes
SendGrid Inbound Parse	Parse	The Inbound Parse URL
ngrok	Tunnel	The command: syncyak http 3000
A CRM ETL you maintain	CRM	A database connection string and a CRM key

Reliability

Built so a bad hour does not lose data

The details an on-call engineer asks about first.

Store first, then process
Inbound email is written to disk before parsing; webhook deliveries keep a history you can replay.
Retries with backoff
Timeouts, 408, 429 and 5xx answers are retried for about an hour, 30 seconds doubling. Any 2xx is final, so a lead is never created twice.
Any server answers
DNS lists every node. A request that lands on the wrong one is forwarded, signed, to the node holding your account.
Limits with headroom
Monthly counters run 10% past the plan before they stop, and owners are emailed at 80% and 100%.
Scoped credentials
API keys per product, signing secrets per inbox and per webhook, rotatable at any time.
Your database, your data
CRM sync writes into your Postgres or MySQL; SyncYak keeps queues, not a second copy of your CRM.

Pricing

Start every API on Free, pay per product as it grows

Each product has its own tier, so a busy Parse inbox does not push your tunnels onto a bigger plan. Past a monthly limit, switch on on-demand usage with a cap instead of upgrading.

Start with these products Every price and limit

$67a month for all five products on Hobby. All five on Free cost $0.

Questions developers ask

Something else? Write to [email protected] and a person answers.

How do I authenticate?

With an account API key in the Authorization header: Bearer sy_live_…. Create keys in the dashboard; each can cover every product or a list of them. Mail also accepts its application secret, as Nylas does.

Are there SDKs?

Use the ones you have: Nylas v3 clients for Mail and the Rollbar SDKs for Cloud Logging. Parse and CRM are plain REST and webhooks, and Tunnel is a single CLI binary.

How are webhooks signed?

Parse sends X-SyncYak-Signature: the timestamp and an HMAC-SHA256 of the timestamp and body with the inbox’s secret. Mail sends X-Nylas-Signature, as Nylas does. Refuse old timestamps and compare in constant time.

What does it cost when we grow?

Each product is priced on its own, so you pay for the one that grows. All five on Hobby is $67 a month; past a monthly limit, on-demand usage is billed per unit up to a cap you set.

Your API key is one form away

Create a free account with all five products switched on, then make your first call from the terminal.

Get your API key Read the docs

Free tier on every product. No card.

Five integrations you would build yourself, behind one API key.

The integrations on your roadmap, already built

Let your users connect their mailboxes

Turn inbound email into JSON

Get CRM data into your own database

Know when production breaks

Test webhooks against localhost

From sign-up to first request in three steps

Create an account and an API key

Point your code at SyncYak

Scale one product at a time

What leaves your backlog

Your sheet or your database becomes your CRM’s enrichment engine

Your leads land in your database

Map each column to a field

Update a row, the CRM follows

Five vendors and five bills, or one account

Compatible with what you run today

Built so a bad hour does not lose data

Store first, then process

Retries with backoff

Any server answers

Limits with headroom

Scoped credentials

Your database, your data

Start every API on Free, pay per product as it grows

Questions developers ask

Your API key is one form away