Connect the systems you already pay for.
Postgres, Stripe, Salesforce, NetSuite, S3 and 140 more. Changes arrive as typed events within 400 ms, with the schema checked on the way in.
146 connectorsCDCWebhooks
Tessel 4.0 · Agents with approvals
Build your operations block by block.
Tessel turns workflows, data and AI agents into blocks your team can stack, test and ship. Every block is versioned. Every run is traced.
1,284,092 runs today
SOC 2 Type II
p95 184 ms per block
In production at 1,900 teams
HaldennorthwindKestrel/BankLumen FreightOruparcel&coVela HealthAtlas Mutual
The stack
Four layers. One foundation your whole company builds on.
Join, branch and transform without glue code.
Logic blocks compile to plain TypeScript you can read. Every change is a diff that someone reviews before it reaches production.
TypeScript outGit syncUnit tests
Hand judgment calls to agents with limits.
Each agent gets a budget, a list of tools and a named approver. It cannot exceed any of the three, and every decision it makes is logged with its reasoning.
Spend capsTool scopesAudit log
Ship results where people already work.
Send to Slack, email or an API endpoint, or generate an internal app from the same blocks. Permissions follow the data all the way through.
SlackREST + webhooksInternal apps
Blocks
Built for the day something breaks.
Automation is easy to start and hard to trust. These are the parts that make Tessel safe to run your month-end close on.
Versioned by default
Every block keeps its history. Diff two versions, see who approved each one and roll back in a click.
v14 · 3 reviewers
Every run, traced
Follow one invoice through 14 blocks and see the input, output and latency of each step.
30-day traces on Team
Agents in a cage
Agents run inside the limits you set for spend, tools and data. Anything outside those limits stops and asks a person.
$40 / run cap
Approvals in Slack
Route sensitive steps to a person. They approve from Slack or email and the run picks up where it paused.
Median approval 4 min
Replay before you publish
Run a draft against last week's real events and compare its output with production before anything goes live.
7 days of replay
Your data stays put
Pin a workspace to the EU, US or APAC. Runs execute in that region and data never leaves it.
12 regions · 3 jurisdictions
Why blocks
Most automation tools hand you a blank canvas and wish you luck. Tessel hands you a foundation. Every block is typed, tested and traced before it touches production, so the thing you built in March still works in December.
Load-bearing
Two billion runs a month. Still boring, on purpose.
2.1B
Runs in September
99.99%
Uptime, trailing 12 months
184 ms
p95 latency per block
Blueprints
Start from a blueprint. Ship it by Friday.
Halden · Case study
“We replaced 31 cron jobs and two automation accounts with one Tessel workspace. Month-end close went from six days to two, and nobody misses the spreadsheets.”
IV
Ingrid Valk
Head of Finance Operations, Halden
6 → 2
Days to close the books
31
Cron jobs retired
0
Missed approvals since launch
Pricing
Pay per builder. Runs are on us up to a point.
Starter
$0
forever
For one team proving the first workflow.
- Up to 3 builders
- 10,000 runs a month
- All 146 connectors
- 7-day traces
Team
Most teams
$39
per builder / month
For companies running real money through it.
- Unlimited builders and blocks
- 500,000 runs a month
- Agents with approvals
- 30-day traces and replay
Enterprise
Custom
For regulated teams with auditors to answer to.
- SSO, SCIM and audit export
- Region pinning and residency
- 1-year traces
- 99.99% SLA, named engineer
Questions
Asked before you build.
One trigger firing one workflow from start to finish is one run, however many blocks it passes through. Retries of a failed block are free.
Yes. Logic blocks compile to TypeScript and sync to your Git repository. If you leave Tessel, the code stays readable and runnable.
You choose per agent. Tessel supports the major hosted models and your own endpoints, and your data is never used for training.
Each approval step names a primary and a backup. After the timeout you set, the request moves to the backup and the run waits safely until someone answers.
Tessel holds SOC 2 Type II and ISO 27001, signs DPAs on every plan and offers EU-only processing from the Frankfurt and Dublin regions.
Your turn
Place your first block.
Click any tile to stack a block on it. Then build the real thing, free for up to three builders, no card required.