YC Summer 2026 (S26) company

Inkbox

The identity and communication layer for AI agents

b2binfrastructuredeveloper toolsaideveloper tools64 public signals

About Inkbox

For your AI agents to behave like teammates, we give them persistent identities with their own email, phone, and iMessage. We also provide them an agent-to-agent channel, so they can communicate for task delegation.

Public traction evidence

Each signal links to the public source used for attribution.

  1. X

    Today we're launching Agent2Agent on @inkbox_ai.

    Today we're launching Agent2Agent on @inkbox_ai. For your agents to behave like teammates, we gave them identities with their own email, phone, and iMessage. We've noticed a growing pattern: as agents become more autonomous, humans relay information between them. It's slow and

  2. X

    Today we're launching Inkbox: the identity and communication layer for AI agents.

    Today we're launching Inkbox: the identity and communication layer for AI agents. We give agents their own email, phone, iMessage, and an internet address. Install @inkbox_ai identity with one command: allow anyone to reach your Claude Code, Codex, or Hermes from anywhere, and

  3. X

    during our first Y Combinator office hours, our YC partner Tyler @bosmeny saw our dashboard was all cumulative charts and made us switch ...

    during our first Y Combinator office hours, our YC partner Tyler @bosmeny saw our dashboard was all cumulative charts and made us switch to daily. cumulative charts can only go up so they make you feel better than you deserve yesterday, our YC visiting partner @borisjabes...

  4. X

    building something people want feels great; building something people want to pay for feels even better

    building something people want feels great; building something people want to pay for feels even better

  5. X

    10,000 users on @inkbox_ai: thank you! It started so small, but you keep listening, you keep building, and one day it starts to compound.

    10,000 users on @inkbox_ai: thank you! It started so small, but you keep listening, you keep building, and one day it starts to compound.

  6. X

    Inkbox phone-built-company experiment

    Inkbox phone-built-company experiment

  7. X

    WHAT? @ChatGPT can make phone calls? With @inkbox_ai it can do that and way more! Try our new plugin: https://t.co/KBN70teuUV

    WHAT? @ChatGPT can make phone calls? With @inkbox_ai it can do that and way more! Try our new plugin: https://t.co/KBN70teuUV

  8. X

    WE ARE TRENDING ON https://t.co/WDFQeKZ7lA! Give your claude email, SMS, and iMessage: https://t.co/XpRPNano3O

    WE ARE TRENDING ON https://t.co/WDFQeKZ7lA! Give your claude email, SMS, and iMessage: https://t.co/XpRPNano3O