LoginSign Up
← Back to all sparks
Daily Brief · May 15, 2026

Agents grow infrastructure: REST APIs, identity, and metered billing arrive on the same day.

agentic-infrastructureusage-based-pricingnon-human-identityplatform-pivotsai-assistantsdeveloper-platforms
O
By Onur Öztürk
LinkedIn ↗
Generated 6d agoDrawn from 14 products

The lead

The two highest-velocity products today were both quietly building the infrastructure that AI agents need to become billable, callable services rather than demos. GitHub Copilot shipped a REST API for its cloud agent and is migrating from flat-rate to AI-credit metering on the same timeline, opening the door for webhook-fired tasks (PR opened, issue created) and the pricing that pays for them. HashiCorp, now a year inside IBM, made non-human identity a first-class concern in Vault and pulled SPIFFE forward as the credential primitive for agentic workloads.

Read together, the two updates describe the same emerging stack from opposite ends. Copilot is teaching agents how to be invoked and charged; HashiCorp is teaching them how to authenticate. The piece that has to follow is the runtime where agents actually do the work — and four other products in today's feed are building exactly that.

What moved

  • Slack kept converging its developer platform on one thesis: Slack is the surface where agents talk to humans. The CLI v4 release centers on slack create agent, the MCP server keeps gaining tools, and Block Kit added streaming-text APIs and Alert/Card/Carousel blocks designed for agent output.
  • Writer completed its repositioning from AI writing assistant to agentic enterprise platform — citation-backed research drawing on FRED, OECD, World Bank and SEC EDGAR, plus Playbooks/Skills as the reusable unit of organizational know-how. No model news at all, which is the point: the bet is on orchestration over any frontier model.
  • WeWeb crossed from front-end no-code into full-stack AI app generation, putting it in direct competition with Bolt, Lovable, and Cursor. The native backend launched in April; May added multi-page AI generation.
  • MailerLite shipped a redesigned editor with an in-flow AI agent for HTML email composition, alongside Stripe-driven product pages and bookings — the email tool turning into a creator commerce stack.
  • Semrush keeps building the GEO measurement layer (Reddit signals, sentiment data, the LLM Gap Analyzer in App Center) and embedding itself inside builder flows via the Lovable partnership.

Sectors today

  • AI assistants (5 products): the loudest sector. Copilot, Writer and D-ID all repositioned around agentic delegation and real-time conversation; Character.AI is fragmenting into formatted creator surfaces (labs, books, Imagine Gallery); Glasp is narrowing toward YouTube creators.
  • Development (3 products): HashiCorp owns the day's identity story; WeWeb owns the full-stack AI builder story; Bitwarden is the steady counterweight — six dot releases of plumbing including ml-dsa44 post-quantum keypairs, .NET 10, and methodical feature-flag retirement.
  • Marketing (2 products): HighLevel is the cleanest example of the no-pivot strategy — daily incremental drops across every surface, betting that breadth-plus-cadence wins the all-in-one category. Semrush is pivoting around it.
  • Communication & messaging (2 products): Slack pushes hard on agents; Proton Bridge is in deep maintenance mode, hardening fixes and feature flags only.

Watch tomorrow

The pattern to watch is whether non-AI categories absorb the agent thesis or stay deliberately outside it. Birdview PSA and HighLevel both shipped meaningful work today with no agentic surface; their AI experiments from prior quarters have had no follow-up. Bitwarden and Proton Bridge are betting on different infrastructure — encryption, billing, post-quantum primitives — that agents will eventually need but that doesn't move with the same news cycle. If Copilot's REST + metering combo is the template, expect at least one of those products to surface a usage-API or programmatic surface within the next month.