CrabTalk vs Inngest.
Event-driven durable workflows
Inngest coordinates event-driven functions through durable steps, retries and flow control. CrabTalk exposes reusable tool services with their own SQL state and explicit per-call resource budgets.
Which fits your work?
CrabTalk
- A shared SQL operation called by several agents
- Reusable services available through MCP and HTTP
- Small memory reservations with bounded execution
Inngest
- Multi-step jobs that resume after failures
- Event-driven coordination and concurrency control
- Workflow code running in an existing application or worker
Use both.
An Inngest step can call a CrabTalk HTTP tool for a shared eligibility check. Inngest can coordinate subsequent events and retries while the service owns the check’s distinct records.
Capabilities side by side.
| Capability | CrabTalk | Inngest |
|---|---|---|
| Primary unit | A deployed service containing callable tools | Event-triggered functions with durable steps |
| State | Service-owned SQL tables and key-value records | Saved step results and workflow execution state |
| Recovery | Transactions per call; scheduled wakes can retry | Retry failed work using recorded step results |
| Scheduling | UTC crons and one pending wake per service | Events, waits, schedules and flow control |
| Code hosting | CrabTalk hosts the Rust/Wasm tools | Functions run on your HTTP endpoint or Connect worker |
| Resource control | CPU, rows and memory budgeted per call | Step concurrency plus resources of the execution host |
| Agent access | Discover services and call tools over MCP | Durable agent workflows and application integrations |
Check eligibility before a customer follow-up.
A single eligibility lookup and an event-driven follow-up sequence solve different parts of the same job.
CrabTalk
- Choose a service or define the eligibility SQL tool
- Configure its data and per-call budget
- Let the caller query it before taking action
Inngest
- Define event-triggered eligibility and follow-up steps
- Serve the function or start a Connect worker
- Configure retries and wait for follow-up events
CrabTalk vs Inngest pricing.
CrabTalk
Callers pay a published tool’s price when it has one. Service owners pay runs, CPU, reserved memory-time and database rows, plus upstream provider usage. Memory is reserved per tool and can be lowered once for a smaller call.
Inngest
Inngest Cloud plans meter executions, events and observability, with separate capacity limits. An execution includes a function run and each step; a five-step function uses six executions. Include the infrastructure running your functions.
Count steps and hosting, rather than comparing one workflow to one tool invocation. Inngest’s orchestration and optional platform features are outside the hosting calculator.
Limits that affect the choice.
- CrabTalk’s 100 ms CPU, 128 MiB memory and 60-second call-chain limits fit small operations. It does not resume arbitrary application code from a saved step.
- Inngest’s workflow history records progress; a shared business database can still be required. Its platform also includes sandboxes, which have separate execution and pricing considerations.
- Retries can repeat external side effects. Use stable operation identifiers and the provider’s idempotency features where appropriate.
Questions about CrabTalk and Inngest.
Does Inngest host my existing function code?
Its documented function model invokes your HTTP endpoint or a Connect worker on your infrastructure. Its separate sandbox features provide another execution option.
Does one workflow count as one execution?
Not generally. Inngest counts the function run and steps, so estimate the actual step structure along with other metered features.
Does persistent SQLite provide durable orchestration?
No. It preserves service records and transactions. Coordinating retries, events and progress across a long-running process is a different capability.
Sources.
Checked .