Parse vs Promptfoo
Promptfoo is excellent for testing prompts, models, and red-team cases before release. Parse is a runtime protection API that screens live agent inputs, outputs, and handoffs.
| Dimension | Parse | Promptfoo |
|---|---|---|
| Primary fit | Runtime prompt protection | Evaluation, testing, red teaming |
| Invocation | Agent calls API or MCP tool during execution | Developer runs test suites |
| Payment | API keys or x402 | Project/tooling billing or open-source use |
| Output screening | Runtime endpoint | Test-time assertions |
| Agent handoff | Runtime trust verification | Test scenarios |
| Best together | Use Promptfoo to build tests; use Parse to enforce runtime checks | Use Parse responses as fixtures or assertions |
Use Promptfoo to evaluate whether your agent can be attacked. Use Parse when the deployed agent needs a live screening decision before taking action.