# mnemEcho Pronunciation API > Score Dutch speech against its text. Send a Dutch sentence (1 to 12 words) and a recording of someone saying it; get a 0 to 100 pronunciation score, a verdict (excellent, pass, marginal_fail, hard_fail), and every word and sound marked, with a short English tip on each wrong sound. Words said as another word are flagged (wrong_word). Audio is scored in memory and never stored. Base URL: https://api.mnemecho.com/api/v1 Auth: `Authorization: Bearer ` or `X-API-Key: `. Keys are free during early access, by request to hello@mnemecho.com. Only pronunciation is graded on this endpoint; rhythm, pitch and vowel length need a native reference and are not graded. Voice quality is never graded. ## Docs - [API reference](https://mnemecho.com/en/docs/): endpoints, the response field by field, verdicts, flags, errors, limits - [OpenAPI 3.1](https://mnemecho.com/openapi.json): machine-readable description - [Pricing](https://mnemecho.com/en/pricing/): early access, free tier, Pro, credits - [Status](https://mnemecho.com/en/status/): `GET /status` needs no key ## Endpoints - `POST /score` multipart: `text` (form field), `audio` (file: wav, flac, ogg or mp3, at most 15 s and 4 MB). Returns score, verdict, words[].sounds[], worst_word, flags. - `GET /health` with a key: your client name and limits. - `GET /status` no key: `{"ok": true}` when the service answers. ## Tips for agents - Send sentences of three words or more; a single word alone is often not heard (422). - Write numbers as words ("twaalf", not "12"). - 422 "could not be heard" is not a low score: ask the speaker to try again. - 429 carries `Retry-After` in seconds. ## Tell us what you need - Missing feature, bug, or a payment method you need: open an issue at https://github.com/EazyEzar/mnemecho-api/issues or write to hello@mnemecho.com. ## Optional - [Examples](https://github.com/EazyEzar/mnemecho-api/tree/main/examples): curl, Python, JavaScript - [Changelog](https://github.com/EazyEzar/mnemecho-api/blob/main/CHANGELOG.md) - [Privacy](https://mnemecho.com/en/privacy/), [Terms](https://mnemecho.com/en/terms/)