Mathpix OCR API
- Free allowance
- No free tier and no free trial for the OCR API: a one-time USD 19.99 non-refundable setup fee activates the first API key and applies a USD 29 testing credit to the account; a credit or debit card is required to activate a key.
- Verdict
- paidno free allowance; listed for its price
- Cost
- no price stated
- Identity
- cardcard required, no phone
- Binding limit
- volume-quotaUSD 29 testing credit applied after the one-time USD 19.99 setup fee; the default page limit is 20,000 pages per month for v3/pdf and files/v1 together, per API key
- Evidence
- documented18 sources; a first-party page was read and the sentence quoted
- Freshness
- stale on 2026-12-04checked 2026-11-03 (live); stale on 2026-12-04
| Free tier | no free tier and no free trial for the OCR API: a one-time USD 19.99 non-refundable setup fee activates the first API key and applies a USD 29 testing credit to the account; a credit or debit card is required to activate a key. Billing is per use after the credit: image OCR USD 0.002 per image, documents (PDF, DOCX, PPTX) USD 0.005 per page, batch documents USD 0.0015 per page unit credits; metered on unstated; the testing credit is denominated in USD (USD 29); the metered unit is images for v3/text and pages for v3/pdf and the Files API, for which the vocabulary has no term |
|---|---|
| Price | none stated |
| Limits |
|
| Binding | volume-quota a card and a USD 19.99 setup fee gate the key before any quota exists; the USD 29 testing credit then runs out first |
| Identity | card a Mathpix account with a verified email, then an API organization on the Pay as you go plan with a credit or debit card added and a one-time non-refundable setup fee paid before a key is issued |
| Egress | the response is the payload; no separate egress term is published; the Files API can write results to a customer-owned S3, GCS or Azure bucket |
| Per-object cap | unverified: no per-file size or per-document page cap read on the pricing, billing or limits pages; the Files API accepts a job of up to 200,000 documents |
| Retention | images are stored for quality assurance for 30 days by default; a retention opt-out deletes images within 24 hours (30 days) |
| Interface | rest, cli REST endpoints v3/text (image), v3/pdf (documents), v3/strokes (digital ink) and files/v1 (asynchronous batch); the open-source Mathpix CLI (mpx) drives the hosted API endpoint: https://api.mathpix.com/v3/text |
| Tooling | any HTTP client with app_id and app_key headers; the Mathpix CLI (mpx) handles uploads, status polling and downloads |
| Composes with | a paid OCR lane for printed and handwritten STEM content (math, tables, chemistry diagrams); the USD 29 testing credit costs a USD 19.99 setup fee and a card, so the no-card hosted OCR offers come before it |
| Reliability | no reliability event recorded; the page limit and rate limit are per key and can be raised from the console Requests tab |
| Evidence note | documented the card requirement, the setup fee, the testing credit, the prices and the default limits are quoted from vendor pages read on 2026-11-03; no request was made, because a key needs a paid setup. The per-file size cap is unverified. |
| Parsed numbers |
|
Evidence 18
| date | source | what it proved |
|---|---|---|
| 2026-11-03 | mathpix.com/pricing/api | an API key is activated by a one-time USD 19.99 setup fee |
| 2026-11-03 | mathpix.com/pricing/api | the Pay as you go plan includes a USD 29 credit for testing |
| 2026-11-03 | mathpix.com/docs/convert/billing | the API has no free trial; the setup fee buys the USD 29 testing credit |
| 2026-11-03 | mathpix.com/docs/convert/creating-an-api-key | a credit or debit card is required to activate an API key |
| 2026-11-03 | mathpix.com/docs/convert/creating-an-api-key | the REST endpoint and its app_id and app_key header authentication |
| 2026-11-03 | mathpix.com/pricing/api | v3/text accepts images and returns LaTeX, Markdown or MathML |
| 2026-11-03 | mathpix.com/pricing/api | v3/pdf accepts PDF, DOCX and PPTX and is billed per page |
| 2026-11-03 | mathpix.com/docs/convert/limits | the default monthly page limit per key, shared by v3/pdf and files/v1 |
| 2026-11-03 | mathpix.com/docs/convert/limits | the default synchronous rate limit per key |
| 2026-11-03 | mathpix.com/pricing/api | default image retention is 30 days with an opt-out that deletes within 24 hours |
| 2026-11-03 | mathpix.com/pricing/api | the Files API takes a job of up to 200,000 documents and can write results to the customer's own bucket |
| 2026-11-03 | mathpix.com/pricing/api | image OCR is billed at USD 0.002 per image |
| 2026-11-03 | mathpix.com/pricing/api | document pages through v3/pdf are billed at USD 0.005 per page |
| 2026-11-03 | docs.mathpix.com/ | the service recognises printed and handwritten STEM content from images, stroke data or PDF files |
| 2026-11-03 | docs.mathpix.com/ | a command-line client drives the hosted API |
| 2026-11-03 | mathpix.com/docs/convert/limits | asynchronous requests are exempt from the per-minute rate limit |
| 2026-11-03 | mathpix.com/docs/convert/limits | limit increases are self-service from the console |
| 2026-11-03 | mathpix.com/docs/convert/creating-an-api-key | the account needs a verified email before the organization and billing steps |