# Patchwell > Pay-per-call tools for developers and AI agents, with results that explain themselves: transcription with word > timings, data cleaning with a per-value change log, and research answers where every claim cites its source. > HTTP API and MCP server. Prepaid credit; empty results and refusals are free. Research never looks up people. ## Connect - MCP (streamable HTTP): https://patchwell.io/mcp/ with header `Authorization: Bearer ` - HTTP: https://patchwell.io/v1/... with the same header; JSON in, JSON out - Free key, no card: POST https://patchwell.io/v1/credits/trial with {"email": "..."} -> {"api_key", "credit_usd": 1.0} (one per email) - More credit: https://patchwell.io/#pricing (Stripe); buying with the same email tops up the same key ## Tools - transcribe(url, language?): audio/video up to 3 h -> words with start/end/confidence, segments, SRT, VTT, text, flags. $0.008 per audio minute. - clean_data(url | content_base64+filename, dedupe_on?, required?, hints?, recipe?, phone_region?, phone_format?): CSV/XLSX/JSON -> clean rows, review list, change log, detected columns, value clusters, JSON Schema, replayable recipe, row accounting. $2 per 1,000 rows. - research(question, context?): topics, markets, products, companies, places, events, published research -> answer with a cited URL per claim, gaps (unverified), confidence. $0.15 per answered question. Refuses questions about specific people, naming the category. - get_job_result(job_id): calls longer than about 100 s return {status: "running", job_id}; poll every 20-30 s. ## Docs - [Quickstart](https://patchwell.io/quickstart) - [API reference (OpenAPI)](https://patchwell.io/docs) - [Machine-readable catalog](https://patchwell.io/v1/tools) - [Terms](https://patchwell.io/terms) ยท [Privacy](https://patchwell.io/privacy)