# SchemaSure Structured Extraction API

**Canonical:** https://apis.io/apis/schemasure/schemasure-structured-extraction-api/  
**Provider:** SchemaSure — https://apis.io/providers/schemasure/  
**Base URL:** https://schemasure.com  
**Documentation:** https://schemasure.com

SchemaSure Structured Extraction API is published by [SchemaSure](https://apis.io/providers/schemasure/) on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Structured Data Extraction, text-to-JSON, JSON-Schema, Document Parsing, and Data Cleaning. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

REST API (OpenAPI 3.1) exposing POST /v2/extract for text/HTML and POST /v2/extract-image for document images (both x402 V2 paid, charge-only-on-success), a deprecated legacy POST /extract with 3 free evaluation calls per client, and GET /health. Converts unstructured content into JSON guaranteed to validate against a caller-supplied JSON Schema (Ajv, draft 2020-12) or returns a typed error at no charge. Documented for agents via llms.txt and a machine-readable well-known surface (x402 manifests, pricing, benchmarks, data-handling contract).

## Machine-readable artifacts (7)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/schemasure/refs/heads/main/openapi/schemasure-openapi.json
- **LLMsTxt** — https://raw.githubusercontent.com/api-evangelist/schemasure/refs/heads/main/llms/schemasure-llms.txt
- **Documentation** — https://schemasure.com/llms.txt
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/schemasure/refs/heads/main/overlays/schemasure-openapi-overlay.yaml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/schemasure/refs/heads/main/errors/schemasure-problem-types.yml
- **ToolCrosswalk** — https://raw.githubusercontent.com/api-evangelist/schemasure/refs/heads/main/mcp/schemasure-tool-crosswalk.yml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/schemasure/refs/heads/main/apis.yml

## Tags

Structured Data Extraction, text-to-JSON, JSON-Schema, Document Parsing, Data Cleaning, LLM Tooling, AI Agents, x402-micropayments, agent-native, A2A, MCP

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/schemasure/schemasure-structured-extraction-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/schemasure/.