SchemaSure website screenshot

SchemaSure

Structured data extraction API that converts unstructured text or HTML into JSON guaranteed to validate against a caller-supplied JSON Schema, or returns a typed error at no charge. Access is gated by x402 pay-per-call micropayments (USDC on Base), with no accounts or API keys.

SchemaSure publishes 1 API on the APIs.io network: Structured Extraction API. Tagged areas include Structured Data Extraction, text-to-JSON, JSON-Schema, Document Parsing, and Data Cleaning.

SchemaSure’s developer surface includes authentication, sandbox, pricing, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub
39.3/100 developing ▬ flat Agent 41/100 agent ready Full breakdown ↓
scored 2026-09-06 · rubric v0.19.0
1 APIs 1 MCP Servers
Structured Data Extractiontext-to-JSONJSON-SchemaDocument ParsingData CleaningLLM ToolingAI Agentsx402-micropaymentsagent-nativeA2AMCP

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-06 · rubric v0.19.0
Composite quality — 39.3/100 · developing
Contract Quality 11.1 / 25
Developer Ergonomics 7.5 / 20
Access Clarity 10.5 / 20
Operational Transparency 1.4 / 13
Contract Governance 0.5 / 12
Discoverability 8.3 / 10
Agent readiness — 41/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 8 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/schemasure: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

SchemaSure Structured Extraction API

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 PO...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

SchemaSure MCP Server

First-party MCP client, local-stdio only (npx -y @noamjose/schemasure); no hosted endpoint — /mcp probed 404 on 2026-09-03.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Schemasure Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Schemasure Rate Limits

0 limits

RATE LIMITS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Schemasure Authentication

2 schemes

SECURITY

Schemasure Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Schemasure Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Sandbox
Sandbox

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown
 MCPServer
MCPServer
 AgentSkill
AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 Lifecycle
Lifecycle
 Conventions
Conventions
 DataModel
DataModel

Build 2

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs

Access & Security 5

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 SecurityTxt
SecurityTxt
 Security
Security
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Plans
Plans
 Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Website
Website

Other 1

Properties that don't map to a standard resource type

APIsJson
APIsJson

Source (apis.yml)

apis.yml Raw ↑ 
name: SchemaSure
description: Structured data extraction API that converts unstructured text or HTML into JSON guaranteed to validate against
  a caller-supplied JSON Schema, or returns a typed error at no charge. Access is gated by x402 pay-per-call micropayments
  (USDC on Base), with no accounts or API keys.
url: https://schemasure.com/apis.json
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
created: '2026-07-19'
modified: '2026-09-03'
specificationVersion: '0.23'
tags:
- Structured Data Extraction
- text-to-JSON
- JSON-Schema
- Document Parsing
- Data Cleaning
- LLM Tooling
- AI Agents
- x402-micropayments
- agent-native
- A2A
- MCP
tags_raw:
- structured-data-extraction
- text-to-JSON
- JSON-Schema
- document-parsing
- data-cleaning
- LLM-tooling
- AI-agents
- x402-micropayments
- agent-native
- A2A
- MCP
apis:
- name: SchemaSure Structured Extraction API
  description: 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).
  humanURL: https://schemasure.com
  baseURL: https://schemasure.com
  tags:
  - Structured Data Extraction
  - text-to-JSON
  - JSON-Schema
  - Document Parsing
  - Data Cleaning
  - LLM Tooling
  - AI Agents
  - x402-micropayments
  - agent-native
  - A2A
  - MCP
  tags_raw:
  - structured-data-extraction
  - text-to-JSON
  - JSON-Schema
  - document-parsing
  - data-cleaning
  - LLM-tooling
  - AI-agents
  - x402-micropayments
  - agent-native
  - A2A
  - MCP
  properties:
  - type: OpenAPI
    url: openapi/schemasure-openapi.json
  - type: LLMsTxt
    url: llms/schemasure-llms.txt
  - type: Documentation
    url: https://schemasure.com/llms.txt
  - type: Overlay
    url: overlays/schemasure-openapi-overlay.yaml
  - type: ErrorCatalog
    url: errors/schemasure-problem-types.yml
  - type: ToolCrosswalk
    url: mcp/schemasure-tool-crosswalk.yml
  image: https://schemasure.com/icon.svg
maintainers:
- FN: SchemaSure Support
  url: https://schemasure.com
  email: support@schemasure.com
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 95
  at: '2026-07-19T22:23:17.395Z'
common:
- type: Website
  url: https://schemasure.com
- type: VulnerabilityDisclosure
  url: security/schemasure-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/schemasure-domain-security.yml
- type: WellKnown
  url: well-known/schemasure-well-known.yml
- type: SecurityTxt
  url: well-known/schemasure-security.txt
- type: Security
  url: security/schemasure-vulnerability-disclosure.yml
- type: Packages
  url: packages/schemasure-packages.yml
- type: SDKs
  url: packages/schemasure-packages.yml
- type: MCPServer
  url: mcp/schemasure-mcp.yml
  description: First-party MCP client, local-stdio only (npx -y @noamjose/schemasure); no hosted endpoint — /mcp probed 404
    on 2026-09-03.
- type: Conformance
  url: conformance/schemasure-conformance.yml
- type: Lifecycle
  url: lifecycle/schemasure-lifecycle.yml
- type: Authentication
  url: authentication/schemasure-authentication.yml
- type: Sandbox
  url: sandbox/schemasure-sandbox.yml
- type: Conventions
  url: conventions/schemasure-conventions.yml
- type: DataModel
  url: data-model/schemasure-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Plans
  url: plans/schemasure-plans-pricing.yml
- type: RateLimits
  url: rate-limits/schemasure-rate-limits.yml
- type: APIsJson
  url: https://schemasure.com/apis.json
  description: Provider-published APIs.json 0.18 portfolio discovery index (also saved at well-known/schemasure-apis-json.json).
- type: Pricing
  url: https://schemasure.com/.well-known/pricing.json
- type: TermsOfService
  url: https://schemasure.com/terms
- type: PrivacyPolicy
  url: https://schemasure.com/privacy
image: https://schemasure.com/icon.svg
x-enrichment:
  date: '2026-09-03'
  status: enriched
  artifacts_added: 30
  pass: local-v2

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