SchemaSure
Pay-per-call API that extracts strict, JSON-Schema-valid typed JSON from unstructured text or HTML. Output is guaranteed to validate against the caller-supplied JSON Schema (Ajv, draft 2020-12) or the request returns a typed error and is not charged (charge-only-on-success). The primary production API uses x402 V2 with USDC on Base mainnet; a legacy V1 endpoint provides limited free evaluation calls. No signup, API keys, or account dashboard — built for autonomous AI agents.
AgentCard object — a capabilities object, a declared protocolVersion, and a well-formed skills array.
/.well-known/agent.json, the
pre-0.3 location, rather than the current /.well-known/agent-card.json. Clients written
against A2A 1.0.0 will not find it.
An A2A client finds this agent by fetching the well-known path on the provider's own host. That is what makes an agent card different from every other agent artifact in this catalog: it is provider-published by construction — it cannot be derived, generated, or reconstructed on a provider's behalf.
Extract to JSON Schema extract_to_schema
Turn any unstructured text or HTML into JSON that is guaranteed to validate against a caller-supplied JSON Schema, or return a typed error with no charge. General-purpose: your schema defines the domain (invoices, receipts, resumes, product pages, logs, etc.) — there is no per-document-type specialization. For best accuracy, add a `description` to ambiguous fields (e.g. "tax rate as a decimal such as 0.0725") and make optional fields nullable so absent values return null instead of a guess. Accepts text/HTML input (inputType text|html|auto); OCR noise, number/date formats, and detail lines are normalized automatically. Benchmarked 100% schema-valid with ~0.99 field F1 and zero hallucinations across a 10-doc-type corpus (11 items, incl. an adversarial prompt-injection tier), p50 latency ~1.5s. Evidence: /.well-known/benchmarks.json. Live operational counters are at /metrics.
x402structured-outputai-agentsstructured-datajsonextractionschemajson-schematext-to-jsondata-cleaningparsingllmagents2026-07-28 from https://schemasure.com/.well-known/agent.json,
HTTP 200. The body was saved verbatim and is the sole source for
everything on this page — no field is inferred.
View the captured card.
Providers change what they serve; if this card has moved or changed shape,
the provider profile carries the
current state as of the last build.
Work with this as data
Every agent card here is available over the APIs.io API and to AI agents over MCP. A2A Agent Cards is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.