All projects matching “valid”

Extract entities/fields from text into a caller JSON Schema. Wikidata QID links + source spans. Fail closed (no charge) if output does not validate.

Audit your x402 endpoint before buyers hit it. Checks that it answers 402 on the right method, that the payment options can actually be signed (EIP-712 domain of the token matches extra.name and extra.version), that the resource URL is the https URL buyers call, and that /openapi.json and /.well-known/x402 match. Includes the CDP validate verdict, whether the CDP Bazaar lists the endpoint, its pay

Is this API safe to pay? Audit any x402 merchant or paid endpoint BEFORE you send money. Answers whether a service is trustworthy, whether it is a scam or dead, and whether it will actually deliver. Probes the live endpoint for a valid HTTP 402 challenge, detects price drift between the advertised price and the real challenge price, pulls settlement history and unique-buyer counts, and verifies on

Checkup for x402 buyer clients. Pay once and get a field-by-field diagnosis of the payment your client signed (amount, recipient, validity window, clock offset, nonce, EIP-712 signature) and of the request that arrived, plus the facilitator's verify and settle results. Base mainnet payments get the full diagnosis; Base Sepolia payments get a preview with the status of each check only.

Watch up to 25 domains for 30 days for new ransomware leak-site claims. $2.00 USDC on Base, paid once. Checked every 15 minutes; on a domain or exact-name match you get a signed webhook. Validate entries free first at POST /v1/watchlists/validate. Alerts are unverified claims from criminal leak sites, commercially reusable sources only.

Transaction receipt status/block/confirmations on Base or Ethereum via eth_getTransactionReceipt. Validates 0x hash BEFORE settle.

Detect and redact PII in text or JSON. Recognizers are pure pattern/checksum matching (regex + Luhn/mod-97/SSN-area validation) — no LLM calls, no external services. Person names and dates of birth are matched only via nearby context (e.g. 'Mr. Smith', 'DOB: ...'), not general NER, to keep false positives low.

Local EIP-55 / base58 / bech32 address validation (EVM/Solana/Bitcoin). Optional eth_getCode on Base. Amp port.

Business verification snapshot: state-registry status (NY/CO/PA/OR/CT), website-alive, address validation, phone plausibility -> verdict + confidence + flags. Not a credit report.

ISBN-10/13 check-digit validate + Open Library metadata (polite User-Agent).

Offline JSON Schema gate (type/required/properties/items + formats). Validate only — not schema-json-repair. Amp port.

AIﾉアカリ☆ Akari OS agent integration kit. The public philosophy corpus remains free; this paid machine-ready bundle adds a decision policy, safety boundary, integration recipes, validation checklist, content hash, and settlement receipt for agent workflows. Structured JSON, Base USDC, pay-per-request, no account.

API Rescue - Detect API failures, validate responses against schema or baseline, diagnose causes, and propose code fixes and regression tests in the requested language.

Live-probe any x402 URL before your agent pays it: is the 402 challenge valid, what does it really cost, which token and network, does the pay-to match the listing, and is it known to be trustworthy.

Validate JSON against an optional schema, canonicalize it, and return a SHA-256 fingerprint

MIME type for .bin files: application/octet-stream. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validate uploads for .bin correctly. $0.01 per call.

Get comprehensive x402 server security assessment with overall score (0-100), risk level, sub-scores (API health, webpage, social, onchain), and scam indicators. Ideal for pre-transaction safety validation. Price: $0.01 USDC

Sidera compiles Claude, Codex, Grok and Gemini session logs into structured memory.md and lossless raw.tar.zst with source references. Request, upload and measurement: https://shadowharness.com/sidera/ORDERING.md. 100 measured MB: $2.000000 USDC. Approx. 15-30 minutes after payment. Quote valid 10 minutes; cancellation/expiry deletes unpaid input.

Deterministic, paid-per-render SVG bar chart generator for LLM agents. Accepts labeled scalar data and layout options, performs exact geometry math (min/max normalization, nice-interval y-axis ticks, label spacing, bar-width distribution), and returns schema-valid, escape-correct SVG with identical input always yielding byte-identical output.

Cited, conflict-aware JSON intelligence brief for current-market, company, technology and regulatory questions. Returns source-bound findings, freshness, conflicts, validation evidence and a verifiable receipt.

Validate an email DOMAIN by performing an SMTP handshake WITHOUT sending. DO NOT use for bulk emailing. Returns MX records, greets, and a deliverability verdict. — $0.003 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no account. Free samples daily.

EU VAT number validation via official VIES (all 27 EU states + XI): valid/invalid, name, address, consultation (proof) number

Validates an IBAN (offline mod-97), an EU VAT number (VIES) and/or a company domain (DNS/MX) in one call.

Deterministic A2A Broken-JSON Repair & Schema Validator (/v1/json-repair) — Repairs truncated or malformed LLM JSON outputs (trailing commas, markdown fences, single quotes) so multi-agent pipelines never crash. (https://json-repair.agentdiet.dev/v1/json-repair)

B2A Email Deliverability, MX, SPF & DMARC Verifier (/v1/email-verify) — Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records. (https://email-verify.agentdiet.dev/v1/email-verify)

Validate an email address: syntax, MX resolution, disposable-domain check.

Check a STEP or STL: validity, watertightness, volume, bounding box

Fetch any public URL and report whether its HTTP 402 challenge is a schema-valid x402 v2 PaymentRequired, payable in Base USDC, and catalog-ready (bazaar discovery declaration + facilitator support).

Verify a Base (mainnet, default) or Base Sepolia transaction is a successful, confirmed transfer of native Circle USDC (not a look-alike token) to an expected recipient for an exact or minimum amount. Checks receipt status, canonical block, confirmations, optional payer, notBefore/maxAge windows; returns verdict valid|invalid|pending|not_found with machine-readable reasons and the matched Transfer

One-call verdict for an ERC-20 token on Base: risk (incl. holder concentration) + rug-pull + momentum + contract flags, verdict avoid/high_risk/caution/low_risk and a one-line English summary · Pay per call: $0.01 — or starter pack: 40 credits = 20 calls for $0.02 (valid 7 days): https://token-verdict.restockalarm.workers.dev/v1/starter-pack