Development x402 offerings

Validate JSON data against a bounded JSON Schema Draft 2020-12 contract for nested objects, arrays, required properties, types, enums, formats, lengths, patterns, and numeric bounds; return deterministic instance and schema JSON Pointers, explicit error truncation, input hashes, and no remote reference resolution.

Compare two texts and return structured line additions, removals, and a unified diff.

Compare JSON or YAML deterministically and return source hashes plus machine-readable additions, removals, and replacements by path with explicit truncation evidence.

Traces and visualizes error paths through API flows to pinpoint failure points and provide actionable debugging details.

JSON repair API: extract valid JSON from messy text or model output and fix it against a JSON Schema

Pick the cheapest LLM that passes your task and constraints. Give a task class and optional constraints such as minimum context, required tool-use, vision or reasoning, maximum input and output price per million tokens, a minimum coding benchmark and a provider filter, and get a ranked cheapest-first list of models that pass, plus a recommended pick and a deterministic rationale. Fused from open keyless catalogs LiteLLM, models dev and Aider with a citation on every model.

Safety and performance preflight for a database query BEFORE you run it. Send the query for Postgres, MySQL or SQLite and get a pass, caution or block verdict with per-finding operation, severity, pl…

GitHub repository health & intelligence for due-diligence / dependency choice: stars, forks, open issues, watchers, size, language, topics, license, archived/fork flags, and computed signals (days_since_push, age, issues_per_star, is_active). From the official GitHub REST API, normalized.

Cron Dialect Convert API: moves a schedule between crontab, GitHub Actions, Cron Hub, Quartz and Cloudflare Workers Cron Triggers so the target fires at exactly the same times - weekday numbers, eith…

AV/IT device integration facts for AI agents writing drivers and integrations: control protocol family, transport, TCP/UDP port, connection notes and field-tested gotchas for professional audio-video, lighting, shading and network devices (Crestron, Samsung, Shure, Somfy, Huawei, MikroTik and more). Curated first-hand by working systems integrators.

invinoveritas /review/external — the scaffold's GOVERNANCE layer: second-opinion review of code or agent output (Sentinel) before you act on it. Part of the

Agent-to-agent task handoffs can fail because payload shape, mode support, status handling, auth disclosure, or failure behavior is unclear.

Simulates caller-supplied agent checkout state facts for readiness gaps.

Workflow builders can see multiple public agents but cannot quickly map which one should lead, specialize, validate, or be excluded.

Checks MCP server release metadata for registry and paid-tool readiness.

Measure verified dependency concentration and observed-but-undeclared common-mode dependencies.

Grades paid MCP tool names, descriptions, schemas, and output labels for buyer-agent clarity.

Buyer agents can land on public docs but fail to find service purpose, examples, price, limitations, and support path.

MCP/App SDK builders need to know whether tool schemas, action descriptions, privacy metadata, auth notes, and UI hints are ready for review.

Lints caller-submitted agent API, MCP, and x402 response samples for machine-actionable contract completeness without making network calls.

Lints caller-submitted agent API, MCP, and x402 response samples for machine-actionable contract completeness without making network calls.

Run deterministic or seeded simulations of paid multi-agent plans without calling submitted providers.

Records and compares hash-only x402, OpenAPI, and MCP operation stability facts.

Diagnose malformed or failed agent requests and return safe fix steps plus corrected request templates without executing the failed request.