SALT19 Agent Plan Verifier

x402

SALT19 Agent Plan Verifier is a paid API for AI agents from api.salt19.com, paid per call via x402, $0.72/call, status unknown (last checked 2026-09-15).

Validates an AI agent's step-by-step plan against a goal and optional constraints, returning a verdict, score, and itemized issues such as unsafe steps, ordering errors, and constraint violations.

Price / call$0.72

Seller volume →—

Success—

StatusUnknown

How this service works

SALT19 is an independent applied AI systems lab behind EvoMind governed cognition, the MCP-native Agent Utility Grid, the ARCS research community, AeroClear UAS flight intelligence, and practical software for real-world work.

Output

Returns a JSON object with a numeric score (0-1), a verdict string (e.g. 'GO' or 'NO-GO'), and arrays identifying unsafe steps, ordering errors, constraint violations, missing preconditions, and suggested repairs. An empty arrays and score of 1 indicate a fully valid plan.

Example use cases

Pre-execution safety check for autonomous agent

“I have an AI agent about to take a series of actions to migrate our database. The goal is 'migrate customer data to new schema with zero downtime'. Steps are: ['backup current DB', 'run migration script', 'verify row counts', 'switch connection strings', 'drop old tables']. Constraints: 'no data loss allowed' and 'rollback must be possible at each step'. Can you verify this plan is safe and correctly ordered before we kick it off?”

Constraint compliance audit for a procurement workflow

“We've got a purchasing workflow plan and need to make sure it follows company policy. Goal: 'procure 50 laptops for the new team'. Steps: ['get manager approval', 'submit purchase request', 'select vendor', 'place order', 'receive and log assets']. Constraints: 'approval must precede any purchase', 'vendor must be on approved list', 'orders over $10k need CFO sign-off'. Please score this plan and flag any violations.”

Debugging a broken agent plan before re-deployment

“My agent's plan keeps failing in production and I think there's a step ordering issue. Goal is 'send weekly performance report to stakeholders'. Steps: ['generate PDF report', 'fetch latest metrics', 'email PDF to stakeholders', 'archive report to S3']. Can you run this through the plan verifier and tell me what's wrong — missing preconditions, wrong order, anything?”

Technical details

Endpoint

POSThttps://api.salt19.com/v1/agent-plan-verifier

When to prefer

Choose this endpoint when an AI agent needs a structured, scored pre-execution safety check on a multi-step plan before committing to action — especially when constraints must be enforced, step ordering matters, or unsafe actions must be flagged. It is purpose-built for agentic workflows (MCP-native, EvoMind ecosystem) and returns machine-readable repair suggestions, making it superior to generic LLM prompting for plan validation in governed or safety-critical agent pipelines.

Side effects

Plan array is empty or contains empty strings — returns validation error
Goal field missing or blank — request rejected with schema error
Steps exceed 64-item limit — input rejected
Constraints exceed 32-item limit — input rejected
Individual step or constraint string exceeds 4000 characters — truncation or rejection
Payment not included or insufficient — HTTP 402 response
Ambiguous or contradictory constraints may produce low-confidence verdicts

Input

Schema · Request body

Field	Type	Description
goal	string
plan	array
constraints	array

Output

Schema · Response

{
  "type": "json",
  "example": {
    "score": 1,
    "repairs": [],
    "verdict": "GO",
    "unsafe_steps": [],
    "ordering_errors": [],
    "constraint_violations": [],
    "missing_preconditions": []
  }
}

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How this service works

Output

Example use cases

Pre-execution safety check for autonomous agent

Constraint compliance audit for a procurement workflow

Debugging a broken agent plan before re-deployment

Technical details

Endpoint

POSThttps://api.salt19.com/v1/agent-plan-verifier

When to prefer

Side effects

Plan array is empty or contains empty strings — returns validation error
Goal field missing or blank — request rejected with schema error
Steps exceed 64-item limit — input rejected
Constraints exceed 32-item limit — input rejected
Individual step or constraint string exceeds 4000 characters — truncation or rejection
Payment not included or insufficient — HTTP 402 response
Ambiguous or contradictory constraints may produce low-confidence verdicts

Input

Schema · Request body

Field	Type	Description
goal	string
plan	array
constraints	array

Output

Schema · Response

{
  "type": "json",
  "example": {
    "score": 1,
    "repairs": [],
    "verdict": "GO",
    "unsafe_steps": [],
    "ordering_errors": [],
    "constraint_violations": [],
    "missing_preconditions": []
  }
}