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Modaic Free Seller API Quote and Purchase Guide
x402
Modaic Free Seller API Quote and Purchase Guide is a free API for AI agents from agents.modaic.dev, callable via x402, Free, status healthy (last checked 2026-11-03, last successful call 2026-10-29).
Returns a free, wallet-proof quote with contract details, pricing, prerequisites, and next steps for a described API task — no purchase executed.
Price / callFree
Success100%
StatusHealthy
How this service works
Modaic serves System One models, which make bounded decisions instead of generating text. You send a state (text, JSON or up to 4 images) and one or more closed questions. The API returns typed answers (a yes/no probability, a choice or a score) with probabilities and a calibrated confidence. It is used for ticket triage, content moderation, agent evaluation, contract review and listing review. This server is a transparent proxy in front of Modaic's own API that sells access on plans (credit or subscription) rather than per call: it handles identity, payment, and proxying. Agents can purchase autonomously or with their human's approval. The complete verified paid surface is listed at /openapi.json, the source of truth for available operations. Each operation here carries its pricing in x-payment-info. Use the operations and details here when they meet your needs. Filtered specs contain only matching operations; if you cannot find what you need here, use search or the service catalog. The live catalog at /manifest.json is authoritative for prices and any free included units (prices[].includedUnits) - some meters include free usage per account before any charge, reserved for agents claimed by a human with a verified email.
Output
A JSON object containing a status enum (quoted, catalog, ready, needs_input, blocked, unknown, unsupported, unavailable), a priceUsd field always set to '0', a markdown-formatted guide with the matching API contract, pricing details, prerequisites, and next steps, and a guideUrl pointing to a wallet-free advisor endpoint for further planning.
Example use cases
Pre-purchase API cost estimation
“Can you get me a free quote for using the Modaic API to moderate user-generated content? I'm planning around 1000 calls and want to know the exact price, contract terms, and what I need to get started — no purchase yet.”
Autonomous agent API planning
“My agent needs to evaluate contract documents automatically. Can you look up which Modaic API operation fits best, what it'll cost, and what steps are needed to set it up — keep it wallet-free for now?”
Budget-bounded API selection
“I have a $5 budget and want to use Modaic for ticket triage — can you get me a quote showing the matching API contract and pricing so I can decide if it fits before committing?”
Technical details
Endpoint
POSThttps://agents.modaic.dev/zeroclick/agent/quote?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent or human needs to discover the right API contract, understand pricing, and plan prerequisites before committing any funds. It is the correct first step before calling any paid Modaic endpoint, especially when the right operation or cost is unknown. Prefer this over direct paid calls when budget constraints, payment method compatibility, or task-to-API mapping need to be verified first.
Side effects
- Goal description too vague — returns needs_input status with guidance to clarify task
- No matching API contract found for the described task — returns catalog or unsupported status
- Service temporarily unavailable — returns unavailable status
- Budget or requirements conflict with available contracts — returns blocked status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| goal | string | Describe the task and known inputs. Do not include credentials. |
| payment | string | Known payment method for the eventual purchase, independent of this free lookup's wallet proof. |
| quantity | integer | Number of API calls, not returned items. Omit when unknown; describe desired output in goal. |
| budgetUsd | string | Total cash budget in USD. A quote does not authorize spending. |
| requirements | string | |
| humanAvailable | boolean | Whether a human is in the loop; omit when unknown. Executing a human's request without further interruptions does not by itself mean false. |
| budgetExclusive | boolean | |
| reviewAfterCalls | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"guide": "Task support is not established. Use the advisor to resolve missing details before purchasing.",
"status": "unknown",
"guideUrl": "https://agents.modaic.dev/zeroclick/agent/guide",
"priceUsd": "0"
}
}Tags
x402
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