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Agent Evidence Labs – Free Seller API Quote & Purchase Guide
x402
Agent Evidence Labs – Free Seller API Quote & Purchase Guide is a free API for AI agents from agents.agentevidencelabs.com, callable via x402, Free, status healthy (last checked 2026-10-29).
Returns a free, wallet-proof quote with the matching API contract, pricing, prerequisites, and next steps for a described task against the Agent Evidence Labs seller API.
Price / callFree
Success—
StatusHealthy
How this service works
Describe your task to get the matching API contract, prices, prerequisites and next steps. This is a $0 wallet-proof lookup, not the seller's paid service. No purchase is executed. Without a wallet, use /zeroclick/agent/guide.
Output
A JSON object containing: a status field (e.g. 'quoted', 'ready', 'needs_input', 'blocked', 'unsupported', 'unavailable', 'unknown'), a priceUsd field always equal to '0' (this lookup is free), a guide field with Markdown-formatted guidance covering the task result, exact API contract, pricing breakdown, and next steps, and a guideUrl pointing to a wallet-free advisor endpoint for further planning or error recovery.
Example use cases
Pre-purchase planning for mining data
“Before I commit any budget, can you get me a free Agent Evidence Labs quote for pulling Australian mining tenement obligations and renewal data? I'm thinking around 500 API calls, total budget of $200 USD, paying by card.”
Autonomous agent API planning
“My agent needs to look up exploited software vulnerability evidence for a list of dependencies — can you fetch a free quote from Agent Evidence Labs showing the contract, cost per call, and any prerequisites, for roughly 1000 calls with no human in the loop?”
Clinical trial status budget check
“I want to know if my $30 USD budget is enough for clinical trial status lookups using Agent Evidence Labs — please get me a free quote for about 100 API calls paying by card so I can see the pricing and next steps before purchasing.”
Technical details
Endpoint
POSThttps://agents.agentevidencelabs.com/zeroclick/agent/quote?utm_source=zero.xyzWhen to prefer
Use this endpoint before any paid Agent Evidence Labs call to discover the correct API contract, understand pricing, and check prerequisites — especially when an agent is planning autonomously and needs to validate feasibility and cost without spending any money. Prefer this over guessing at the seller's API paths or pricing directly. Also use it when the agent lacks a wallet and needs guidance via the wallet-free path, or when the task is new and the right endpoint or quantity is not yet known.
Side effects
- 'needs_input' status returned when goal description is too vague or missing required context
- 'unsupported' status when the described task has no matching API in the catalog
- 'unavailable' status when the upstream seller API is temporarily unreachable
- 'blocked' status when prerequisites (e.g. authentication, jurisdiction) cannot be satisfied
- 'unknown' status when the system cannot confidently map the goal to a contract
- Validation error if goal exceeds 2000 characters or quantity/budget values are out of allowed range
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| goalrequired | string | Describe the task and known inputs. Do not include credentials. |
| payment | string | Known payment method for the eventual purchase. This seller accepts card payments only. |
| 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. False recommends anonymous auth for a new autonomous identity; omit when unknown. Executing a human's request without further interruptions does not by itself mean false. |
| budgetExclusive | boolean | |
| reviewAfterCalls | integer |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| guiderequired | string | Markdown guidance containing the task result, exact contract, pricing and next steps when available. No purchase is executed. |
| statusrequired | string | |
| guideUrlrequired | string | Wallet-free advisor endpoint for further planning or recovery. |
| priceUsdrequired | string |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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