YourAITools ToolPick – x402 AI API Directory Search

x402

YourAITools ToolPick – x402 AI API Directory Search is a paid API for AI agents from api.youraitools.co, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-24).

Searches a curated directory of 300+ AI tools, APIs, and agents payable via x402 (USDC on Base/Solana) and returns ranked, live-verified matches for a stated capability need.

Price / call$0.01

Seller volume →—

Success—

StatusUnknown

How this service works

API finder for AI agents (live-checked). Pick the paid x402 API to call: top 10 ranked resources for your need (relevance, 30-day payers and calls, recency, price; filters), a live check of the top 5 (one unpaid request each, 3 s timeout: 402 with x402 terms, live price and networks, matches the listing?), the best verified pick, the cheapest verified alternative and category price stats. Fail-closed: a failed check is never called verified; none verified means best_pick null, low confidence.

Output

A JSON object containing: matched API endpoints ranked by relevance and usage score, each with host, service name, resource URL, HTTP method, price in USD, supported networks, 30-day call count, payer count, live-check status (latency, HTTP status, x402 version, live price), and a 'best_pick' object highlighting the top recommended endpoint with reasoning. Also includes aggregate stats (total hosts, price percentiles, estimated revenue), applied filters, index freshness, and a confidence rating.

Example use cases

Discover cheapest crypto-payable search API

“I need a web search API I can pay for with USDC — show me what's available on Base or Solana for under half a cent per call, and only ones with real paying users.”

Agent self-selects a PDF-to-text tool

“My agent needs to convert PDFs to text and pay per call using crypto. Find me the top-ranked x402 endpoints for PDF extraction that are live and verified, payable on any network.”

Find token safety analysis APIs for Solana

“What crypto-payable APIs can check Solana token safety or detect rug pulls? Show me options on the Solana network with at least 5 unique payers in the last month.”

Technical details

Endpoint

GEThttps://api.youraitools.co/toolpick/v1/pick?utm_source=zero.xyz

When to prefer

Use this endpoint when an AI agent needs to dynamically discover which x402-compatible APIs exist for a given capability and wants to pay per call in USDC on Base, Solana, or other supported chains. It is uniquely suited for agent-to-agent orchestration where the agent must self-select a downstream tool at runtime, rather than having a hardcoded API dependency. Prefer this over general API marketplaces when crypto-native payment (x402 protocol) and live-verification of endpoint status are required.

Side effects

No matches found for an obscure or overly specific 'need' query — returns empty results array
Stale index if refreshed_at is old — results may not reflect recently added or removed endpoints
Live check failures if endpoint is temporarily down — verified_live may be false for otherwise valid APIs
Network filter too restrictive — limiting to a rare network may return zero results
min_payers threshold too high — filters out newly listed but functional APIs
Price cap too low — eliminates most available endpoints

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "need": "web search",
    "tier": "pick",
    "hosts": 236,
    "index": {
      "age_s": 600,
      "stale": false,
      "refreshed_at": "2026-10-23T12:59:10.247Z"
    },
    "stats": {
      "hosts": 236,
      "calls_30d": 64331,
      "price_usd": {
        "max": 0.02,
        "min": 0.001,
        "p25": 0.003,
        "p75": 0.01,
        "median": 0.01
      },
      "resources": 700,
      "priced_resources": 700,
      "est_revenue_30d_usd": 555.82,
      "price_with_buyers_usd": {
        "p25": 0.003,
        "p75": 0.01,
        "median": 0.00625,
        "payer_weighted_median": 0.01
      },
      "hosts_with_3plus_payers": 125
    },
    "terms": [
      "web",
      "search"
    ],
    "filters": {
      "network": "any",
      "max_price": 0.02,
      "min_payers": 0
    },
    "matches": 700,
    "results": [
      {
        "host": "api.exa.ai",
        "rank": 1,
        "score": 4.843,
        "method": "POST",
        "service": "Exa",
        "networks": [
          "base",
          "solana"
        ],
        "resource": "https://api.exa.ai/search",
        "calls_30d": 6614,
        "price_usd": 0.007,
        "relevance": 0.85,
        "indexed_on": [
          "cdp"
        ],
        "live_check": {
          "ms": 363,
          "status": "live",
          "http_status": 402,
          "x402_version": 2,
          "live_networks": [
            "base",
            "solana"
          ],
          "live_price_usd": 0.007,
          "price_matches_index": true
        },
        "payers_30d": 92,
        "description": "Exa /search endpoint",
        "repeat_buyers": true,
        "verified_live": true,
        "last_called_at": "2026-10-23T11:14:01.000Z"
      },
      {
        "host": "agent.pocket.network",
        "rank": 2,
        "score": 4.215,
        "method": "POST",
        "service": "Pocket Network",
        "networks": [
          "base"
        ],
        "resource": "https://agent.pocket.network/v1/agentsearch-web-search-v1",
        "calls_30d": 2843,
        "price_usd": 0.005,
        "relevance": 1,
        "indexed_on": [
          "cdp"
        ],
        "live_check": {
          "ms": 510,
          "status": "live",
          "http_status": 402,
          "x402_version": 2,
          "live_networks": [
            "base"
          ],
          "live_price_usd": 0.005,
          "price_matches_index": true
        },
        "payers_30d": 13,
        "description": "Web search built for agents, served over Pocket Ne",
        "repeat_buyers": true,
        "verified_live": true,
        "last_called_at": "2026-10-23T12:06:00.000Z"
      }
    ],
    "best_pick": {
      "why": "highest-ranked candidate that answered 402 with matching x402 terms in the live check",
      "rank": 1,
      "method": "POST",
      "service": "Exa",
      "networks": [
        "base",
        "solana"
      ],
      "resource": "https://api.exa.ai/search",
      "price_usd": 0.007,
      "payers_30d": 92
    },
    "checked_at": "2026-10-23T13:09:10.247Z",
    "confidence": "high",
    "disclaimer": "Rankings use public x402 index metadata and the index-reported 30-day call and payer counts; listings are self-described by sellers and are not endorsements. A live check only shows that an endpoint answers with x402 payment terms right now, not that its data is good or that the seller is safe. Check terms before paying. ToolPick never pays, holds funds or keys.",
    "sources_failed": [],
    "cheapest_verified": {
      "rank": 5,
      "service": "web-news",
      "resource": "https://api.agentstools.dev/search/news",
      "price_usd": 0.003
    }
  }
}

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