Trust Board for x402 API & MCP Services
x402Hub is a directory that independently verifies x402 API and MCP services and ranks them by a neutral, algorithmic Trust Score. Find and compare tools for AI agents by trust, price, and network. Data is sourced from Coinbase Bazaar and refreshed hourly.
Last updated: 2026-10-09
Top 20 by Trust Score
AX1 Console
api✓ verifiedSend a Base token contract address, get an AI-written verdict: onchain metrics, a plain-language take, and a shareable verdict card. Entertainment, not trading advice.
StableEnrich
api✓ verifiedExa Search - Neural search across the web
Exa
api✓ verifiedExa /search endpoint
StableEnrich
api✓ verifiedExa Contents - Retrieve content from URLs
SolEnrich
api✓ verifiedTrailing 7d, 30d, and lifetime holder yield: rewards distributed in the quote asset, priced in USD, divided by average market cap over the window (daily snapshots). Annualized with an explicit caution flag when the window is under 7 days or partial. Returns quote_exposure — what a holder is economically long (the coin + the quote asset) and the reward asset.
BlockRun.AI
api✓ verifiedGet an AI-generated answer to a question grounded in live web search results.
StableTravel
api✓ verifiedSearch cached Seats.aero award availability by origin, destination, dates, cabin, carriers, and pagination.
svm402-service
api✓ verifiedCurrent price and liquidity data for a Solana token given its mint address, sourced from Jupiter and Helius. Call this for a quick, cheap market quote when you do not need the full analysis. — $0.01 USDC
BlockRun.AI
api✓ verifiedExtract full text content from specific URLs. Priced at $0.002/URL — total = urls.length × $0.002.
BlockRun.AI
api✓ verifiedNeural and keyword web search. Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report.
svm402-service
api✓ verifiedFull analysis of a Solana token given its mint address — current price, liquidity, safety risk score, honeypot check, and top-holder concentration. Call this when you need a complete due-diligence report on one token. — $0.03 USDC
StableEnrich
api✓ verifiedFullEnrich People Search — filter by company domain/name/LinkedIn URL, seniority, title, location, skills, and 20+ FullEnrich filters. Default lean roster: companies map + company_id refs; include_employment_history or verbose for full history. $0.15 when results found; free when no matches.
Google Trends SEO Keyword Data
api✓ verifiedGoogle Trends interest over time for a keyword — worldwide search popularity as a monthly series for keyword research, SEO & demand trend analysis.
ReadX
api✓ verifiedSearch for tweets by query (optional product filter; paginate with cursor). Example: GET /api/search/tweets?q=typescript
Nansen
api✓ verifiedGet Address Current Balance Data
StableEnrich
api✓ verifiedPDL Person Enrich — career history, emails, phone. Requires one of: `email`, `profile` (LinkedIn URL), or `first_name` + `last_name` + (`company_name` OR `company_domain`). `{ first_name, last_name }` alone returns 400. Prefer `email` when known, then `profile`. No match: HTTP 200, status 404, data null — not billed. Match: $0.28.
Gondola
api✓ verifiedOpenAI-compatible chat completions across the Venice AI model catalog. Pay per request in USDC on Base via x402, with no account and no API key. Overpayment is never lost: it banks as reusable wallet credit for your next call. Model ids and live prices: GET https://api.gondola-ai.com/v1/models.
Twitter/X API
api✓ verifiedSearch Twitter/X with structured filters or raw advanced-search syntax. Returns up to 20 normalized tweets with full text, author details, engagement metrics and a pagination cursor.
Satellite & GeoRisk x402 API
api✓ verifiedAgent-ready satellite observations for any coordinates. Returns PNG image URLs and scene metadata for true color, vegetation, water, thermal, or radar analysis.
svm402-service
api✓ verifiedDiscover newly active Solana tokens ranked by genuine organic activity, filtered to exclude wash trading. Optionally filter by minimum organic score and holder count. Call this to find tokens worth researching further with /analyze or /safety. — $0.01 USDC
For AI agents
Query x402Hub directly. Search services by Trust Score, price, verification, and network — filters Coinbase Bazaar does not offer.
- MCP server (recommended)
- https://x402.chain-ops.xyz/mcp
- Streamable HTTP · tool: search_services
- REST Discovery API
- https://x402.chain-ops.xyz/api/discovery/search
Free · rate limit 60 requests/min per IP.
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Frequently asked questions
What is x402?
x402 is an open payment protocol that uses HTTP 402 (Payment Required) to let AI agents pay for APIs with stablecoins (USDC) — no API keys or subscriptions. It is led by Coinbase and governed by the Linux Foundation x402 Foundation.
How is the x402Hub Trust Score calculated?
The x402Hub Trust Score is not based on user reviews. It is an algorithmic score combining our own verification (HTTPS, live x402 protocol check), real usage, recency, and metadata completeness. Missing signals are excluded and the rest renormalized, producing a 0–100 score with an A+ to F grade.
How is x402Hub different from Coinbase Bazaar?
Bazaar lists x402 services but does not expose a trust metric. x402Hub independently verifies each service, assigns a neutral Trust Score, and lets you filter by trust, price, and network.
Can AI agents query x402Hub directly?
Yes. x402Hub exposes an MCP server at https://x402.chain-ops.xyz/mcp (Streamable HTTP) with a search_services tool, plus a REST Discovery API (https://x402.chain-ops.xyz/api/discovery/search) that returns JSON filtered by capability, minimum Trust Score, max price, and network. Both are free, rate-limited to 60 requests per minute per IP.