402x402Hub

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

200
Tracked services
200
Verified
82
Median Trust
0
Free services

Top 20 by Trust Score

#1

AX1 Console

api✓ verified

Send 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.

· base· paid· $0.02
A+100
#2

StableEnrich

api✓ verified

Exa Search - Neural search across the web

· base· paid· $0.01
A+100
#3

Exa

api✓ verified

Exa /search endpoint

· base· paid· $0.007
A+98
#4

StableEnrich

api✓ verified

Exa Contents - Retrieve content from URLs

· base· paid· $0.002
A+98
#5

SolEnrich

api✓ verified

Trailing 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.

· solana· paid· $0.005
A+97
#6

BlockRun.AI

api✓ verified

Get an AI-generated answer to a question grounded in live web search results.

· base· paid· $0.011
A+97
#7

StableTravel

api✓ verified

Search cached Seats.aero award availability by origin, destination, dates, cabin, carriers, and pagination.

· base· paid· $0.02
A+97
#8

svm402-service

api✓ verified

Current 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

· solana· paid· $0.01
A+97
#9

BlockRun.AI

api✓ verified

Extract full text content from specific URLs. Priced at $0.002/URL — total = urls.length × $0.002.

· base· paid· $0.003
A+95
#10

BlockRun.AI

api✓ verified

Neural and keyword web search. Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report.

· base· paid· $0.011
A+94
#11

svm402-service

api✓ verified

Full 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

· solana· paid· $0.03
A+94
#12

StableEnrich

api✓ verified

FullEnrich 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.

· base· paid· $0.15
A+93
#13

Google Trends SEO Keyword Data

api✓ verified

Google Trends interest over time for a keyword — worldwide search popularity as a monthly series for keyword research, SEO & demand trend analysis.

· base· paid· $0.05
A+93
#14

ReadX

api✓ verified

Search for tweets by query (optional product filter; paginate with cursor). Example: GET /api/search/tweets?q=typescript

· base· paid· $0.01
A+93
#15

Nansen

api✓ verified

Get Address Current Balance Data

· base· paid· $0.01
A+93
#16

StableEnrich

api✓ verified

PDL 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.

· base· paid· $0.28
A+93
#17

Gondola

api✓ verified

OpenAI-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.

· base· paid· $0.01
A+93
#18

Twitter/X API

api✓ verified

Search 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.

· base· paid· $0.006
A+92
#19

Satellite & GeoRisk x402 API

api✓ verified

Agent-ready satellite observations for any coordinates. Returns PNG image URLs and scene metadata for true color, vegetation, water, thermal, or radar analysis.

· base· paid· $0.025
A+92
#20

svm402-service

api✓ verified

Discover 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

· solana· paid· $0.01
A+92

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.