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x402 Agent Tools

https://x402-agent-tools.x402agenttools.workers.dev/v1/extract
● healthy model-context-protocol-mcp

Pay-per-call web, Base onchain and crypto-alert tools for agents. USDC on Base via x402, no API key.

Category
model-context-protocol-mcp
Chains
base
Price
$0.0400 USDC / call

Quality grade

How grading works
B 57.9 / 100
Availability 20.0 / 20
Endpoint responded (HTTP 200)
Payability 15.0 / 15
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✓ Payment address on record
  • ✓ Settlement network declared
  • ✓ Price declared
Demand 0.0 / 35
0 distinct payers, 0 USDC transfers in the last 30 days
Performance 9.9 / 10
Last probe answered in 218 ms (full marks at 200 ms or less)
Readiness 13.0 / 15
Agent readiness 87/100
Owner verified 0.0 / 5
Nobody has claimed this listing yet
Endpoint last checked 18 h ago. On-chain activity last read 34 h ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass. This grade sets search order and leaderboards; the readiness score below is shown for reference only.

x402 readiness

B · 87/100

Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here B, 57.9/100), which weighs availability, payability and on-chain demand. How the two differ

Valid payment requirements 10/10 Payment requirements carry a payee, a mainnet network and a price.
Live 402 challenge 20/25 Endpoint reachable; its 402 challenge was seen earlier (218 ms).
x402 version n/a x402 version not observed yet.
Signed descriptor n/a No x402 standard defines a signed descriptor.
Uptime (30 days) 15/15 10/10 probes succeeded over 30 days (100%).
Resource declaration 10/10 Declares 9 paid resource(s).
Verified identity 5/10 Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Freshness + modern flags 5/5 seen in a source within 7 days; declares x402.
Security declaration n/a Payment is the access control for an x402 resource.
Applicable criteria total 75 points, scaled to 100.
Responsiveness: Responsive (218 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).
Payment evidence: x402_challenge — We sent a request and got a live HTTP 402 challenge. Also: x402_manifest. Qualifies the payment claim; adds no points.
Measured 2026-11-11.
Nine criteria, the same as the A2A readiness score, read from our daily probe of the paid endpoint, its payment requirements and 30-day probe history. Signed descriptor and security declaration are n/a for x402 (payment is the access control), as is an x402 version we have not observed; the remaining points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. It also feeds 15 points of the x402 quality grade.

Compared with peers

Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.

Readiness
Higher than 75% of peers
This listing 87 · peer median 78
Latency
Faster than 47% of peers
This listing 218 ms · peer median 205 ms

Where it loses the most points, and how to win them back

  • Live 402 challenge −5 — Answer the paid path with a valid 402 challenge.
    Now: Endpoint reachable; its 402 challenge was seen earlier (218 ms).
  • Verified identity −5 — Claim the listing and prove control of its domain.
    Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.

How many agent tools actually work · All statistics

Paid endpoints

9 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

GET https://x402-agent-tools.x402agenttools.workers.dev/v1/markdown

Any public web page URL -> clean Markdown (Readability + Turndown). Returns {url,title,byline,length,markdown}.

GET https://x402-agent-tools.x402agenttools.workers.dev/v1/extract

Structured JSON extraction from a web page: title, meta/OpenGraph, JSON-LD, headings, links, tables, contact emails, plus Markdown body.

GET https://x402-agent-tools.x402agenttools.workers.dev/v1/crawl

Same-origin multi-page crawl (up to 10 pages, breadth-first) returning Markdown for each page.

GET https://x402-agent-tools.x402agenttools.workers.dev/v1/token-risk

Base mainnet token/contract risk check via public RPC: ERC-20 metadata, owner, EIP-1967 proxy, risky bytecode selectors (mint/blacklist/pause/fee setters), heuristic risk score.

GET https://x402-agent-tools.x402agenttools.workers.dev/v1/token-price

Current USD price of a Base token by contract address (GeckoTerminal, fallback DefiLlama), with 24h change, volume, liquidity/FDV where available.

GET https://x402-agent-tools.x402agenttools.workers.dev/v1/wallet-profile

Base wallet profile via public RPC: ETH and USDC balances, nonce (tx count), contract-or-EOA, recent USDC transfers (last ~10k blocks).

GET https://x402-agent-tools.x402agenttools.workers.dev/v1/fx

Fiat exchange rates (ECB reference rates via frankfurter.app), latest or historical.

GET|POST https://x402-agent-tools.x402agenttools.workers.dev/v1/alerts/pass

7-day access pass to the crypto/market alerts feed. Returns an HMAC-signed Bearer token for GET /v1/alerts?since=. Informational data only, not investment advice.

GET https://x402-agent-tools.x402agenttools.workers.dev/v1/alerts/latest

One-shot: latest factual market alerts (symbol, time, signal type, price, % move, timeframe, source). Informational data only, not investment advice.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X GET https://x402-agent-tools.x402agenttools.workers.dev/v1/extract  # expect HTTP 402 Payment Required (about 0.04 USDC/call)
MCP endpoint
https://x402-agent-tools.x402agenttools.workers.dev/mcp
/.well-known/x402.json
https://x402-agent-tools.x402agenttools.workers.dev/.well-known/x402

Listed in

Directories this entry was found in.

mcp since 2026-11-03