Fatstack

Name: Fatstack
Author: net.fatstack

MCP serverMCP

Paid MCP tools behind one endpoint. Agents pay per call in USDC on Base via x402.

by net.fatstackrepository ↗homepage ↗v1.0.0

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Observed by Wellknown

Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability90/90 checks ok

when	check	result	http	latency	detail
2 h ago	mcp initialize	ok	200	143 ms	server fatstack 1.0.0 · protocol 2025-06-18 · 15 tools
8 h ago	mcp initialize	ok	200	220 ms	server fatstack 1.0.0 · protocol 2025-06-18 · 15 tools
15 h ago	mcp initialize	ok	200	156 ms	server fatstack 1.0.0 · protocol 2025-06-18 · 15 tools
21 h ago	mcp initialize	ok	200	150 ms	server fatstack 1.0.0 · protocol 2025-06-18 · 15 tools
27 h ago	mcp initialize	ok	200	390 ms	server fatstack 1.0.0 · protocol 2025-06-18 · 15 tools
34 h ago	mcp initialize	ok	200	150 ms	server fatstack 1.0.0 · protocol 2025-06-18 · 15 tools
2 d ago	mcp initialize	ok	200	146 ms	server fatstack 1.0.0 · protocol 2025-06-18 · 15 tools
2 d ago	mcp initialize	ok	200	133 ms	server fatstack 1.0.0 · protocol 2025-06-18 · 15 tools
2 d ago	mcp initialize	ok	200	168 ms	server fatstack 1.0.0 · protocol 2025-06-18 · 15 tools
3 d ago	mcp initialize	ok	200	390 ms	server fatstack 1.0.0 · protocol 2025-06-18 · 15 tools

Tools observed via MCP handshake

fatstack__free_demo — **FREE DEMO — $0.00, no wallet, no payment.** First-party tool served by Fatstack itself, not a marketplace listing. Call it to confirm your MCP client is wire
echo__echo_json — $0.001000 USDC per call on eip155:8453, paid directly to the provider (0x69ad5fb5de6dcdbd8a025374ab7bb23996a69fd9). Payments are final. Once settled on-chain th
json-schema-validate__json_schema_validate — $0.001000 USDC per call on eip155:8453, paid directly to the provider (0x69ad5fb5de6dcdbd8a025374ab7bb23996a69fd9). Payments are final. Once settled on-chain th
html-to-markdown__html_to_markdown — $0.001000 USDC per call on eip155:8453, paid directly to the provider (0x69ad5fb5de6dcdbd8a025374ab7bb23996a69fd9). Payments are final. Once settled on-chain th
url-metadata__url_metadata — $0.010000 USDC per call on eip155:8453, paid directly to the provider (0x69ad5fb5de6dcdbd8a025374ab7bb23996a69fd9). Payments are final. Once settled on-chain th
csv-to-json__csv_to_json — $0.001000 USDC per call on eip155:8453, paid directly to the provider (0x69ad5fb5de6dcdbd8a025374ab7bb23996a69fd9). Payments are final. Once settled on-chain th
text-language-detect__text_language_detect — $0.000500 USDC per call on eip155:8453, paid directly to the provider (0x69ad5fb5de6dcdbd8a025374ab7bb23996a69fd9). Payments are final. Once settled on-chain th
regex-test__regex_test — $0.000500 USDC per call on eip155:8453, paid directly to the provider (0x69ad5fb5de6dcdbd8a025374ab7bb23996a69fd9). Payments are final. Once settled on-chain th
unit-convert__unit_convert — $0.000500 USDC per call on eip155:8453, paid directly to the provider (0x69ad5fb5de6dcdbd8a025374ab7bb23996a69fd9). Payments are final. Once settled on-chain th
cron-explain__cron_explain — $0.000500 USDC per call on eip155:8453, paid directly to the provider (0x69ad5fb5de6dcdbd8a025374ab7bb23996a69fd9). Payments are final. Once settled on-chain th
uuid-batch__uuid_batch — $0.000500 USDC per call on eip155:8453, paid directly to the provider (0x69ad5fb5de6dcdbd8a025374ab7bb23996a69fd9). Payments are final. Once settled on-chain th
markdown-lint__markdown_lint — $0.001000 USDC per call on eip155:8453, paid directly to the provider (0x69ad5fb5de6dcdbd8a025374ab7bb23996a69fd9). Payments are final. Once settled on-chain th
askzephy-quick-scan__sol_audit — $0.005000 USDC per call on eip155:8453, paid directly to the provider (0xf4729bec220090ef08c786e9142898354178771e). Payments are final. Once settled on-chain th
askzephy-quick-scan__sol_quick_scan — $0.005000 USDC per call on eip155:8453, paid directly to the provider (0xf4729bec220090ef08c786e9142898354178771e). Payments are final. Once settled on-chain th
askzephy-quick-scan__google_news_feed — $0.005000 USDC per call on eip155:8453, paid directly to the provider (0xf4729bec220090ef08c786e9142898354178771e). Payments are final. Once settled on-chain th

Provenance

Where this record came from

Every source is kept verbatim. Field changes are logged as events.

Official MCP Registrynet.fatstack/registry

first seen 24 d ago · fetched 31 h agoopen ↗

Field history (7 recent events)

24 d ago · declared · summary → "Paid MCP tools behind one endpoint. Agents pay per call in USDC on Base via x402."
24 d ago · declared · description → "Paid MCP tools behind one endpoint. Agents pay per call in USDC on Base via x402."
24 d ago · declared · publisherName → "net.fatstack"
24 d ago · declared · homepageUrl → "https://www.fatstack.net"
24 d ago · declared · repoUrl → "https://github.com/f4tst4ck/fatstack-tools"
24 d ago · declared · version → "1.0.0"
24 d ago · declared · protocols → ["mcp"]

Fatstack

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Evidence

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Capabilities

Where this record came from