SubmitCheck

npx add-mcp 'https://submitcheck.appin60.com/mcp'

API for agents

The same checked directory data, pay-per-call in USDC on Base with x402. No account or key. Settled through the Coinbase CDP facilitator to 0xB442daCAE60C07bb5dB8f33C8a6c1572d8F24e83.

Route	Price	What it returns
GET /api/v1/categories	free	Categories with counts of reviewed, live directories.
GET /api/v1/directories?category=ai-directory&free=yes&account=no&limit=25	$0.01	Up to 50 reviewed live directories, sorted by Tranco popularity: submit URL, free option (yes / yes-backlink / queue / no), lowest price seen, account needed, captcha, wait or condition, check date.
GET /api/v1/directory?domain=betapage.co	$0.002	Our record for one of the 516 directories: live, dead, moved or unreachable, plus the fields above when reviewed.
GET /api/v1/dead-directories?kind=dead	$0.005	The 66 dead, down, unreachable or moved directories from the 11 lists, most-listed first.
GET /api/v1/check?domains=betapage.co,launched.io	$0.01	Up to 20 domains: our record for known ones, a live check now for unknown ones.

Invalid input returns 400 before any payment. A request without PAYMENT-SIGNATURE returns 402 with a PAYMENT-REQUIRED header (x402 v2, scheme exact, network eip155:8453). Data is returned only after the facilitator settles; the PAYMENT-RESPONSE header carries the transaction hash.

MCP (free)

Remote MCP server, streamable HTTP: https://submitcheck.appin60.com/mcp. Tools: find_launch_directories (category, free, no_account; 10 rows, basic fields) and check_launch_directory (domain). For Claude Code: claude mcp add --transport http submitcheck https://submitcheck.appin60.com/mcp

Humans: the whole sheet is $12 on the home page.