# Toolcall (toolcall.click)

Pay-per-call HTTP APIs, paid in USDC on Base via x402, offering crypto gas prices, FX rates, domain and email checks, and chemical safety lookups.

- Atlas card: https://inite.ai/en/atlas/toolcall.click
- Site: https://toolcall.click
- For: Developers and AI agents calling pay-per-call data and lookup APIs over HTTP
- Categories: dev
- Use 0/100 · alive 100/100

## Used for

- check a domain's registration age and mail setup
- verify email deliverability without sending any mail
- fetch chemical hazard data by CAS number

## Price

Not read yet.

## For developers

- OpenAPI: https://toolcall.click/openapi.json (20 paths)
- MCP server: click.toolcall/toolcall (namespace; open on 2026-10-23, 20 tools)
- Read 2026-10-23

## MCP server, measured daily

Server: https://toolcall.click/mcp, checked every day since 2026-10-23 (4 checks).

- Answered: measuring, 4 daily checks so far
- Median first answer: 141 ms
- Sign-in: none
- Context its tool definitions take: about 3329 tokens (20 tools)
- Tool definitions: B, 83/100
- Failing "params_described": 1 of 20 tools
- Failing "annotations": 20 of 20 tools
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-23

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Source: INITE Atlas, https://inite.ai/en/atlas/toolcall.click. JSON: https://inite.ai/api/atlas/toolcall.click. MCP: https://inite.ai/api/mcp (atlas_lookup).