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sigtap Agent Tools

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sigtap-mcp.sigtap.workers.dev

13 paid x402 micro-tools, USDC on Base: email audit/grade/templates, hash, JWT, UUID, slug, regex.

https://sigtap-mcp.sigtap.workers.dev/mcpWebsiteNo authMCP 2025-11-25v1.0.0last checked 21 Oct 2026spoke MCP on 100% of 84 checks (30 days)initialize in 695 ms

Last checked 21 Oct 2026

  • ✓Answered the MCP handshake (MCP 2025-11-25)
  • ✓Auth detected: No auth
  • ✓Lists 13 tools
  • ✓No blockers or warnings
  • ✓Spoke MCP on 84 of 84 checks (30 days)

Will my client connect?

Decided from what the probe found at the endpoint, and from what each client's own documentation says it can complete. Every row carries the day that documentation was read.

✓Claude CodeConnects

The endpoint answers an anonymous handshake, so no credential is needed.

claude mcp add --transport http sigtap-agent-tools https://sigtap-mcp.sigtap.workers.dev/mcp

Claude Code docs · read on 2026-08-30

✓Claude (claude.ai & Desktop)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Connectors → Add custom connector, then paste https://sigtap-mcp.sigtap.workers.dev/mcp.

Claude (claude.ai & Desktop) docs · read on 2026-08-30

✓ChatGPTConnects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Apps → Advanced settings → Developer mode, then create a connector pointing at https://sigtap-mcp.sigtap.workers.dev/mcp.

ChatGPT docs · read on 2026-08-30

✓CursorConnects

The endpoint answers an anonymous handshake, so no credential is needed.

{
  "mcpServers": {
    "sigtap-agent-tools": {
      "url": "https://sigtap-mcp.sigtap.workers.dev/mcp"
    }
  }
}

Cursor docs · read on 2026-08-30

✓VS Code (Copilot)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

{
  "servers": {
    "sigtap-agent-tools": {
      "type": "http",
      "url": "https://sigtap-mcp.sigtap.workers.dev/mcp"
    }
  }
}

VS Code (Copilot) docs · read on 2026-08-30

How to authenticate

Checked against the endpoint by our probe on 21 Oct 2026. These are the capabilities the server advertises, not a prediction about any particular client.

Scheme
No auth
Protected-resource metadata
✕Not found

Without it a client has to guess where the authorization server lives.

Anonymous access
Handshake succeeds; 13 tools listable

What the probe found

No CORS headers for browser-based clients

A cross-origin preflight came back without Access-Control-Allow-Origin, so the endpoint is reachable from native clients only — code running in a web page is stopped by the browser before a request is ever sent.

Tools

catalogcrypto_pricedeliverability_auditdomain_ageemail_gradeemail_templatehash_textjson_toolsjwt_decoderegex_testslugifyuuid_batchweather

Contract history

8 Sep 2026v1.0.012 cosmeticinstructions rewritten

Instructions rewritten: crypto_price, deliverability_audit, domain_age, email_grade, email_template, hash_text, json_tools, jwt_decode, regex_test, slugify, uuid_batch, weather. The description an agent follows changed; the callable contract may not have.

7 Sep 2026v1.0.013 compatible
6 Sep 2026v1.0.0first recorded contract

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Status badge

Status for a README, from the last probe — cached an hour, so up to seven hours behind the endpoint. Links back to this page.

MCP status badge for sigtap Agent Tools
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