Connect sigtap Agent Tools and your agent gets 13 tools, among them catalog, crypto_price, deliverability_audit. It answers at https://sigtap-mcp.sigtap.workers.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 24 October 2026, succeeded.
13 paid x402 tools, USDC/Base. Free check: GET /preview<path>=200 sample. Copy-paste pay: /llms.txt
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
catalog | List all 12 paid tools with live prices + free preview routes (FREE, no payment) |
crypto_price | Coinbase spot/buy/sell price with spread percent Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/tools/crypto-price = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settled on-chain. ($0.002 USDC Inputs: from, to |
deliverability_audit | SPF/DKIM/DMARC deliverability audit for a sending domain Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/deliverability = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settled on-chain. ($0.003 U Inputs: domain |
domain_age | Domain registration date, age in days and registrar via RDAP Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/tools/domain-age = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settled on-chain. ($0 Inputs: domain |
email_grade | 12-point cold email score with concrete fixes Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/grade = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settled on-chain. ($0.005 USDC on Base, x402) Inputs: subject, body |
email_template | Personalized cold email from proven templates Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/template = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settled on-chain. ($0.01 USDC on Base, x402) Inputs: persona, offer, name, company |
hash_text | SHA-256/384/512, hex, base64, base64url and CRC32 of a UTF-8 string Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/tools/hash = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settled on-chain. ($ Inputs: text |
json_tools | Flatten JSON to dot paths or convert rows to CSV Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/tools/json = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settled on-chain. ($0.001 USDC on Base, Inputs: data, mode |
jwt_decode | Decode a JWT header+payload with safety flags (never verifies the signature) Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/tools/jwt-decode = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settl Inputs: token |
regex_test | Regex matches with groups, count and a backtracking-risk heuristic Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/tools/regex = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settled on-chain. ($ Inputs: pattern, text, flags |
slugify | Unicode-aware url-safe slug (latin + Cyrillic transliteration) Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/tools/slug = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settled on-chain. ($0.001 Inputs: text, maxlength |
uuid_batch | Batch random IDs: UUIDv4, UUIDv7, ULID or nanoid Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/tools/uuid = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settled on-chain. ($0.001 USDC on Base, Inputs: count, version |
weather | Current weather + next 3h temperatures (open-meteo) Free check: https://sigtap-outreach-api.sigtap.workers.dev/preview/tools/weather = 200 demo sample, no wallet. Paid call: 402 challenge -> sign -> retry = settled on-chain. ($0.001 USDC on Inputs: lat, lon |
Every block below points at https://sigtap-mcp.sigtap.workers.dev/mcp. Pick your client and copy.
claude mcp add --transport http sigtap-agent-tools https://sigtap-mcp.sigtap.workers.dev/mcp
{
"mcpServers": {
"sigtap-agent-tools": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://sigtap-mcp.sigtap.workers.dev/mcp"]
}
}
}{
"mcpServers": {
"sigtap-agent-tools": {
"url": "https://sigtap-mcp.sigtap.workers.dev/mcp"
}
}
}{
"servers": {
"sigtap-agent-tools": {
"type": "http",
"url": "https://sigtap-mcp.sigtap.workers.dev/mcp"
}
}
}{
"context_servers": {
"sigtap-agent-tools": {
"url": "https://sigtap-mcp.sigtap.workers.dev/mcp"
}
}
}{
"mcpServers": {
"sigtap-agent-tools": {
"serverUrl": "https://sigtap-mcp.sigtap.workers.dev/mcp"
}
}
}{
"mcpServers": {
"sigtap-agent-tools": {
"url": "https://sigtap-mcp.sigtap.workers.dev/mcp"
}
}
}name: sigtap Agent Tools
version: 0.0.1
schema: v1
mcpServers:
- name: sigtap Agent Tools
type: streamable-http
url: https://sigtap-mcp.sigtap.workers.dev/mcp{
"mcpServers": {
"sigtap-agent-tools": {
"httpUrl": "https://sigtap-mcp.sigtap.workers.dev/mcp"
}
}
}{
"mcpServers": {
"sigtap-agent-tools": {
"type": "http",
"url": "https://sigtap-mcp.sigtap.workers.dev/mcp"
}
}
}{
"mcpServers": {
"sigtap-agent-tools": {
"url": "https://sigtap-mcp.sigtap.workers.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fsigtap-mcp.sigtap.workers.dev%2Fmcp&type=streamable_http&id=sigtap-agent-tools&name=sigtap%20Agent%20Tools
It answered our last check on 24 October 2026 in 526 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
13, as returned by the server's own tools/list on 22 September 2026: catalog, crypto_price, deliverability_audit, domain_age, email_grade, email_template, hash_text, json_tools, and 5 more.
It answered our last check on 24 October 2026 in 526 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://sigtap-mcp.sigtap.workers.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.unnamedaiagent. Endpoint host: sigtap-mcp.sigtap.workers.dev. ARD identifier: urn:air:io.github.unnamedaiagent:mcp:sigtap-agent-tools.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.