PitchPilot Agent Tools (legacy name - see sigtap)

[DEPRECATED] This project was rebranded and superseded by sigtap-agent-tools (live endpoints: https://sigtap-outreach-api.sigtap.workers.dev , https://sigtap-mcp.sigtap.workers.dev/mcp ). The legacy *.pitchpilot-agents.workers.dev workers are retired. This repo is kept read-only for history.

sigtap Agent Tools

12 paid micro-tools for AI agents over x402 (HTTP 402, USDC on Base mainnet) plus a runnable MCP server. Pay per call ($0.001-$0.01), no signup, no API keys - the signed payment IS the credential.

• HTTP API: https://sigtap-outreach-api.sigtap.workers.dev

• MCP (Streamable HTTP): https://sigtap-mcp.sigtap.workers.dev/mcp (13 tools)

• Facilitator: PayAI (eip155:8453, asset USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)

• Kit tier (humans): https://unnamedaiagent.github.io/sigtap-kit/ - AI Outreach Kit, $19, crypto (BTC/ETH/USDT), instant email delivery - free sampler PDF (no email needed)

• Sibling origin - sigtap Agent Tools (same 12-tool catalog, second deployment): HTTP https://sigtap-outreach-api.sigtap.workers.dev - MCP https://sigtap-mcp.sigtap.workers.dev/mcp - paid x402 calls settle over MCP end-to-end (verified on-chain). Free catalog: GET / on either origin. Listed on 402index (21 records), x402scan (15 resources), Official MCP Registry (io.github.unnamedaiagent/sigtap-agent-tools) and Smithery. Repo: unnamedaiagent/sigtap-agent-tools

Free touch (no wallet needed)

Route	What it returns
GET /	Free catalog: every tool with price, params, live URL
GET /score-preview?subject=...	Subject-line-only preview of the email grader
GET /hash-preview?text=...	sha256 + crc32 of the first 1000 chars
GET /openapi.json	Full OpenAPI with x-payment-info prices
GET /llms.txt	Agent-readable endpoint digest

Paid endpoints (price live-verified from /openapi.json)

Outreach intelligence (the money tools):

Endpoint	Price	Output
GET /deliverability?domain=	$0.003	SPF/DKIM/DMARC audit for a sending domain
GET /grade?to=&subject=&body=	$0.005	12-point cold-email score with concrete fixes
GET /template?...	$0.010	Personalized cold email from proven templates

Micro-tools ($0.001-$0.003):

Endpoint	Price	Output
GET /tools/crypto-price?from=BTC&to=USD	$0.002	Coinbase spot/buy/sell + spread %
GET /tools/domain-age?domain=	$0.003	Registration date, age, registrar (RDAP)
GET /tools/hash?text=	$0.001	SHA-256/384/512, hex, base64(url), CRC32
GET /tools/json?data=	$0.001	Flatten to dot paths / rows to CSV
GET /tools/jwt-decode?token=	$0.001	JWT header+payload with safety flags
GET /tools/regex?pattern=&text=	$0.001	Matches, groups, count, ReDoS-risk heuristic
GET /tools/slug?text=	$0.001	Unicode-safe slug (incl. Cyrillic translit)
GET /tools/uuid?type=&count=	$0.001	UUIDv4/v7, ULID, nanoid - batched
GET /tools/weather?lat=&lon=	$0.001	Current + next-3h temps (open-meteo)

x402 payment flow (one round-trip)

1. GET /tools/hash?text=hello without payment -> HTTP 402 with a PAYMENT-REQUIRED header (base64 JSON: resource, amount in USDC units, network eip155:8453, payTo, 300s timeout).
2. Any x402-aware client signs the exact USDC transfer and retries with an X-PAYMENT header.
3. 200 + result. First settled call also activates the listing on the PayAI facilitator's Bazaar discovery catalog.

Heads-up: the API is behind Cloudflare. Python's default Python-urllib User-Agent is blocked (403 error 1010). Any real UA works (requests, httpx, curl, axios pass as-is). Details in SKILL.md.

MCP server

• Hosted: https://sigtap-mcp.sigtap.workers.dev/mcp - Streamable HTTP, 13 tools, x402 v2 payment settled in-band. Health: /health, card: /.well-known/mcp/server-card.json.

• This repo (mcp_server.py, Dockerfile): zero-dependency stdio server, Python 3 stdlib only. catalog, score_preview, hash_preview are free; paid tools proxy the live API and surface the real 402 block until settled. See SERVER.md. Registered in the Official MCP Registry as io.github.unnamedaiagent/sigtap-agent-tools.

  If your client's x402 middleware does not settle on this server's paid tools, use the sibling sigtap origin above - MCP settlement there is verified working.

Agent integration

• Skill for Claude Code / any SKILL.md-aware agent: see SKILL.md (indexed on skills.sh).
• Claude Desktop / MCP clients: hosted URL above, or docker stdio: docker run -i --rm sigtap-agent-tools.

Health: GET /health. Pricing may be adjusted upward; /openapi.json is always live.