Cold Email Python Packages

openoutsend

The send half of OpenOutreach: reads qualified leads on stdin (outfind find --json | outsend), persists them to its own store, and sends on its own clock.

instantlyai

Python SDK for instantly ai

openleads

🧲 The free, open-source Apollo alternative. Find tech founders & verify their emails using only free, public data. No API keys, no paid tiers.

billionverify

BillionVerify Python SDK

orallexa-marketing-agent

AI marketing agent. Submit project once → auto-generate platform-native posts for 12 platforms (X, Reddit, HN, Dev.to, 小红书, ...). Bandit variant prediction. pip · MIT.

deliverability-guard

A sending circuit breaker for outbound email. Watches reputation, bounce, complaint and warmup signals per mailbox and throttles or pauses before a domain burns. Refuses to trip on statistically meaningless data.

sigtap-agent-tools

sigtap - paid micro-tools for AI agents over x402 (USDC on Base). One signature per call. No keys.

opengtm

Open source alternative to Clay, Apollo, Semrush. AI lead generation, ICP scoring, AEO health check, outreach automation. Free with Gemini API.

tapac-sdk

Official Python SDK for TAPAC — find and verify B2B contacts programmatically.

vc-outreach-agent

Cold email drafter. --mode vc (investors) or --mode customer (paying customers). HITL queue + SMTP. Structured outputs. pip · MIT.

payments-agent

Overdue-invoice reminder drafter. Stripe-shaped types + MockProvider fallback. Hard money-safety prompt rules (verified in tests). pip · MIT.