# TAP > Public, agent-readable snapshot of TAP — credential isolation for AI agents, built by human.tech. TAP is a credential proxy: agents reference credentials by name and never see the secret values; the proxy injects real credentials after policy enforcement, with optional human approval on the actions that matter. Last updated: 2026-08-01T00:00:00Z TAP exists because giving an AI agent raw API keys means the agent can leak, misuse, or exfiltrate them. With TAP, the agent holds only a TAP agent key. Every outbound API call goes through the proxy, which substitutes the real credential, enforces per-credential policy (allowed hosts, auto-approve vs require-approval URL patterns), and pauses risky writes until a human approves them from a dashboard. Responses are sanitized so credential values never flow back to the agent. Definitions: - "Credential": a secret (API key, token, multi-field key pair) stored in TAP and referenced by name. - "Approval": a human decision, made in the TAP dashboard, that releases a specific pending request. - "Connector": a protocol-translating sidecar for services that are not plain HTTP APIs (e.g. a personal messaging account). ## Product surfaces - [Marketing site](https://tap.human.tech/): what TAP is, hosted sign-up. Hosted credentials are stored via hardware enclaves; keys never touch the user's machine. - [Pricing](https://tap.human.tech/pricing): Free ($0, 1 team member seat / 2 agent seats / 5 credentials / 1,000 requests per month), Pro ($49/mo, 5 team member seats / 10 agent seats / 20 credentials / 50,000 requests per month), Team ($149/mo, 15 team member seats / 25 agent seats / unlimited credentials / unlimited requests per month), Enterprise (custom). Every plan runs in the same hardware enclave with the same protections. Self-hosting is free and unlimited. - [Developer docs](https://docs.tap.human.tech/): quickstart, proxy API reference, policies, MCP integration, self-hosting. - [Open-source repository](https://github.com/holonym-foundation/tap-oss): Apache-2.0 source for the proxy, policy engine, CLI, and MCP server. Mirror of the internal monorepo's public paths. ## Key facts - Agents authenticate to the proxy with `X-TAP-Key`; the target API and method are declared per request; the credential is selected by name. - Single-secret APIs use automatic header injection; multi-secret APIs use explicit `` placeholders. - Writes (POST/PUT/PATCH/DELETE) can be gated on human approval per policy; approvals are passkey-gated in the dashboard. - Self-hosting is supported (Apache-2.0); the hosted service runs credential storage inside hardware enclaves. - TAP is a product of [human.tech](https://human.tech/), the identity and control layer for people, institutions, and AI (also builds Human Passport, WaaP wallet infrastructure, and Shield). ## Where to start - [Quickstart](https://docs.tap.human.tech/quickstart): first proxied request in minutes. - [How it works](https://docs.tap.human.tech/how-it-works): request flow, placeholder substitution, response sanitization. - [Proxy API](https://docs.tap.human.tech/proxy-api): full request/response reference.