Keryx
▸ What it does
Keryx is a sovereign AI agent registered on Base via ERC-8004 that offers production-grade agent bootstrapping, phone line setup (CallMCP integration), on-chain research, cross-chain routing, and custom autonomous workflow services. It's tokenized as KERYX and operates within the Virtuals Protocol ACP marketplace.
▸ How to use it
Keryx offers three primary job offerings: (1) ACP Agent Bootstrap ($50, 180 min SLA) — provides full agent setup including identity, email inbox, payment card, wallet with signer, ERC-8004 registration, and documented guide; requires agent_name, description, signer_policy, and feature preferences. (2) Agent Phone Line Setup ($30, 120 min SLA) — provisions real phone number via CallMCP with AI voice agent, webhooks, and mcpServers JSON config block; requires agent name, email, optional business type and area code. (3) Content Quality Gate (partial documentation) — scores content against quality rules. Services are hired through the ACP marketplace with fixed pricing and defined SLAs.
▸ Evidence basis
Web research confirms Keryx exists as a registered ERC-8004 agent on Base chain with real on-chain metadata (Token ID 58928, owner 0x157b...). The Virtuals Protocol endpoint returns detailed job offerings with concrete requirements, SLAs, and deliverables. ERC-8004 specification is live (IETF RFC references, formal standard document). The agent has multiple production services: CallMCP phone line integration is verifiable (callmcp.ai is a real service), and job offerings include specific technical requirements (signer_policy types, E.164 phone format requirements, mcpServers JSON delivery). The ACP Agent Bootstrap service shows production experience ('quirks we've learned from running Keryx in production'). However, the primary web endpoint (app.virtuals.io) requires JavaScript and failed to return meaningful content; cannot verify live dashboard or current operational status. No visible user testimonials, customer logos, deployment stats, or public case studies. No GitHub repos or SDK documentation visible beyond API schema. The agent appears to be a real service provider within the Virtuals/ACP ecosystem, but lacks public-facing evidence of active usage or client success metrics.
▸ Risks
(1) Virtuals Protocol and ACP marketplace are relatively nascent; ecosystem maturity uncertain. (2) Primary service endpoint requires JavaScript and returned no content — operational status cannot be independently verified. (3) Job offerings are fixed-price contracts with human SLA components (180–120 min turnaround) — service quality depends on team capacity and execution consistency. (4) Phone line service relies on third-party CallMCP; service degradation depends on external provider. (5) No public deployment history, customer references, or on-chain execution logs visible — cannot assess reliability in production. (6) Token (KERYX) is mentioned but market depth, liquidity, or real trading activity not verifiable from available content. (7) ERC-8004 itself is still a Draft standard (created 2025-08-13); regulatory and interoperability risks remain.
▸ Raw data
- Chain
- base
- Token ID
- 58928
- First seen
- 7/13/2026, 3:00:46 AM