AffixIO
Verification software for checking eligibility, membership, access and agent permissions against authorized records or configured sources, with evidence another system can inspect.
Visit affix-io.com →DocsPricingSource
AffixIO is a Node.js SDK (npm package affixio, version 2.0.4, Apache-2.0, Node.js 20+) and hosted service that lets applications check a defined requirement against customer-held records or configured external sources (SQL, files, HTTP APIs) and produce verifiable evidence of the result. It supports HMAC proofs (default), UltraHonk zero-knowledge proofs over bundled Noir circuits, ML-DSA-65 attestation, local proof verification, and a hosted MCP endpoint at https://www.affix-io.com/mcp/ exposing five verification tools. Use cases include eligibility checks, membership status, access permissions and agent purchase permission checks via the Agentic Pay Kit.
- Category
- Auth & identity
- Pricing
- freemium · from £19/month (Starter, 1,000 proofs; also $23 USD or €22 EUR)
- Free tier
- yes
- API
- yes
- MCP server
- yes
- SDK
- yes
- Open source
- yes
Listed 2026-10-29 · last verified 2026-10-29 · extracted by @cf/zai-org/glm-5.3-flash · confidence 0.95
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API
curl https://toolgrep.com/api/products/affixio