Standards Engagement
Building agentic commerce in the open.
Rivier and Tenzro engage the standards bodies defining the agentic-payments stack — W3C, IETF, FIDO, Linux Foundation, ChainAgnostic, SatoshiLabs, and the working groups around x402, AP2, MPP, A2A, and ERC-8004. Below is the live log of what's filed, where, and what state it's in. Updated when GitHub state changes.
12
Active artifacts
12
Open · awaiting review
9
Tenzro · rail layer
3
Rivier · RIVR layer
Last checked 2026-05-02 · refresh against gh search prs --author=hilarl
Why two surfaces
Tenzro is the rail. Rivier is the stablecoin and the agentic-commerce layer that runs on it.
Both surfaces are authored by the same founding team. The standards work splits cleanly because the artifacts themselves do: a CAIP namespace registers a chain, an ERC drafts a token primitive, an x402 scheme defines a payment rule. Some belong to the chain layer; some belong to the stablecoin. Listed separately so the lineage is legible to anyone reading.
Tenzro · rail
Validator on the Canton Global Synchronizer and EVM/SVM chain. Standards work registers the chain identity (DID, SLIP-44, CAIP), wires it into agent payment rails (x402, MPP, A2A), and indexes it in ecosystem catalogues (ERC-8004).
Rivier · RIVR
USD-pegged settlement stablecoin with mandate validation, agent attestation, programmable batching, and continuous settlement streams as token-contract primitives. Standards work proposes the upstream protocol shapes (mandate-bound x402, AP2 on-chain binding) that RIVR's contracts already implement.
The Log
Active filings, grouped by body.
Every entry links directly to the GitHub artifact. State reflects the artifact's status as of 2026-05-02 — page is regenerable from gh search prs --author=hilarl.
W3C
Web identity, DID methods, verifiable credentials
SatoshiLabs SLIPs
BIP-44 coin types and HD-wallet derivation paths
ChainAgnostic CAIP
Chain-agnostic identifiers (CAIP-2/10/19/25)
x402 Foundation (Linux Foundation)
HTTP-402 agentic-payment protocol
- OpenPRRivier · RIVRx402-foundation/x402 #2175· filed 2026-05-02
spec(schemes): add mandate-bound — overview + EVM impl
Proposes a mandate-bound scheme on x402 — agent payments authorised by a constraint envelope (per-tx cap, cumulative cap, asset allowlist, expiry). Maps directly to RIVR's transferWithMandate primitive.
- OpenDiscussionRivier · RIVRx402-foundation/x402 #2176· filed 2026-05-02
Discussion: scheme `mandate-bound` for constraint-envelope payments
Discussion thread accompanying #2175 — the public forum where the mandate-bound scheme is being shaped before draft consolidation.
Coinbase x402
Reference implementation of x402
AP2 (Google Agentic Commerce, FIDO)
Agent Payments Protocol — mandate-bound auth
A2A (Google Agentic Commerce)
Agent-to-agent protocol extensions
verifiable-intent
Cross-protocol agentic-intent landscape
Tempo MPP-specs (IETF)
Merchant Payment Protocol method specs
- OpenPRTenzro · railtempoxyz/mpp-specs #252· filed 2026-05-02
Add Tenzro method specification
Defines the Tenzro method on Tempo's Merchant Payment Protocol — merchants quoting MPP discover Tenzro as a supported settlement chain.
- OpenPRTenzro · railtempoxyz/mpp-specs #253· filed 2026-05-02
feat(methods): add tenzro charge IETF I-D
Internet-Draft for the Tenzro charge method — formal IETF-track filing so MPP's Tenzro support has standards-grade documentation, not just a repo PR.
awesome-erc8004
ERC-8004 ecosystem index
What's Next
The recognition pathway from here.
The filings above register the rail layer and propose upstream agent-payment shapes. The RIVR-specific stablecoin pathway adds three more load-bearing artifacts. Listed without dates because they don't exist yet — the page updates when they ship.
- Pending — Audit
Trail of Bits / OpenZeppelin / Spearbit class audit of the RIVR launch contracts.
113/113 forge tests pass today including the dryRun byte-equivalence invariant. Every subsequent submission cites the audit lineage.
- Pending — ERC
Ethereum Magicians thread → eips.ethereum.org draft for a Programmable Mandate-Bound Stablecoin Standard.
The RIVR-named standards artifact. Generalises the transferWithMandate primitive so other stablecoins can adopt it.
- Pending — Conferences
Devcon 8 (Mumbai, Nov 2026) and Financial Cryptography 2027 (Tokyo, Apr 2027) CFP submissions.
Merit-track venues, not sponsor slots. Talks cite the audit + ERC + the live deployment, not marketing announcements.
House Rules
How we contribute upstream.
- Read CONTRIBUTING.md first. Every PR drafted only after direct verification of each project's CLA, DCO, signed-commits, AI policy, and merge style.
- No spam. Filings staggered across weeks. One coherent change per artifact. Maintainer time is the scarce resource.
- Status reflects reality. A PR is "open" until it isn't. We don't claim merged when in-flight, or in-flight when closed-for-scope.
- Discussion before draft. Where the body requires it (Solana SIMD, Ethereum EIPs, OpenZeppelin scope), the discussion lands first; the draft only after engagement.
Engage
Working on the same standards?
Let's compare notes.
If your team is on x402 / AP2 / MPP / A2A / ERC-8004 or shipping mandate-bound payment infrastructure, we'd like to read your work and share ours. Standards converge faster when the implementations talk.