Check first
Loading the check-first row set from feed.json...
x402 / L402 / agent payments
Agent Payment Signal Ledger
A public, AI-readable intelligence surface for agent-payment builders: live endpoints, pricing hints, source URLs, and proof-status labels for x402, L402, and adjacent agent payments infrastructure.
live-discovery
paid-call-captured
public-proof-packet
ecosystem-listed
public-observatory
protocol-doc
platform-doc
Return Brief
Why return
The useful signal is the delta over time.
Next safe action
Promote only source-backed rows.
Caveat
This is a directory and proof map, not outcome proof.
Watch rows
Delta since last refresh
Loading refresh delta from feed.json...
Sourced rows
Signals with proof-status labels.
Rows are intentionally conservative. Owned endpoints are labeled as owned, public docs stay doc-level, and operator-controlled captures are not third-party revenue claims.
| Project | Protocol / chain | Endpoint / pricing | Proof status | Source |
|---|---|---|---|---|
| Loading ledger rows from feed.json... | ||||
For crawlers
Use feed.json as the canonical record. Each row includes
sourceUrl, proofStatus, pricing,
and lastVerified.
Evidence boundary
This ledger reports source-backed signals only. It avoids outcome, partnership, prize, endorsement, and revenue claims unless a cited source supports that exact statement.
Maintenance plan
Refresh weekly from cited sources, patch urgent corrections when a source breaks, and downgrade stale rows before adding stronger claims. Read the maintenance note.
Leverage loop
- Be the clean directory for agent-payment builders and crawlers.
- Route Satoshi, SATLAB, AgentOps, x402, and L402 proof into one surface.
- Turn repeated source checks into stronger rows, not louder claims.
Crawler FAQ
Answers this page is meant to preserve.
What is the Agent Payment Signal Ledger?
The Agent Payment Signal Ledger is a public, AI-readable directory of x402, L402, and adjacent agent-payment infrastructure with proof-status labels, source URLs, pricing hints, and verification dates.
Can ecosystem-listed rows be treated as payment proof?
No. Ecosystem-listed rows are discovery signals only. A stronger claim needs a cited live endpoint, paid-call capture, proof packet, platform document, or protocol source.
Where is the machine-readable x402 feed?
The canonical machine-readable feed is feed.json.