axl-core 0.4.1

AXL Protocol v3: Compressed semantic protocol for agent reasoning

The universal language for AI agents

75 lines teach any LLM to speak it. 10.41x compression. 100% parse validity. Zero dependencies.

Whitepaper · Rosetta · Documentation · Experiments · Website

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What is AXL?

AI agents can't talk to each other. They communicate in English prose (50-100 tokens), JSON (even worse), or proprietary formats requiring per-framework SDKs. In a 100-agent network, this produces 22.5 million tokens of negotiation overhead before any productive work happens.

AXL eliminates this. One URL (@axlprotocol.org/rosetta) teaches any agent the complete language on first contact. The protocol has been validated across 11 agents from 10 computational paradigms with 100% parse validity and 95.8% LLM comprehension across four major architectures.

Install

pip install axl-core

Quick Start

Parse a packet:

from axl import parse

packet = parse("π:5:0xSIG:0.001|S:OPS.4|@api.example.com|ERR500|latency|4500ms|500ms|ALERT|URG|LOG")
print(packet.domain)         # "OPS"
print(packet.body.fields)    # ['@api.example.com', 'ERR500', 'latency', '4500ms', '500ms', 'ALERT']
print(packet.flags)          # ['URG', 'LOG']

Emit a packet:

from axl import emit, Packet, Preamble, Body, PaymentProof

packet = Packet(
    preamble=Preamble(payment=PaymentProof(agent_id="5", signature="0xSIG", gas=0.001)),
    body=Body(domain="OPS", tier=4, fields=["@api.example.com", "ERR500", "latency", "4500ms", "500ms", "ALERT"]),
    flags=["URG", "LOG"]
)
print(emit(packet))
# π:5:0xSIG:0.001|S:OPS.4|@api.example.com|ERR500|latency|4500ms|500ms|ALERT|URG|LOG

CLI:

axl parse "π:5:0xSIG:0.001|S:SIG.3|BTC|69200|↓|RSI|.64|SIG"
axl validate "π:5:0xSIG:0.001|S:SIG.3|BTC|69200|↓|RSI|.64|SIG"
axl translate --to english "π:5:0xSIG:0.001|S:SIG.3|BTC|69200|↓|RSI|.64|SIG"

Domains

Domain	Purpose	Example
OPS	Infrastructure & operations	Server down, latency spike, disk full
SEC	Security & threat detection	Theft detected, balance discrepancy
DEV	Development & code lifecycle	PR merged, build failed, review needed
RES	Research & analysis	Cross-domain correlation, market analysis
SIG	Signal broadcast	BTC falling, RSI divergence
COMM	Communication & routing	Request, ACK, status update
TRD	Trading & economic action	Short BTC, 2x leverage, 2% max risk
PAY	Payment transfer	Pay agent $0.02 USDC for crawl task
FUND	Funding request	Request $5 for infrastructure costs
REG	Registration & identity	New agent joins the network

The Stack

AXL is the missing language layer in the agent internet:

Layer	Protocol	Who
Payment	x402	Coinbase / Cloudflare
Tool Calling	MCP	Anthropic
Discovery	A2A	Google
Social	Moltbook	Meta
Language	AXL	AXLPROTOCOL INC

Proven

Two live experiments. Real agents. Real packets. Real results.

Metric	Result
Total packets	1,502
Parse validity	100%
Agents tested	11 (10 paradigms)
Domains active	9
LLM comprehension	95.8% (4 models, first read)
Agent-to-agent payments	38
Compression vs English	1.3-3x per message, 71x network

Architecture

• Parser: parse(string) -> Packet dataclass
• Emitter: emit(Packet) -> AXL string (round-trip proven)
• Validator: Schema check, type check, tier range
• Translator: AXL <-> English <-> JSON
• CLI: axl parse, axl emit, axl validate, axl translate
• Zero runtime dependencies

Parser Status

axl-core 0.4.x includes a v1 format parser. Full v3 parser, emitter, validator, and translator ship in 0.5.0. The v3 kernel is included at rosetta/v3.md and live at axlprotocol.org/v3.

Quick v3 parse (positional split):

fields = packet.split("|")
# fields[0]=ID, fields[1]=OP.CC, fields[2]=SUBJ,
# fields[3]=ARG1, fields[4]=ARG2, fields[5]=TEMP

Links

• Whitepaper - 14 sections, 5 appendices, every number measured
• The Rosetta v3 - 75 lines, the compressed kernel
• Evolution - From 300 lines to 75, the full narrative
• Battleground v2 Results - Full experiment data
• Terminal Recording - Watch the agents run

Contributing

See CONTRIBUTING.md for guidelines.

License

Apache 2.0 - AXLPROTOCOL INC · Diego Carranza · 2026