llms.txt, your OpenAPI spec, your response signatures, and your uptime record. Your brand reputation has a new format — and most companies don't know it yet.
Brand reputation in the human economy is built through narrative. Reviews. Word of mouth. Press coverage. Analyst reports. A prospect reads what others say about you, forms an impression, and decides whether to trust you with their business.
AI agents don't read narratives. They read signals. Structured, machine-parseable signals that tell them whether an API is trustworthy, well-documented, reliably available, and worth integrating with. If your signals are weak or missing, the agent moves on. It doesn't write a bad review. It just doesn't come back.
Does the agent know you exist? Do you have an llms.txt? An OpenAPI spec at a standard path? A /.well-known/x402 listing your payment terms? An agent.json declaring your capabilities? If an agent can't find you through standard discovery paths, you don't exist to it.
Does the agent know how you produce your data? Is your methodology documented and machine-readable? Can it verify the methodology hasn't changed since it last checked? An agent making a financial decision on your data needs to know the method, not just the number.
Can the agent verify that the data it received is the data you signed? An Ed25519 signature against a published public key lets any agent — and any auditor reviewing its decisions — verify the attestation independently. Unsigned data is unverifiable data.
What is your uptime? What is your response time? Is your data fresh? An agent integrating with a data source for production use needs to know it will be there when needed. Your reliability record is part of your reputation — and agents can measure it directly.
An agent evaluating your API will check these signals programmatically. If your llms.txt is missing, it won't find you. If your OpenAPI spec has gaps, it won't understand your full capability. If your responses aren't signed, it can't verify them. If your uptime is poor, it will down-weight your data or drop you from its source list entirely.
None of this generates a complaint. There's no ticket filed, no review posted, no email sent. The agent just quietly stops using you and you never know why. In the human economy, bad reputation is noisy. In the agentic economy, it's silent.
The good news: agentic reputation is more meritocratic than human reputation. An agent doesn't care about your PR agency or your conference presence. It cares whether your signals are strong.
Strong signals look like:
A complete discovery stack. llms.txt with accurate endpoint documentation. OpenAPI spec at /openapi.json. /.well-known/x402 listing paid endpoints and prices. /.well-known/agent.json declaring capabilities in A2A format. These aren't marketing materials — they're the interface through which agents evaluate you.
Cryptographic signatures on every response. Ed25519 or secp256k1 on a canonical string that includes the data, timestamp, nonce, and methodology version. Published public keys. A verification guide in the docs. This is the agentic equivalent of an SSL certificate — it's table stakes for anything an agent will trust with real decisions.
Documented, versioned methodology. If you produce a price, explain how. Which sources, which aggregation method, which outlier handling. If the methodology changes, version it. An agent that integrated with v1 of your methodology needs to know when you shipped v2.
Consistent uptime and response time. External monitoring. Status pages. SLA commitments. An agent needs to trust that the data will be there — and that trust is earned through track record, not promises.
In the human economy, brand building meant advertising, content, community, events. In the agentic economy, it means documentation, cryptography, uptime, and structured metadata. The audience has changed. The medium has changed. The fundamentals — be trustworthy, be transparent, be reliable — haven't.
Your brand reputation is now a machine-readable score. The question is whether you're building it intentionally or hoping the agents figure it out on their own.
Full discovery stack live. Ed25519 signatures on every paid response. External monitoring since Feb 2026. Methodology documented and versioned.
Mycelia Signal is a sovereign cryptographic oracle — 63 signed endpoints across crypto, stablecoin pegs, volatility indices, FX, economic indicators, and commodities. Payable by AI agents via Lightning (L402) or USDC on Base (x402). myceliasignal.com